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Introduction to Algorithms Introduction to Algorithms Introduction to course. Why we write Algorithm? Who writes Algorithm? When Algorithms are written? Differences between Algorithms and Programs PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/0IAPZzGSbME https://www.techtube.co.in/tutorials/10-sum-of-elements-between-k1-smallest-and-k2-smallest-numbers 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/3ioQQQrnw4Q/maxresdefault.jpg 10 Sum of Elements between k1 smallest and k2 smallest numbers Given an array of integers and two numbers k1 and k2. Find the sum of all elements between given two k1’th and k2’th smallest elements of the array. It may be assumed that all elements of array are distinct. Example : Input : arr[] = {20, 8, 22, 4, 12, 10, 14}, k1 = 3, k2 = 6 Output : 26 3rd smallest element is 10. 6th smallest element is 20. Sum of all element between k1 & k2 is 12 + 14 = 26 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/3ioQQQrnw4Q https://www.techtube.co.in/tutorials/101-avl-tree-insertion-and-rotations 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/jDM6_TnYIqE/hqdefault.jpg 10.1 AVL Tree - Insertion and Rotations AVL Trees ----------------- Binary Search Trees Drawbacks of Binary Search Tree What are AVL Trees Rotations in AVL Trees Creating AVL Trees PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/jDM6_TnYIqE https://www.techtube.co.in/tutorials/102-b-trees-and-b-trees-how-they-are-useful-in-databases 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/aZjYr87r1b8/hqdefault.jpg 10.2 B Trees and B+ Trees. How they are useful in Databases This video explains B Trees and B+ Trees and how they are used in databases. Insertion, Deletion and Analysis will be covered in next video. Each node of a B+ Tree is a block on Disk. The degree of a Tree is decided based number of keys and child pointers that can fit inside a block. 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Example1: Input: Arr[] : 1,1,2,3 diff: 1 Output: 3 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/ot_XBHyqpFc https://www.techtube.co.in/tutorials/11-priori-analysis-and-posteriori-testing 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/-JTq1BFBwmo/hqdefault.jpg 1.1 Priori Analysis and Posteriori Testing Difference between Priori Analysis and Posteriori Testing Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/-JTq1BFBwmo https://www.techtube.co.in/tutorials/1101-comparison-of-functions-1 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/mwN18xfwNhk/hqdefault.jpg 1.10.1 Comparison of Functions #1 Comparing Complex Functions Two functions can be compared by 1.Substitution 2. 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Now you have 2 symbols + and -. For each integer, you should choose one from + and - as its new symbol. Find out how many ways to assign symbols to make sum of integers equal to target S. Example 1: Input: nums is [1, 1, 1, 1, 1], S is 3. Output: 5 Explanation: -1+1+1+1+1 = 3 +1-1+1+1+1 = 3 +1+1-1+1+1 = 3 +1+1+1-1+1 = 3 +1+1+1+1-1 = 3 There are 5 ways to assign symbols to make the sum of nums be target 3. PROBLEM STATEMENT LINK:https://leetcode.com/problems/target-sum/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/Hw6Ygp3JBYw https://www.techtube.co.in/tutorials/13-how-write-and-analyze-algorithm 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/xGYsEqe9Vl0/hqdefault.jpg 1.3 How Write and Analyze Algorithm How to Write Algorithm How to Analyse Simple Algorithm. 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Examples: Input : W = 100 val[] = {1, 30} wt[] = {1, 50} Output : 100 There are many ways to fill knapsack. 1) 2 instances of 50 unit weight item. 2) 100 instances of 1 unit weight item. 3) 1 instance of 50 unit weight item and 50 instances of 1 unit weight items. We get maximum value with option 2. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/unbounded-knapsack-repetition-items-allowed/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/aycn9KO8_Ls https://www.techtube.co.in/tutorials/14-frequency-count-method 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/1U3Uwct45IY/hqdefault.jpg 1.4 Frequency Count Method Frequency count method Analysis of Algorithm with loops nested loops Sum of All elements in an array Adding 2 Matrices Multiplying 2 Matrices PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/1U3Uwct45IY https://www.techtube.co.in/tutorials/14-rod-cutting-problem 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/SZqAQLjDsag/maxresdefault.jpg 14 Rod Cutting Problem Rod Cutting Problem Given a rod of length n inches and an array of prices that contains prices of all pieces of size smaller than n. Determine the maximum value obtainable by cutting up the rod and selling the pieces. Example: if length of the rod is 8 and the values of different pieces are given as following, then the maximum obtainable value is 22 (by cutting in two pieces of lengths 2 and 6) length | 1 2 3 4 5 6 7 8 -------------------------------------------- price | 1 5 8 9 10 17 17 20 PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/cutting-a-rod-dp-13/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/SZqAQLjDsag https://www.techtube.co.in/tutorials/15-coin-change-problem-maximum-number-of-ways 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/I4UR2T6Ro3w/maxresdefault.jpg 15 Coin change problem: Maximum number of ways Coin Change Problem Maximum Number of ways Given a value N, if we want to make change for N cents, and we have infinite supply of each of S = { S1, S2, .. , Sm} valued coins, how many ways can we make the change? The order of coins doesn’t matter. Example: for N = 4 and S = {1,2,3}, there are four solutions: {1,1,1,1},{1,1,2},{2,2},{1,3}. So output should be 4. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/coin-ch... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/I4UR2T6Ro3w https://www.techtube.co.in/tutorials/151-time-complexity-1 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/9TlHvipP5yA/hqdefault.jpg 1.5.1 Time Complexity #1 Finding Time Complexity of Different kind of snippets PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/9TlHvipP5yA https://www.techtube.co.in/tutorials/152-time-complexity-example-2 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/9SgLBjXqwd4/hqdefault.jpg 1.5.2 Time Complexity Example #2 Time Complexity Examples PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/9SgLBjXqwd4 https://www.techtube.co.in/tutorials/153-time-complexity-of-while-and-if-3 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/p1EnSvS3urU/hqdefault.jpg 1.5.3 Time Complexity of While and if #3 Time Complexity of While and if statements PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/p1EnSvS3urU https://www.techtube.co.in/tutorials/16-classes-of-functions 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/w7t4_JUUTeg/hqdefault.jpg 1.6 Classes of functions classes of time and space functions Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/w7t4_JUUTeg https://www.techtube.co.in/tutorials/16-coin-change-problem-minimum-number-of-coins 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/I-l6PBeERuc/maxresdefault.jpg 16 Coin change problem: Minimum number of coins Coin Change Problem Minimum Numbers of coins Given a value V, if we want to make change for V cents, and we have infinite supply of each of C = { C1, C2, .. , Cm} valued coins, what is the minimum number of coins to make the change? Example: Input: coins[] = {25, 10, 5}, V = 30 Output: Minimum 2 coins required We can use one coin of 25 cents and one of 5 cents PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/find-mi... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/I-l6PBeERuc https://www.techtube.co.in/tutorials/17-coin-change-problem-contd 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/rMfOgY07TFs/maxresdefault.jpg 17 Coin change problem Contd. Coin Change Problem(contd) before this video, see this https://youtu.be/I-l6PBeERuc first. Given a value V, if we want to make change for V cents, and we have infinite supply of each of C = { C1, C2, .. , Cm} valued coins, what is the minimum number of coins to make the change? Examples: Input: coins[] = {25, 10, 5}, V = 30 Output: Minimum 2 coins required We can use one coin of 25 cents and one of 5 cents PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/find-mi... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/rMfOgY07TFs https://www.techtube.co.in/tutorials/17-compare-class-of-functions 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/5v-tKX2uRAk/hqdefault.jpg 1.7 Compare Class of Functions Compare Class of Functions Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/5v-tKX2uRAk https://www.techtube.co.in/tutorials/18-longest-common-subsequence-introduction 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/4dMlCZTONj8/maxresdefault.jpg 18 Longest common subsequence Introduction Introduction to Longest Common Subsequence Problem(LCS) LCS Problem Statement: Given two sequences, find the length of longest subsequence present in both of them. A subsequence is a sequence that appears in the same relative order, but not necessarily contiguous. For example, “abc”, “abg”, “bdf”, “aeg”, ‘”acefg”, .. etc are subsequences of “abcdefg”. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/longest-common-subsequence-dp-4/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/4dMlCZTONj8 https://www.techtube.co.in/tutorials/181-asymptotic-notations-big-oh-omega-theta-1 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/A03oI0znAoc/hqdefault.jpg 1.8.1 Asymptotic Notations Big Oh - Omega - Theta #1 Asymptotic Notations #1 Big - Oh Omega Theta PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/A03oI0znAoc https://www.techtube.co.in/tutorials/182-asymptotic-notations-big-oh-omega-theta-2 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/Nd0XDY-jVHs/hqdefault.jpg 1.8.2 Asymptotic Notations - Big Oh - Omega - Theta #2 Asymptotic Notations Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/Nd0XDY-jVHs https://www.techtube.co.in/tutorials/19-longest-common-subsequence-recursive 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/4Urd0a0BNng/maxresdefault.jpg 19 Longest common subsequence Recursive Longest Common Subsequence Problem solution using recursion Given two sequences, find the length of longest subsequence present in both of them. A subsequence is a sequence that appears in the same relative order, but not necessarily contiguous. For example, “abc”, “abg”, “bdf”, “aeg”, ‘”acefg”, .. etc are subsequences of “abcdefg”. PROBLEM STATEMENT LINK: https://www.geeksforgeeks.org/longest... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/4Urd0a0BNng https://www.techtube.co.in/tutorials/19-properties-of-asymptotic-notations 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/NI4OKSvGAgM/hqdefault.jpg 1.9 Properties of Asymptotic Notations Properties of Asymptotic Notation General Property Reflexive Property Symmetric Property Transpose Property Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/NI4OKSvGAgM https://www.techtube.co.in/tutorials/2-divide-and-conquer 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/2Rr2tW9zvRg/hqdefault.jpg 2 Divide And Conquer What is Divide and Conquer Strategy General Method for Divide and Conquer Types of Problems PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/2Rr2tW9zvRg https://www.techtube.co.in/tutorials/2-sum-problem-2-types-of-the-same-problem-for-interviews-brute-better-optimal 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/UXDSeD9mN-k/maxresdefault.jpg 2 Sum Problem | 2 types of the same problem for Interviews | Brute-Better-Optimal Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 2Sum Problem - https://takeuforward.org/plus/dsa/problems/two-sum Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/UXDSeD9mN-k https://www.techtube.co.in/tutorials/2-types-of-knapsack 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/l02UxPYRmCQ/maxresdefault.jpg 2 Types of knapsack Types of Knapsack Problems. (i)0-1 Knapsack (ii) Fractional Knapsack (iii)Unbounded Knapsack 0/1 Knapsack link:https://www.geeksforgeeks.org/0-1-knapsack-problem-dp-10 Fractional Knapsack link: https://www.geeksforgeeks.org/fractional-knapsack-problem/ Unbounded Knapsack link:https://www.geeksforgeeks.org/unbounded-knapsack-repetition-items- allowed/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/l02UxPYRmCQ https://www.techtube.co.in/tutorials/20-longest-common-subsequence-memoization 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/g_hIx4yn9zg/maxresdefault.jpg 20 Longest common subsequence Memoization Longest Common Subsequence Problem solution using Memoization Given two sequences, find the length of longest subsequence present in both of them. A subsequence is a sequence that appears in the same relative order, but not necessarily contiguous. For example, “abc”, “abg”, “bdf”, “aeg”, ‘”acefg”, .. etc are subsequences of “abcdefg”. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/longest... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/g_hIx4yn9zg https://www.techtube.co.in/tutorials/2026-will-be-myour-year 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/U96NbbHR2eg/maxresdefault.jpg 2026 will be MY/OUR Year!!! Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course 2026 will be ours. lets do this together. ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/U96NbbHR2eg https://www.techtube.co.in/tutorials/21-longest-common-subsequence-top-down-dp 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/hR3s9rGlMTU/maxresdefault.jpg 21 Longest common subsequence Top down DP Longest Common Subsequence Problem solution using TOP DOWN APPROACH Given two sequences, find the length of longest subsequence present in both of them. A subsequence is a sequence that appears in the same relative order, but not necessarily contiguous. For example, “abc”, “abg”, “bdf”, “aeg”, ‘”acefg”, .. etc are subsequences of “abcdefg”. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/longest-common-subsequence-dp-4/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/hR3s9rGlMTU https://www.techtube.co.in/tutorials/211-recurrence-relation-tn-tn-1-1-1 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/4V30R3I1vLI/hqdefault.jpg 2.1.1 Recurrence Relation (T(n)= T(n-1) + 1) #1 Recurrence Relation for Decreasing Function Example : T(n)= T(n-1) +1 PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/4V30R3I1vLI https://www.techtube.co.in/tutorials/212-recurrence-relation-tn-tn-1-n-2 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/IawM82BQ4II/hqdefault.jpg 2.1.2 Recurrence Relation (T(n)= T(n-1) + n) #2 Recurrence Relation for Decreasing Function Example : T(n)= T(n-1) +n Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/IawM82BQ4II https://www.techtube.co.in/tutorials/213-recurrence-relation-tn-tn-1-log-n-3 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/MhT7XmxhaCE/hqdefault.jpg 2.1.3 Recurrence Relation (T(n)= T(n-1) + log n) #3 Recurrence Relation for Decreasing Function Example : T(n)= T(n-1) + log n Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/MhT7XmxhaCE https://www.techtube.co.in/tutorials/214-recurrence-relation-tn2-tn-11-4 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/JvcqtZk2mng/hqdefault.jpg 2.1.4 Recurrence Relation T(n)=2 T(n-1)+1 #4 Recurrence Relation for Decreasing/ Subtracting Functions Example : T(n) = 2 T(n-1) +1 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/JvcqtZk2mng https://www.techtube.co.in/tutorials/22-longest-common-substring 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/HrybPYpOvz0/maxresdefault.jpg 22 Longest Common Substring Longest Common Substring(Dynamic Programming) Given two strings ‘X’ and ‘Y’, find the length of the longest common substring. Examples: Input : X = “GeeksforGeeks”, y = “GeeksQuiz” Output : 5 The longest common substring is “Geeks” and is of length 5. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/longest-common-substring-dp-29/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/HrybPYpOvz0 https://www.techtube.co.in/tutorials/22-masters-theorem-decreasing-function 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/CyknhZbfMqc/hqdefault.jpg 2.2 Masters Theorem Decreasing Function Masters Theorem for Decreasing Function T(n)=a T(n-b) +f(n) case 1: if a less than 1 then T(n)=O(f(n)) case 2: if equal 1 then T(n)=O(n*f(n)) case 3: if a greater than 1 then T(n)=O(f(n) a n/b) PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/CyknhZbfMqc https://www.techtube.co.in/tutorials/23-printing-longest-common-subsequence 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/x5hQvnUcjiM/maxresdefault.jpg 23 Printing Longest common subsequence Printing Longest Common Subsequence Given two sequences, print the longest subsequence present in both of them. Example: LCS for input Sequences “ABCDGH” and “AEDFHR” is “ADH” of length 3. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/printin... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/x5hQvnUcjiM https://www.techtube.co.in/tutorials/231-recurrence-relation-dividing-function-tntn21-1 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/8gt0D0IqU5w/hqdefault.jpg 2.3.1 Recurrence Relation Dividing Function T(n)=T(n/2)+1 #1 Recurrence Relation for Dividing Function Example : T(n) = T(n/2) +1 explained using Recursion Tree and Back Substitution Method Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/8gt0D0IqU5w https://www.techtube.co.in/tutorials/232-recurrence-relation-dividing-tntn2-n-2 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/XcZw01FuH18/hqdefault.jpg 2.3.2 Recurrence Relation Dividing [ T(n)=T(n/2)+ n]. #2 Recurrence Relation for Dividing Functions Example : T(n)= T(n/2) + n solved using Recursion Tree and Back Substitution Method Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/XcZw01FuH18 https://www.techtube.co.in/tutorials/233-recurrence-relation-tn-2tn2-n-3 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/1K9ebQJosvo/hqdefault.jpg 2.3.3 Recurrence Relation [ T(n)= 2T(n/2) +n] #3 Recurrence Relation for Dividing Function Example : T(n)= 2T(n/2) + n Solved using Recursion Tree and Back Substitution Method PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/1K9ebQJosvo https://www.techtube.co.in/tutorials/24-shortest-common-supersequence 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/823Grn4_dCQ/maxresdefault.jpg 24 Shortest Common SuperSequence Shortest Common SuperSequence Given two strings str1 and str2, find the shortest string that has both str1 and str2 as subsequences. Examples: Input: str1 = "geek", str2 = "eke" Output: "geeke" PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/shortes... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/823Grn4_dCQ https://www.techtube.co.in/tutorials/241-masters-theorem-in-algorithms-for-dividing-function-1 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/OynWkEj0S-s/hqdefault.jpg 2.4.1 Masters Theorem in Algorithms for Dividing Function #1 Masters Theorem for Dividing Functions Explained All cases with Examples PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/OynWkEj0S-s https://www.techtube.co.in/tutorials/242-examples-for-master-theorem-2 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/kGcO-nAm9Vc/hqdefault.jpg 2.4.2 Examples for Master Theorem #2 Examples for all cases of Master Theorem PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/kGcO-nAm9Vc https://www.techtube.co.in/tutorials/25-minimum-number-of-insertion-and-deletion-to-convert-string-a-to-string-b 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/-fx6aDxcWyg/maxresdefault.jpg 25 Minimum Number of Insertion and Deletion to convert String a to String b Minimum number of deletions and insertions to transform one string into another Given two strings ‘str1’ and ‘str2’ of size m and n respectively. The task is to remove/delete and insert minimum number of characters from/in str1 so as to transform it into str2. It could be possible that the same character needs to be removed/deleted from one point of str1 and inserted to some another point. Example: Input : str1 = "geeksforgeeks", str2 = "geeks" Output : Minimum Deletion = 8 Minimum Insertion = 0 PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/minimum... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/-fx6aDxcWyg https://www.techtube.co.in/tutorials/25-root-function-recurrence-relation 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/9rVuyjxzwgM/hqdefault.jpg 2.5 Root function (Recurrence Relation) Recurrence Relation for Root Function solved using Substitution method PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/9rVuyjxzwgM https://www.techtube.co.in/tutorials/26-longest-palindromic-subsequence 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/wuOOOATz_IA/maxresdefault.jpg 26 Longest Palindromic Subsequence Longest Palindromic Subsequence Given a sequence, find the length of the longest palindromic subsequence in it. Example : Input:"bbbab" Output:4 PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/longest-palindromic-subsequence-dp-12/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/wuOOOATz_IA https://www.techtube.co.in/tutorials/261-binary-search-iterative-method 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/C2apEw9pgtw/hqdefault.jpg 2.6.1 Binary Search Iterative Method Divide and Conquer Method Binary Search Method Iterative Algorithm Analysis of Binary Search Algorithm PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/C2apEw9pgtw https://www.techtube.co.in/tutorials/262-binary-search-recursive-method 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/uEUXGcc2VXM/hqdefault.jpg 2.6.2 Binary Search Recursive Method Divide and Conquer Binary search Recursive method Analysis PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/uEUXGcc2VXM https://www.techtube.co.in/tutorials/263-heap-heap-sort-heapify-priority-queues 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/HqPJF2L5h9U/hqdefault.jpg 2.6.3 Heap - Heap Sort - Heapify - Priority Queues PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 Topics Covered 1. Array Representation of Binary Tree 2. Complete Binary Tree 3. Heap 4. Heap Sort 5. Heapify 6. Priority Queue https://www.youtube.com/embed/HqPJF2L5h9U https://www.techtube.co.in/tutorials/271-two-way-mergesort-iterative-method 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/6pV2IF0fgKY/hqdefault.jpg 2.7.1 Two Way MergeSort - Iterative method Video Covers What is Merging ? What is M-Way Merge ? What are Merge Patterns ? Two Way MergeSort is Different from Merge Sort Two way MergeSort is Iterative Procedure MergeSort is Recursive Procedure PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/6pV2IF0fgKY https://www.techtube.co.in/tutorials/272-merge-sort-algorithm 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/mB5HXBb_HY8/hqdefault.jpg 2.7.2. Merge Sort Algorithm You should already know what is merging and merge patterns you can watch here https://youtu.be/6pV2IF0fgKY MergeSort Recursive Method Tracing of MergeSort Algorithm Analysis of MergeSort Algorithm Draw backs of MergeSort PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/mB5HXBb_HY8 https://www.techtube.co.in/tutorials/273-mergesort-in-depth-analysis 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/ak-pz7tS5DE/hqdefault.jpg 2.7.3 MergeSort in-depth Analysis Pro and Cons of MergeSort Drawbacks PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/ak-pz7tS5DE https://www.techtube.co.in/tutorials/28-minimum-number-of-deletion-in-a-string-to-make-it-a-palindrome 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/CFwCCNbRuLY/maxresdefault.jpg 28 Minimum number of deletion in a string to make it a palindrome Minimum number of deletions to make a string palindrome Given a string of size ‘n’. The task is to remove or delete minimum number of characters from the string so that the resultant string is palindrome. Examples : Input : aebcbda Output : 2 Remove characters 'e' and 'd' Resultant string will be 'abcba' which is a palindromic string PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/minimum-number-deletions-make-string-palindrome/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/CFwCCNbRuLY https://www.techtube.co.in/tutorials/281-quicksort-algorithm 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/7h1s2SojIRw/hqdefault.jpg 2.8.1 QuickSort Algorithm Quick Sort Algorithm Explained PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/7h1s2SojIRw https://www.techtube.co.in/tutorials/282-quicksort-analysis 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/-qOVVRIZzao/hqdefault.jpg 2.8.2 QuickSort Analysis Analysis of QuickSort Algorithm PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/-qOVVRIZzao https://www.techtube.co.in/tutorials/29-print-shortest-common-supersequence 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/VDhRg-ZJTuc/maxresdefault.jpg 29 Print shortest common Supersequence Given two strings X and Y, print the shortest string that has both X and Y as subsequences. If multiple shortest supersequence exists, print any one of them. Examples: Input: X = "AGGTAB", Y = "GXTXAYB" Output: "AGXGTXAYB" OR "AGGXTXAYB" OR Any string that represents shortest supersequence of X and Y Input: X = "HELLO", Y = "GEEK" Output: "GEHEKLLO" OR "GHEEKLLO" OR Any string that represents shortest supersequence of X and Y PROBLEM STATEMENT LINK: https://www.geeksforgeeks.org/print-shortest-common-supersequence/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/VDhRg-ZJTuc https://www.techtube.co.in/tutorials/29-strassens-matrix-multiplication 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/0oJyNmEbS4w/hqdefault.jpg 2.9 Strassens Matrix Multiplication Simple Matrix Multiplication Method Divide and Conquer Method Strassen's Matrix Multiplication Method PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/0oJyNmEbS4w https://www.techtube.co.in/tutorials/3-01-knapsack-recursive 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/kvyShbFVaY8/maxresdefault.jpg 3 01 Knapsack Recursive 0-1 Knapsack Problem solution using recursion(Overlapping Subproblems). Example: Given weights and values of n items, put these items in a knapsack of capacity W to get the maximum total value in the knapsack. In other words, given two integer arrays val[0..n-1] and wt[0..n-1] which represent values and weights associated with n items respectively. Also given an integer W which represents knapsack capacity, find out the maximum value subset of val[] such that sum of the weights of this subset is smaller than or equal to W. You cannot break an item, either pick the complete item, or don’t pick it (0-1 property). PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/0-1-knapsack-problem-dp-10/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/kvyShbFVaY8 https://www.techtube.co.in/tutorials/3-greedy-method-introduction 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/ARvQcqJ_-NY/hqdefault.jpg 3. Greedy Method - Introduction Introduction to Greedy Method What are Feasible and Optimal Solutions General Method of Greedy Examples to Explain Greedy Method PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/ARvQcqJ_-NY https://www.techtube.co.in/tutorials/3-sum-brute-better-optimal-with-codes 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/DhFh8Kw7ymk/maxresdefault.jpg 3 Sum | Brute - Better - Optimal with Codes Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 3 Sum | Brute - Better - Optimal with Codes https://takeuforward.org/plus/dsa/problems/3-sum Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/DhFh8Kw7ymk https://www.techtube.co.in/tutorials/30-longest-repeating-subsequence 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/hbTaCmQGqLg/maxresdefault.jpg 30 Longest repeating subsequence Longest Repeating Subsequence Given a string, print the longest repeating subsequence such that the two subsequence don’t have same string character at same position, i.e., any i’th character in the two subsequences shouldn’t have the same index in the original string. Example: Input: str = "aab" Output: "a" The two subsequence are 'a'(first) and 'a' (second). Note that 'b' cannot be considered as part of subsequence as it would be at same index in both. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/longest-repeated-subsequence/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/hbTaCmQGqLg https://www.techtube.co.in/tutorials/31-knapsack-problem-greedy-method 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/oTTzNMHM05I/hqdefault.jpg 3.1 Knapsack Problem - Greedy Method what is knapsack problem? how to apply greedy method Example problem Second Object profit/weight=1.66 PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/oTTzNMHM05I https://www.techtube.co.in/tutorials/31-sequence-pattern-matching 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/QVntmksK2es/maxresdefault.jpg 31 Sequence Pattern Matching Given two strings s and t, return true if s is a subsequence of t, or false otherwise. A subsequence of a string is a new string that is formed from the original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining characters. (i.e., "ace" is a subsequence of "abcde" while "aec" is not). Example 1: Input: s = "abc", t = "ahbgdc" Output: true Example 2: Input: s = "axc", t = "ahbgdc" Output: false Problem Link: https://leetcode.com/problems/is-subsequence/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/QVntmksK2es https://www.techtube.co.in/tutorials/32-job-sequencing-with-deadlines-greedy-method 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/zPtI8q9gvX8/hqdefault.jpg 3.2 Job Sequencing with Deadlines - Greedy Method Job Sequencing with Deadlines 2 problems are solved PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/zPtI8q9gvX8 https://www.techtube.co.in/tutorials/32-minimum-number-of-insertion-in-a-string-to-make-it-a-palindrome 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/AEcRW4ylm_c/maxresdefault.jpg 32 Minimum number of insertion in a string to make it a palindrome Minimum number of insertions to make a string palindrome Given a string, find the minimum number of characters to be inserted to form Palindrome string out of given string Examples: ab: Number of insertions required is 1. bab aa: Number of insertions required is 0. aa PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/minimum... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/AEcRW4ylm_c https://www.techtube.co.in/tutorials/33-matrix-chain-multiplication-introduction-identification-and-general-format 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/D7AFvtnDeMU/maxresdefault.jpg 33 Matrix chain multiplication Introduction Identification and General Format Matrix Chain Multiplication Given a sequence of matrices, find the most efficient way to multiply these matrices together. The problem is not actually to perform the multiplications, but merely to decide in which order to perform the multiplications. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/matrix-... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/D7AFvtnDeMU https://www.techtube.co.in/tutorials/33-optimal-merge-pattern-greedy-method 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/HHIc5JZyenI/hqdefault.jpg 3.3 Optimal Merge Pattern - Greedy Method What is Merging? What is Optimal Merge Pattern Problem ? It useful for Huffman Coding PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/HHIc5JZyenI https://www.techtube.co.in/tutorials/34-huffman-coding-greedy-method 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/co4_ahEDCho/hqdefault.jpg 3.4 Huffman Coding - Greedy Method How to Compress a Message using Fixed sized codes Variable sized codes (Huffman Coding) how to decode PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/co4_ahEDCho https://www.techtube.co.in/tutorials/34-matrix-chain-multiplication-recursive 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/kMK148J9qEE/maxresdefault.jpg 34 Matrix Chain Multiplication Recursive Matrix Chain Multiplication using Recursion Given a sequence of matrices, find the most efficient way to multiply these matrices together. The problem is not actually to perform the multiplications, but merely to decide in which order to perform the multiplications. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/matrix-chain-multiplication-dp-8/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/kMK148J9qEE https://www.techtube.co.in/tutorials/35-matrix-chain-multiplication-memoization 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/9uUVFNOT3_Y/maxresdefault.jpg 35 Matrix chain multiplication Memoization EDIT: SORRY FOR THE LAGGING AUDIO, WILL FIX IT SOON !! THANKS FOR YOUR PATIENCE. Matrix Chain Multiplication using Memoization Given a sequence of matrices, find the most efficient way to multiply these matrices together. The problem is not actually to perform the multiplications, but merely to decide in which order to perform the multiplications. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/matrix-chain-multiplication-dp-8/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/9uUVFNOT3_Y https://www.techtube.co.in/tutorials/35-prims-and-kruskals-algorithms-greedy-method 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/4ZlRH0eK-qQ/hqdefault.jpg 3.5 Prims and Kruskals Algorithms - Greedy Method Whats a Spanning Tree ? What is a Minimum Cost Spanning Tree? Prims Algorithm Kruskals Algorithm Problems for Spanning Tree PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/4ZlRH0eK-qQ https://www.techtube.co.in/tutorials/36-dijkstra-algorithm-single-source-shortest-path-greedy-method 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/XB4MIexjvY0/hqdefault.jpg 3.6 Dijkstra Algorithm - Single Source Shortest Path - Greedy Method Dijkstra Algorithm for Single Source Shortest Path Procedure Examples Time Complexity Drawbacks PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/XB4MIexjvY0 https://www.techtube.co.in/tutorials/36-palindrome-partitioning-recursive 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/szKVpQtBHh8/maxresdefault.jpg 36 Palindrome Partitioning Recursive Palindrome Partitioning using Recursion Given a string, a partitioning of the string is a palindrome partitioning if every substring of the partition is a palindrome. Example: “aba|b|bbabb|a|b|aba” is a palindrome partitioning of “ababbbabbababa”. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/palindr... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=2&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/szKVpQtBHh8 https://www.techtube.co.in/tutorials/37-palindrome-partitioning-memoization 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/fOUlNlawdAU/maxresdefault.jpg 37 Palindrome Partitioning Memoization Palindrome Partitioning using Memoization(Dynamic Programming) Given a string, a partitioning of the string is a palindrome partitioning if every substring of the partition is a palindrome. Example: “aba|b|bbabb|a|b|aba” is a palindrome partitioning of “ababbbabbababa”. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/palindr... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=2&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/fOUlNlawdAU https://www.techtube.co.in/tutorials/38-palindrome-partitioning-memoized-optimisation 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/9h10fqkI7Nk/maxresdefault.jpg 38 Palindrome Partitioning Memoized Optimisation Palindrome Partitioning Memoized Optimization Given a string, a partitioning of the string is a palindrome partitioning if every substring of the partition is a palindrome. Example: “aba|b|bbabb|a|b|aba” is a palindrome partitioning of “ababbbabbababa”. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/palindr... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/9h10fqkI7Nk https://www.techtube.co.in/tutorials/39-evaluate-expression-to-true-boolean-parenthesization-recursive 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/pGVguAcWX4g/maxresdefault.jpg 39 Evaluate Expression to True Boolean Parenthesization Recursive Evaluate Expression To True-Boolean Parenthesization Recursion Given a boolean expression with following symbols. Symbols 'T' --- true 'F' --- false And following operators filled between symbols Operators & ---boolean AND | --- boolean OR ^ --- boolean XOR Count the number of ways we can parenthesize the expression so that the value of expression evaluates to true. Example: Input: symbol[] = {T, F, T} operator[] = {^, &} Output: 2 The given expression is "T ^ F & T", it evaluates true in two ways "((T ^ F) & T)" and "(T ^ (F & T))" PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/boolean-parenthesization-problem-dp-37/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/pGVguAcWX4g https://www.techtube.co.in/tutorials/3sum-leetcode-15-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/jzZsG8n2R9A/maxresdefault.jpg 3Sum - Leetcode 15 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/three-integer-sum 0:00 - Conceptual 7:50 - Coding Solution Leetcode 15 #Coding #Programming #CodingInterview #leetcode #neetcode Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/jzZsG8n2R9A https://www.techtube.co.in/tutorials/4-01knapsack-memoization 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/fJbIuhs24zQ/maxresdefault.jpg 4 01Knapsack Memoization 0-1 Knapsack Problem solution using Memoization. Knapsack Memoization code requires only 3 changes in Knapsack Recursion code. Example: Given weights and values of n items, put these items in a knapsack of capacity W to get the maximum total value in the knapsack. In other words, given two integer arrays val[0..n-1] and wt[0..n-1] which represent values and weights associated with n items respectively. Also given an integer W which represents knapsack capacity, find out the maximum value subset of val[] such that sum of the weights of this subset is smaller than or equal to W. You cannot break an item, either pick the complete item, or don’t pick it (0-1 property). PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/0-1-knapsack-problem-dp-10/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/fJbIuhs24zQ https://www.techtube.co.in/tutorials/4-principle-of-optimality-dynamic-programming-introduction 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/5dRGRueKU3M/hqdefault.jpg 4 Principle of Optimality - Dynamic Programming introduction Introduction to Dynamic Programming Greedy vs Dynamic Programming Memoization vs Tabulation PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/5dRGRueKU3M https://www.techtube.co.in/tutorials/4-sum-brute-better-optimal-with-codes 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/eD95WRfh81c/maxresdefault.jpg 4 Sum | Brute - Better - Optimal with Codes Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 4 Sum | Brute - Better - Optimal with Codes https://takeuforward.org/plus/dsa/problems/4-sum Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/eD95WRfh81c https://www.techtube.co.in/tutorials/40-evaluate-expression-to-true-boolean-parenthesization-memoized 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/bzXM1Zond9U/maxresdefault.jpg 40 Evaluate Expression To True Boolean Parenthesization Memoized Evaluate Expression To True-Boolean Parenthesization Memoized Given a boolean expression with following symbols. Symbols 'T' --- true 'F' --- false And following operators filled between symbols Operators & --- boolean AND | --- boolean OR ^ --- boolean XOR Count the number of ways we can parenthesize the expression so that the value of expression evaluates to true. Example: Input: symbol[] = {T, F, T} operator[] = {^, &} Output: 2 The given expression is "T ^ F & T", it evaluates true in two ways "((T ^ F) & T)" and "(T ^ (F & T))" PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/boolean-parenthesization-problem-dp-37/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/bzXM1Zond9U https://www.techtube.co.in/tutorials/41-multistage-graph-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/9iE9Mj4m8jk/hqdefault.jpg 4.1 MultiStage Graph - Dynamic Programming Multistage Graph Problem Solved using Dynamic Programming Forward Method PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/9iE9Mj4m8jk https://www.techtube.co.in/tutorials/41-scrambled-string-recursive 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/SqA0o-DGmEw/maxresdefault.jpg 41 Scrambled String Recursive Scramble String using Recursion Given a string s1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively. Below is one possible representation of A = “great”: great / \ gr eat / \ / \ g r e at / \ a t To scramble the string, we may choose any non-leaf node and swap its two children. For example, if we choose the node “gr” and swap its two children, it produces a scrambled string “rgeat”. rgeat / \ rg eat / \ / \ r g e at / \ a t We say that “rgeat” is a scrambled string of “great”. Similarly, if we continue to swap the children of nodes “eat” and “at”, it produces a scrambled string “rgtae”. rgtae / \ rg tae / \ / \ r g ta e / \ t a We say that “rgtae” is a scrambled string of “great”. PROBLEM STATEMENT LINK:https://www.interviewbit.com/problems/scramble-string/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/SqA0o-DGmEw https://www.techtube.co.in/tutorials/411-multistage-graph-program-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/FcScLYJI42E/hqdefault.jpg 4.1.1 MultiStage Graph (Program) - Dynamic Programming Multistage graph Program and explanation PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/FcScLYJI42E https://www.techtube.co.in/tutorials/42-all-pairs-shortest-path-floyd-warshall-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/oNI0rf2P9gE/hqdefault.jpg 4.2 All Pairs Shortest Path (Floyd-Warshall) - Dynamic Programming Floyd-Warshall All Pairs Shortest Path Problem Dynamic Programming PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/oNI0rf2P9gE https://www.techtube.co.in/tutorials/42-scrambled-string-memoized 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/VyHEglhbm-A/maxresdefault.jpg 42 Scrambled String Memoized Scramble String using Memoization(Dynamic Programming) Given a string s1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively. Below is one possible representation of A = “great”: great / \ gr eat / \ / \ g r e at / \ a t To scramble the string, we may choose any non-leaf node and swap its two children. For example, if we choose the node “gr” and swap its two children, it produces a scrambled string “rgeat”. rgeat / \ rg eat / \ / \ r g e at / \ a t We say that “rgeat” is a scrambled string of “great”. Similarly, if we continue to swap the children of nodes “eat” and “at”, it produces a scrambled string “rgtae”. rgtae / \ rg tae / \ / \ r g ta e / \ t a We say that “rgtae” is a scrambled string of “great”. PROBLEM STATEMENT LINK:https://www.interviewbit.com/problems/scramble-string/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/VyHEglhbm-A https://www.techtube.co.in/tutorials/43-egg-dropping-problem-recursive 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/S49zeUjeUL0/maxresdefault.jpg 43 Egg Dropping Problem Recursive Egg Dropping using Recursion Problem statement: You are given N floor and K eggs. You have to minimize the number of times you have to drop the eggs to find the critical floor where critical floor means the floor beyond which eggs start to break. Assumptions of the problem: If egg breaks at ith floor then it also breaks at all greater floors. If egg does not break at ith floor then it does not break at all lower floors. Unbroken egg can be used again. Note: You have to find minimum trials required to find the critical floor not the critical floor. Example: Input: 4 2 Output: Number of trials when number of eggs is 2 and number of floors is 4: 3 PROBLEM STATEMENT LINK:https://www.includehelp.com/algorithm... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/S49zeUjeUL0 https://www.techtube.co.in/tutorials/43-matrix-chain-multiplication-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/prx1psByp7U/hqdefault.jpg 4.3 Matrix Chain Multiplication - Dynamic Programming Matrix Chain Multiplication Dynamic Programming PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/prx1psByp7U https://www.techtube.co.in/tutorials/431-matrix-chain-multiplication-program-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/eKkXU3uu2zk/hqdefault.jpg 4.3.1 Matrix Chain Multiplication (Program) - Dynamic Programming Matrix Chain Multiplication Program and Explanation to learn Dynamic Programming Approach visit https://youtu.be/prx1psByp7U Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/eKkXU3uu2zk https://www.techtube.co.in/tutorials/44-bellman-ford-algorithm-single-source-shortest-path-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/FtN3BYH2Zes/hqdefault.jpg 4.4 Bellman Ford Algorithm - Single Source Shortest Path - Dynamic Programming Bellman Ford Single Source Shortest Path Dynamic Programming Drawbacks PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/FtN3BYH2Zes https://www.techtube.co.in/tutorials/44-egg-dropping-problem-memoization 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/gr2NtY-2QUY/maxresdefault.jpg 44 Egg Dropping Problem Memoization Egg Dropping using Memoization(Dynamic Programming) Problem statement: You are given N floor and K eggs. You have to minimize the number of times you have to drop the eggs to find the critical floor where critical floor means the floor beyond which eggs start to break. Assumptions of the problem: If egg breaks at ith floor then it also breaks at all greater floors. If egg does not break at ith floor then it does not break at all lower floors. Unbroken egg can be used again. Note: You have to find minimum trials required to find the critical floor not the critical floor. Example: Input: 4 2 Output: Number of trials when number of eggs is 2 and number of floors is 4: 3 PROBLEM STATEMENT LINK:https://www.includehelp.com/algorithms/egg-dropping-problem-using-dynamic-programming.aspx Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/gr2NtY-2QUY https://www.techtube.co.in/tutorials/45-01-knapsack-two-methods-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/nLmhmB6NzcM/hqdefault.jpg 4.5 0/1 Knapsack - Two Methods - Dynamic Programming 0/1 Knapsack Problem Dynamic Programming Two Methods to solve the problem Tabulation Method Sets Method PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/nLmhmB6NzcM https://www.techtube.co.in/tutorials/45-egg-dropping-problem-memoization-optimization 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/jkygQmOiCCI/maxresdefault.jpg 45 Egg Dropping Problem Memoization Optimization Egg Dropping using Memoization Optimization Problem statement: You are given N floor and K eggs. You have to minimize the number of times you have to drop the eggs to find the critical floor where critical floor means the floor beyond which eggs start to break. Assumptions of the problem: If egg breaks at ith floor then it also breaks at all greater floors. If egg does not break at ith floor then it does not break at all lower floors. Unbroken egg can be used again. Note: You have to find minimum trials required to find the critical floor not the critical floor. Example: Input: 4 2 Output: Number of trials when number of eggs is 2 and number of floors is 4: 3 PROBLEM STATEMENT LINK:https://www.includehelp.com/algorithms/egg-dropping-problem-using-dynamic-programming.aspx Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/jkygQmOiCCI https://www.techtube.co.in/tutorials/451-01-knapsack-problem-program-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/zRza99HPvkQ/hqdefault.jpg 4.5.1 0/1 Knapsack Problem (Program) - Dynamic Programming 0/1 Knapsack Problem explained using Program PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/zRza99HPvkQ https://www.techtube.co.in/tutorials/46-dynamic-programming-on-trees-introduction-and-identification 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/qZ5zayHSH2g/maxresdefault.jpg 46 Dynamic programming on Trees Introduction and Identification DP on Trees-Introduction and Identification Dynamic Programming(DP) is a technique to solve problems by breaking them down into overlapping sub-problems which follows the optimal substructure. There are various problems using DP like subset sum, knapsack, coin change etc. DP can also be applied on trees to solve some specific problems. We define functions for nodes of the trees, which we calculate recursively based on children of a nodes. One of the states in our DP usually is a node i, denoting that we are solving for the subtree of node i. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/dynamic... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=2&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/qZ5zayHSH2g https://www.techtube.co.in/tutorials/46-optimal-binary-search-tree-successful-search-only-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/vLS-zRCHo-Y/hqdefault.jpg 4.6 Optimal Binary Search Tree (Successful Search Only) - Dynamic Programming This problem is a partial, considering only successful search. What is Binary Search Tree? What is Optimal Binary Search Tree? How to create Optimal Binary Search Tree by applying Dynamic Programming PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/vLS-zRCHo-Y https://www.techtube.co.in/tutorials/462-new-optimal-binary-search-tree-successful-and-unsuccessful-probability-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/wAy6nDMPYAE/hqdefault.jpg 4.6.2 [New] Optimal Binary Search Tree Successful and Unsuccessful Probability - Dynamic Programming Optimal Binary Search Tree using Successful and Unsuccessful Search Probabilities​ PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/wAy6nDMPYAE https://www.techtube.co.in/tutorials/47-dynamic-programming-on-tree-general-syntax 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/d1u2t018Kjg/maxresdefault.jpg 47 Dynamic Programming on Tree General Syntax General Syntax of Dp on Tree In this video we will learn about syntax of DP on Tree PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/dynamic... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=1&t=0s&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/d1u2t018Kjg https://www.techtube.co.in/tutorials/47-new-traveling-salesman-problem-dynamic-programming-using-formula 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/Q4zHb-Swzro/hqdefault.jpg 4.7 [New] Traveling Salesman Problem - Dynamic Programming using Formula Traveling Salesman Problem - Dynamic Programming - Explained using Formula PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/Q4zHb-Swzro https://www.techtube.co.in/tutorials/48-diameter-of-a-binary-tree 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/zmPj_Ee3B8c/maxresdefault.jpg 48 Diameter of a Binary Tree Diameter of Tree Given a binary tree, you need to compute the length of the diameter of the tree. The diameter of a binary tree is the length of the longest path between any two nodes in a tree. This path may or may not pass through the root. Example: Given a binary tree 1 / \ 2 3 / \ 4 5 Return 3, which is the length of the path [4,2,1,3] or [5,2,1,3]. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/diamete... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=2 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/zmPj_Ee3B8c https://www.techtube.co.in/tutorials/48-reliability-design-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/uJOmqBwENB8/hqdefault.jpg 4.8 Reliability Design - Dynamic Programming Reliability Design System Design PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/uJOmqBwENB8 https://www.techtube.co.in/tutorials/49-longest-common-subsequence-lcs-recursion-and-dynamic-programming 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/sSno9rV8Rhg/hqdefault.jpg 4.9 Longest Common Subsequence (LCS) - Recursion and Dynamic Programming Longest Common Subsequence Problem using 1. Recursion 2. Memoization 3. Dynamic Programming PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/sSno9rV8Rhg https://www.techtube.co.in/tutorials/49-maximum-path-sum-from-any-node-to-any-node 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Osz-Vwer6rw/maxresdefault.jpg 49 Maximum Path Sum | From any node to any node Given a non-empty binary tree, find the maximum path sum. For this problem, a path is defined as any sequence of nodes from some starting node to any node in the tree along the parent-child connections. The path must contain at least one node and does not need to go through the root. Example 1: Input: [1,2,3] 1 / \ 2 3 Output: 6 Example 2: Input: [-10,9,20,null,null,15,7] -10 / \ 9 20 / \ 15 7 Output: 42 PROBLEM STATEMENT LINK: https://leetcode.com/problems/binary-tree-maximum-path-sum/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/Osz-Vwer6rw https://www.techtube.co.in/tutorials/4sum-leetcode-18-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/EYeR-_1NRlQ/maxresdefault.jpg 4Sum - Leetcode 18 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/4sum 0:00 - Read the problem 1:15 - Drawing Explanation 6:57 - Coding Explanation leetcode 18 #coding #interview #python https://www.youtube.com/embed/EYeR-_1NRlQ https://www.techtube.co.in/tutorials/5-01-knapsack-top-down-dp 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ntCGbPMeqgg/maxresdefault.jpg 5 01 Knapsack Top Down DP 0-1 Knapsack Problem solution using Tabulataion Method. TOP DOWN APPROACH Example: Given weights and values of n items, put these items in a knapsack of capacity W to get the maximum total value in the knapsack. In other words, given two integer arrays val[0..n-1] and wt[0..n-1] which represent values and weights associated with n items respectively. Also given an integer W which represents knapsack capacity, find out the maximum value subset of val[] such that sum of the weights of this subset is smaller than or equal to W. You cannot break an item, either pick the complete item, or don’t pick it (0-1 property). PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/0-1-knapsack-problem-dp-10/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/ntCGbPMeqgg https://www.techtube.co.in/tutorials/50-maximum-path-sum-from-leaf-node-to-leaf-node 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ArNyupe-XH0/maxresdefault.jpg 50 Maximum Path sum | From leaf node to leaf node Maximum path sum from leaf to leaf If a binary tree is given, how to find Maximum path sum between two leaves of binary tree. All should be numbers The maximum sum path may or may not go through root. For example, in the following binary tree, the maximum sum is 27(3 + 6 + 9 + 0 – 1 + 10). Expected time complexity is O(n). -15 / \ 5 6 / \ / \ -8 1 3 9 / \ \ 2 6 0 / \ 4 -1 / 10 PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/find-ma... Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=2&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/ArNyupe-XH0 https://www.techtube.co.in/tutorials/51-graph-traversals-bfs-dfs-breadth-first-search-and-depth-first-search 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/pcKY4hjDrxk/hqdefault.jpg 5.1 Graph Traversals - BFS & DFS -Breadth First Search and Depth First Search Breadth First Search Depth First Search PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/pcKY4hjDrxk https://www.techtube.co.in/tutorials/52-articulation-point-and-biconnected-components 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/jFZsDDB0-vo/hqdefault.jpg 5.2 Articulation Point and Biconnected Components Articulation point is a vertex in a graph, if it is removed, graph will split into components. PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/jFZsDDB0-vo https://www.techtube.co.in/tutorials/6-identification-of-knapsack-problems-and-introduction 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/iBnWHZmlIyY/maxresdefault.jpg 6 Identification of Knapsack Problems and Introduction Identification of Knapsack Problem. Identify the problem that ii belons to Knapsack or not PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/0-1-knapsack-problem-dp-10/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/iBnWHZmlIyY https://www.techtube.co.in/tutorials/6-introduction-to-backtracking-brute-force-approach 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/DKCbsiDBN6c/hqdefault.jpg 6 Introduction to Backtracking - Brute Force Approach Introduction to Backtracking PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/DKCbsiDBN6c https://www.techtube.co.in/tutorials/61-n-queens-problem-using-backtracking 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/xFv_Hl4B83A/hqdefault.jpg 6.1 N Queens Problem using Backtracking N-Queens problem state space tree PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/xFv_Hl4B83A https://www.techtube.co.in/tutorials/62-sum-of-subsets-problem-backtracking 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/kyLxTdsT8ws/hqdefault.jpg 6.2 Sum Of Subsets Problem - Backtracking Sum of Subsets problem PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/kyLxTdsT8ws https://www.techtube.co.in/tutorials/63-graph-coloring-problem-backtracking 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/052VkKhIaQ4/hqdefault.jpg 6.3 Graph Coloring Problem - Backtracking CORRECTION: at the end of this video, in a MAP, region 1 is also Adjacent to region 4 Graph coloring problem using Backtracking PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/052VkKhIaQ4 https://www.techtube.co.in/tutorials/64-hamiltonian-cycle-backtracking 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/dQr4wZCiJJ4/hqdefault.jpg 6.4 Hamiltonian Cycle - Backtracking Hamiltonian Cycle using Backtracking PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/dQr4wZCiJJ4 https://www.techtube.co.in/tutorials/7-branch-and-bound-introduction 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/3RBNPc0_Q6g/hqdefault.jpg 7 Branch and Bound Introduction Introduction to Branch and Bound State Space Trees FIFO Branch and Bound LIFO Branch and Bound LC Branch and Bound PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/3RBNPc0_Q6g https://www.techtube.co.in/tutorials/7-subset-sum-problem 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/_gPcYovP7wc/maxresdefault.jpg 7 Subset Sum Problem Subset Sum Problem(Dynamic Programming) Given a set of non-negative integers, and a value sum, determine if there is a subset of the given set with sum equal to given sum. Example: Input: set[] = {3, 34, 4, 12, 5, 2}, sum = 9 Output: True //There is a subset (4, 5) with sum 9. PROBLEM STATEMENT LINK:https://www.geeksforgeeks.org/subset-sum-problem-dp-25/ Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/_gPcYovP7wc https://www.techtube.co.in/tutorials/71-job-sequencing-with-deadline-branch-and-bound 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/M7Fl_z7_J2k/hqdefault.jpg 7.1 Job Sequencing with Deadline - Branch and Bound Job Sequencing using Branch and Bound PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/M7Fl_z7_J2k https://www.techtube.co.in/tutorials/72-01-knapsack-using-branch-and-bound 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/yV1d-b_NeK8/hqdefault.jpg 7.2 0/1 Knapsack using Branch and Bound 0/1 Knapsack using Branch and Bound PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/yV1d-b_NeK8 https://www.techtube.co.in/tutorials/73-traveling-salesman-problem-branch-and-bound 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/1FEP_sNb62k/hqdefault.jpg 7.3 Traveling Salesman Problem - Branch and Bound Traveling Salesman Problem - Branch and Bound PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/1FEP_sNb62k https://www.techtube.co.in/tutorials/8-k-closest-points-to-origin 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/XC4EotTewro/maxresdefault.jpg 8 K Closest Points To Origin Given a list of points on the 2-D plane and an integer K. The task is to find K closest points to the origin and print them. Note: The distance between two points on a plane is the Euclidean distance. Example: Input : point = [[3, 3], [5, -1], [-2, 4]], K = 2 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/XC4EotTewro https://www.techtube.co.in/tutorials/8-np-hard-and-np-complete-problems 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/e2cF8a5aAhE/hqdefault.jpg 8. NP-Hard and NP-Complete Problems P vs NP Satisfiability Reduction NP-Hard vs NP-Complete P=NP PATREON : https://www.patreon.com/bePatron?u=20475192 CORRECTION: Ignore Spelling Mistakes Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/e2cF8a5aAhE https://www.techtube.co.in/tutorials/81-np-hard-graph-problem-clique-decision-problem 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/qZs767KQcvE/hqdefault.jpg 8.1 NP-Hard Graph Problem - Clique Decision Problem NP-Hard Graph Problem - Clique Decision Problem CDP is proved as NP-Hard PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/qZs767KQcvE https://www.techtube.co.in/tutorials/9-connect-ropes-to-minimise-the-cost 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/_k_c9nqzKN0/maxresdefault.jpg 9 Connect Ropes to Minimise the Cost There are given n ropes of different lengths, we need to connect these ropes into one rope. The cost to connect two ropes is equal to sum of their lengths. We need to connect the ropes with minimum cost. For example if we are given 4 ropes of lengths 4, 3, 2 and 6. We can connect the ropes in following ways. 1) First connect ropes of lengths 2 and 3. Now we have three ropes of lengths 4, 6 and 5. 2) Now connect ropes of lengths 4 and 5. Now we have two ropes of lengths 6 and 9. 3) Finally connect the two ropes and all ropes have connected. Total cost for connecting all ropes is 5 + 9 + 15 = 29. This is the optimized cost for connecting ropes. Other ways of connecting ropes would always have same or more cost. For example, if we connect 4 and 6 first (we get three strings of 3, 2 and 10), then connect 10 and 3 (we get two strings of 13 and 2). Finally we connect 13 and 2. Total cost in this way is 10 + 13 + 15 = 38. . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/_k_c9nqzKN0 https://www.techtube.co.in/tutorials/91-knuth-morris-pratt-kmp-string-matching-algorithm 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/V5-7GzOfADQ/hqdefault.jpg 9.1 Knuth-Morris-Pratt KMP String Matching Algorithm In P3, b is also matching , lps should be 0 1 0 0 1 0 1 2 3 0 Naive Algorithm Drawbacks of Naive Algorithm Prefix and Suffix of Pattern KMP Algorithm PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/V5-7GzOfADQ https://www.techtube.co.in/tutorials/92-rabin-karp-string-matching-algorithm 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/qQ8vS2btsxI/hqdefault.jpg 9.2 Rabin-Karp String Matching Algorithm Rabin-Karp String Matching Algorithm It is useful for matching multiple patterns simultaneously. PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/qQ8vS2btsxI https://www.techtube.co.in/tutorials/accounts-merge-leetcode-721-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/6st4IxEF-90/maxresdefault.jpg Accounts Merge - Leetcode 721 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/accounts-merge 0:00 - Read the problem 0:50 - Drawing Explanation 10:10 - Coding Explanation leetcode 721 #neetcode #leetcode #python https://www.youtube.com/embed/6st4IxEF-90 https://www.techtube.co.in/tutorials/add-binary-leetcode-67-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/keuWJ47xG8g/maxresdefault.jpg Add Binary - Leetcode 67 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/add-binary 0:00 - Read the problem 0:25 - Drawing Explanation 2:20 - Coding Explanation leetcode 67 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/keuWJ47xG8g https://www.techtube.co.in/tutorials/add-two-numbers-leetcode-2-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/wgFPrzTjm7s/maxresdefault.jpg Add Two Numbers - Leetcode 2 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem link: https://neetcode.io/problems/add-two-numbers 0:00 - Visual Explanation 5:30 - Coding Solution Leetcode 2 #amazon #interview #leetcode Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/wgFPrzTjm7s https://www.techtube.co.in/tutorials/alien-dictionary-topological-sort-leetcode-269-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/6kTZYvNNyps/maxresdefault.jpg Alien Dictionary - Topological Sort - Leetcode 269 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/foreign-dictionary 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 0:00 - Read the problem 4:46 - Drawing Explanation 15:46 - Coding Explanation leetcode 269 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #topological #sort #python https://www.youtube.com/embed/6kTZYvNNyps https://www.techtube.co.in/tutorials/asteroid-collision-stack-leetcode-735 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/LN7KjRszjk4/maxresdefault.jpg Asteroid Collision - Stack - Leetcode 735 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/asteroid-collision 0:00 - Read the problem 3:00 - Drawing Explanation 8:57 - Coding Solution leetcode 735 #stack #lyft #python https://www.youtube.com/embed/LN7KjRszjk4 https://www.techtube.co.in/tutorials/asymptotic-notations-simplified 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/ddsP7NecEBk/hqdefault.jpg Asymptotic Notations - Simplified Asymptotic Notations. big Oh O notation, Omega and Theta Notation. A very simple and easy way to understand Asymptotic notations https://www.youtube.com/embed/ddsP7NecEBk https://www.techtube.co.in/tutorials/avl-trees-tutorial-self-balancing-binary-search-trees 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/CVA85JuJEn0/maxresdefault.jpg AVL Trees Tutorial | Self Balancing Binary Search Trees This is the second tutorial in the complete tree playlist of the DSA bootcamp for interview preparation: https://www.youtube.com/playlist?list=PL9gnSGHSqcnqfctdbCQKaw5oZ9Up2cmsq. In this video, we delve into AVL trees, which are a type of self-balancing binary tree, and a crucial data structure for coding interviews. You will learn about the inner workings and use cases of AVL trees and follow along as we implement them from scratch, backed by clear explanations and practical examples. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - AVL code: https://replit.com/@KunalsReplit/Trees-2-AVL - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ======================================================== Timestamps: 00:00:00 Introduction 00:03:15 Problem with BST 00:12:48 Self balancing binary trees 00:15:31 AVL trees theory + algorithm 00:34:36 Example walkthrough 00:40:57 Time complexity 00:42:22 Code 01:04:24 Closing remarks #trees #placements #dsa https://www.youtube.com/embed/CVA85JuJEn0 https://www.techtube.co.in/tutorials/backtracking-introduction-maze-problems-theory-code-tips 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/zg5v2rlV1tM/maxresdefault.jpg Backtracking Introduction + Maze Problems - Theory + Code + Tips This video covers an introduction to #backtracking, along with maze path problems. An important video for interviews covering complete theory + code + tips. Register now for the Battlesnake fall league: https://play.battlesnake.com/league/fall-league-2021/ Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00:00 Teaser 0:00:31 Introduction 0:01:51 Maze Problems 0:03:11 Q1 : Counting Paths 0:18:08 Code for Q1 0:20:58 Q2 : Printing Paths 0:27:00 Code for Q2 0:32:18 Q3 : Including Diagonal Paths 0:35:30 Q4 : Maze with Obstacles 0:40:43 Code for Q4 0:47:55 Q5 : Including All Paths 0:51:51 Explanation for Q5 1:07:04 Backtracking Introduction 1:11:01 Code for Q5 1:14:43 Q6 : Print Matrix and Paths 1:20:44 Code for Q6 1:25:37 Battlesnake Fall League 1:27:52 Outro #recursion #placement #dsa #interviews https://www.youtube.com/embed/zg5v2rlV1tM https://www.techtube.co.in/tutorials/balanced-binary-tree-leetcode-110-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/QfJsau0ItOY/maxresdefault.jpg Balanced Binary Tree - Leetcode 110 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/balanced-binary-tree 0:00 - Read the problem 1:40 - Drawing Explanation 9:00 - Coding Explanation leetcode 110 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #binary #tree #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/QfJsau0ItOY https://www.techtube.co.in/tutorials/baseball-game-leetcode-682-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Id_tqGdsZQI/maxresdefault.jpg Baseball Game - Leetcode 682 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/baseball-game 0:00 - Read the problem 2:45 - Drawing Explanation 4:22 - Coding Explanation leetcode 682 #amazon #interview #python https://www.youtube.com/embed/Id_tqGdsZQI https://www.techtube.co.in/tutorials/basic-maths-for-dsa-euclidean-algorithm-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/1xNbjMdbjug/maxresdefault.jpg Basic Maths for DSA | Euclidean Algorithm | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/1xNbjMdbjug https://www.techtube.co.in/tutorials/beauty-of-hypothesis-and-induction 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/qDJJBZAIXIw/maxresdefault.jpg Beauty of Hypothesis And Induction Remember its your recursive function and you can do anything with it !! Just design it carefully ! Notes and Code: https://www.patreon.com/posts/38605516 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/qDJJBZAIXIw https://www.techtube.co.in/tutorials/become-a-fullstack-developer-from-scratch-full-beginners-tutorial 2026-09-04 weekly 0.7 https://i.ytimg.com/vi/LzMnsfqjzkA/maxresdefault.jpg Become a Fullstack Developer from Scratch – Full Beginner’s Tutorial Learn full-stack web development from the ground up in one complete course. Try the interactive expanded version here: https://scrimba.com/fullstack-path-c0fullstack?via=scrimbafcc Build hireable skills in the JavaScript ecosystem, including HTML, CSS, JavaScript, React, Node.js, Next.js, TypeScript, databases, and testing. You can study this course interactively on Scrimba. Code is available on the Scrimba course page for each lesson. Challenge code on GitHub: https://github.com/scrimba/learn-fullstack-development Scrimba on YouTube: https://www.youtube.com/c/Scrimba ⭐️ Contents ⭐️ - 00:00:00 Introduction - 00:01:27 Html and CSS - 01:04:19 Intro to CSS - 02:21:01 Building a business card - 03:32:02 Space exploration - 04:17:21 Birthday website - 05:22:25 Solo project hometown homepage - 05:30:38 Build a counter app - 06:46:17 Javascript challenges part 1 - 07:07:22 Git and Github basics - 07:19:59 Build a blackjack game - 10:15:19 Javascript challenges part 2 - 10:41:09 Build a Chrome extension - 13:34:25 Javascript challenges part 3 - 14:00:48 Command line basics - 14:46:27 Essential Git and Github skills - 15:12:55 Advanced foundations - 16:27:18 Methods and loops. Watch here: https://youtu.be/m6xM7Ezxn1E - 17:41:43 Functions expressions and parameter - 18:26:57 Asynchronous javascript and APIs - 19:42:29 AI engineering fundamentals - 21:19:42 Build a Node API - 22:42:51 Build a fullstack Node app - 24:52:41 Introduction to databases - 25:13:25 Writing SQL queries - 26:30:04 Static pages - 28:48:33 Data driven - 31:03:00 React state - 36:17:02 Side effects - 38:05:49 Capstone project - 40:12:26 Typescript fundamentals - 42:15:21 Typescript in React - 43:06:47 Build a Next.js app - 45:08:21 Rendering strategies and more Correction: 16:27:18 "Advanced foundations" accidentally repeated. Access "Methods and Loops" here: https://youtu.be/m6xM7Ezxn1E https://www.youtube.com/embed/LzMnsfqjzkA https://www.techtube.co.in/tutorials/bellman-ford-cheapest-flights-within-k-stops-leetcode-787-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/5eIK3zUdYmE/maxresdefault.jpg Bellman-Ford - Cheapest Flights within K Stops - Leetcode 787 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/cheapest-flight-path 0:00 - Read the problem 3:55 - Drawing Explanation 15:28 - Coding Explanation leetcode 787 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #bellman #ford #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/5eIK3zUdYmE https://www.techtube.co.in/tutorials/best-data-structures-algorithms-dsa-course-clear-any-faang-interview 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/rZ41y93P2Qo/maxresdefault.jpg Best Data Structures & Algorithms (DSA) Course - Clear Any FAANG Interview! - Course playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Course website: https://www.techwithkunal.com/courses/dsa Announcing the best Data Structures & Algorithms course that you can watch on YouTube right now. With no prerequisites, you can go from 0 to advanced and clear your coding rounds of FAANG companies with ease. I don't just teach you about Data Structures & Algorithms. I teach you how to think. The course is designed in such a way that will elevate your thought process, encourage you to visualise problems and identify patterns in your coding interviews. With no prerequisites, even non-programmers can start this course and be interview ready. We also implement every single data structures & algorithm so that you can understand how it works internally. And ofcourse, lots of interview questions from LeetCode easy to hard. It also includes notes, assignments, and LIVE Discord doubt support. ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 00:00 Introduction 01:27 Overview 02:44 Shoutouts 03:32 Teaching Methodology 06:20 Syllabus 11:16 Features 11:44 Newsletter 12:02 Upcoming Courses 13:22 Important Links 14:44 Outro #dsa #course #placement https://www.youtube.com/embed/rZ41y93P2Qo https://www.techtube.co.in/tutorials/best-time-to-buy-and-sell-a-stock-ii-leetcode-122-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/3SJ3pUkPQMc/maxresdefault.jpg Best Time to Buy and Sell a Stock II - Leetcode 122 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/best-time-to-buy-and-sell-stock-ii 0:00 - Read the problem 1:10 - Drawing Explanation 4:52 - Coding Explanation leetcode 122 #sliding #window #python https://www.youtube.com/embed/3SJ3pUkPQMc https://www.techtube.co.in/tutorials/best-time-to-buy-and-sell-stock-with-cooldown-leetcode-309-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/I7j0F7AHpb8/maxresdefault.jpg Best Time to Buy and Sell Stock with Cooldown - Leetcode 309 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode CODE AVAILABLE HERE 👉 https://github.com/neetcode-gh/leetcode/blob/main/309-Best-Time-To-Buy-and-Sell-Stock-With-Cooldown.py ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/buy-and-sell-crypto-with-cooldown 0:00 - Read the problem 2:24 - Drawing Explanation 8:47 - Coding Explanation leetcode 309 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #buy #stock #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/I7j0F7AHpb8 https://www.techtube.co.in/tutorials/bfs-dfs-simplified 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/kyUpc_5705s/hqdefault.jpg BFS DFS - Simplified Breadth First Search and Depth First Search Traversal Methods of a Graph. with valid and invalid examples. https://www.youtube.com/embed/kyUpc_5705s https://www.techtube.co.in/tutorials/big-announcement-the-best-dsa-patterns-course-next-babua-star-dipti-verma 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Iiy8NPAnYIA/maxresdefault.jpg Big Announcement 📢 The Best DSA Patterns Course | Next Babua Star-Dipti Verma🌟 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Babua log, today I’m launching something VERY special for our community — Babua Star ⭐ This is not just a badge… This is respect. This is recognition. This is family. If you consistently support the Babua DSA Patterns Course — 💛 Post daily on LinkedIn about each day’s lecture 💛 Share learnings, tag me, inspire others 💛 Help others by liking, commenting, motivating them 💛 Support on YouTube through comments and discussions …then you might become the next Babua Star. 🌟 Benefits for Babua Star (Exclusive & Limited) If selected, you get: 🔹 1:1 Mentorship for 1 Week Direct guidance to supercharge your DSA + career journey. 🔹 1-Hour Personal Call with a MAANG Engineer Ask anything — interviews, system design, resume, growth… A golden opportunity. 🔹 Daily 15-Minute Check-ins for 1 Week To keep you accountable, consistent, and unstoppable. 🔹 Entry into the “Babua Elite Club” A community inside the community — the most consistent, most dedicated, most inspiring learners. Once you’re in and stay consistent… you stay FOREVER. ❤️ Why Babua Star Exists? Because I want to reward consistency, effort, and community support. Our course is free. Our community is strong. And those who help build this movement deserve something special. This initiative is my way of saying: “Thank you, Babua. I see your hard work.” 🚀 How to Become a Babua Star? ✔ Post daily on LinkedIn about each day’s lecture ✔ Tag me + use the hashtag #BabuaDSA ✔ Support others’ posts ✔ Leave meaningful comments on YouTube ✔ Be consistent ✔ Be kind ✔ Be helpful I pick Babua Stars every month ❤️ 🎯 Join the movement. Let’s make 2025 the biggest DSA learning revolution on YouTube. Stay consistent, Babua. Stay disciplined. And maybe… you’ll soon be a Babua Star 🌟 CHAPTERS 00:00 Introduction 00:15 Best DSA Pattern-wise Course 01:54 What is Babua Star initiative 02:38 Benefits for Babua Star 03:35 Our second Babua Star 05:24 Why is Dipti Verma selected as Babua Star 06:01 Our Second Babua Mentor 07:32 Next Babua Star announcement 08:04 Thank you everyone 08:59 Where to get Handwritten notes 09:241 Conclusion #BabuaStar #BabuaDSAPatterns #DSAPatternsCourse #CTOBhaiya #DSA2025 #LearnDSA #DSACommunity #BabuaEliteClub #CodingJourney #DailyLinkedInPosting #SupportCreators #FreeDSACourse #DSALectures #CodingMotivation #ConsistencyIsKey #MAANGPrep #FAANGPrep #SoftwareEngineeringJourney #LinkedInCommunity #YouTubeCommunity #DSARevolution #IndianCoders #CodingInHindi #TechCareerGrowth #CodingConsistency #DailyLearningChallenge Your Queries: Babua Star Babua DSA Patterns Course 2025 CTO Bhaiya DSA DSA patterns course free DSA course Hindi DSA community initiative DSA motivation consistent coding challenge MAANG engineer mentorship FAANG preparation Hindi coding interview prep LinkedIn daily posting challenge Babua Elite Club DSA accountability group DSA lectures Hindi software engineering growth Indian coders community DSA challenge 2025 CTO Bhaiya mentorship ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Iiy8NPAnYIA https://www.techtube.co.in/tutorials/big-announcement-we-are-launching-our-first-paid-course-softwareengineering 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ykz0Q1UuGuA/maxresdefault.jpg 🔥 Big Announcement 🎉 We are launching our "FIRST PAID" Course #softwareengineering Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course 🚀 CTO Bhaiya is Launching the FIRST EVER Paid Course! After teaching thousands of students for free on YouTube, CTO Bhaiya is officially launching his first paid Babua-styled course on 📅 January 15 — and we’re starting with the most important foundation of Computer Science 👇 🔥 Time & Space Complexity — Babua Style This is not a boring theoretical course. This is how complexity is actually understood, visualized, and used in interviews & real engineering. 📘 What’s Special About This Course? ✅ Zero jargon, 100% clarity ✅ Interview-oriented thinking ✅ Real examples + intuition building ✅ Explained in Babua Style — simple, relatable, practical 🧠 Why Paid Now? College fees: ₹10–20 Lakhs ❌ Typical online courses: ₹5K–₹10K ❌ 👉 Babua-Styled Courses: 💰 Just ₹100–₹150 per course Because quality education should be accessible, not expensive. 📆 Big Announcement 📌 A new paid course will be launched every 15 days Covering: DSA Foundations Advanced Patterns System Design Real-world Engineering Thinking 🎟️ How to Access These Courses? 👉 Buy YouTube Channel Membership That’s it. ✔️ Members-only videos ✔️ Dedicated discussion groups ✔️ Direct learning with the Babua community ✔️ Structured, distraction-free learning 👥 Dedicated Groups Every paid course comes with: 📢 Dedicated student groups 🤝 Peer learning & discussions 🧑‍🏫 Guidance from CTO Bhaiya’s ecosystem If you’ve ever felt: ❌ DSA is confusing ❌ Complexity feels scary ❌ College didn’t teach this properly 👉 This course is for you. 📅 Launch Date: January 15 🎯 Course: Time & Space Complexity (Babua Style) 🔓 Access: YouTube Membership Welcome to the next phase of CTO Bhaiya 🚀 Let’s learn like engineers — not exam machines 💪 👇 Join the YouTube Membership & Start Early Hashtags: #CTOBhaiya #BabuaStyle #TimeAndSpaceComplexity #DSA #DSACourse #CodingInterview #DataStructures #Algorithms #BigO #BigONotation #ComputerScience #EngineeringStudents #Placements #SoftwareEngineering #AffordableEducation #LearnCoding #CodingForBeginners #ProgrammingBasics #YouTubeMembership #PaidCourse #IndianTech #FAANGPreparation #TechEducation #CSFundamentals #CodingJourney Your Queries: CTO Bhaiya Babua Style Time and Space Complexity Big O Notation DSA Course Coding Interviews Data Structures and Algorithms Algorithms Basics Computer Science Fundamentals Affordable Coding Course YouTube Membership Course Indian Coding Education Placement Preparation Software Engineering Basics Learn DSA from Scratch Engineering Students India Interview Preparation DSA CHAPTERS 00:00 - Introduction & Recap 10:00 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: LinkedIn : https://www.linkedin.com/in/anuj-kumar-9a188968/ Instagram : https://www.instagram.com/mr.anuj.brandy/ Discord : https://discord.com/invite/bbJXxFcauK ========================== https://www.youtube.com/embed/ykz0Q1UuGuA https://www.techtube.co.in/tutorials/biginteger-bigdecimal-handling-large-numbers-in-java 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/lHtoypC-4Ps/maxresdefault.jpg BigInteger & BigDecimal - Handling Large Numbers in Java In this tutorial, we will learn how to handle large numbers in Java using the BigInteger and BigDecimal classes. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Large numbers code: https://replit.com/@KunalsReplit/LargeNumbers - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com #dsa #java #maths https://www.youtube.com/embed/lHtoypC-4Ps https://www.techtube.co.in/tutorials/binary-search-algorithm-theory-code 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/f6UU7V3szVw/maxresdefault.jpg Binary Search Algorithm - Theory + Code This is the first video of a 2 part series on binary search. Here we discuss theory of the algorithm, compare it with linear search, derive the complexity, implement the code and cover order-agnostic binary search as well. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00 Introduction 0:57 #DSAwithKunal 2:35 What is Binary Search? 7:20 Binary Search Algorithm 21:10 Why Binary Search? 29:21 Code for Binary Search 41:48 Order-Agnostic Binary Search 49:00 Code for Order-Agnostic Binary Search 57:42 Outro #searching #placement #dsa #interviews https://www.youtube.com/embed/f6UU7V3szVw https://www.techtube.co.in/tutorials/binary-search-in-2d-arrays 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/enI_KyGLYPo/maxresdefault.jpg Binary Search in 2D Arrays In this video we cover searching in 2D arrays/matrices and how you can apply binary search to get optimal solutions. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 00:00 Introduction 01:03 Searching in Matrices 05:06 Q1 : Row Column Matrix 17:28 Code for Q1 22:41 Q2 : Sorted Matrix 35:47 Code for Q2 56:37 Outro #binarysearch #placement #dsa #interviews https://www.youtube.com/embed/enI_KyGLYPo https://www.techtube.co.in/tutorials/binary-search-interview-questions-google-facebook-amazon 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/W9QJ8HaRvJQ/maxresdefault.jpg Binary Search Interview Questions - Google, Facebook, Amazon In this video, we cover interview questions of binary search from Google, Facebook, Amazon and more. Starting with LeetCode easy till hard, in the most easy to understand manner, with complete code and walkthrough. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00 Preview 4:52 Introduction ‌‍‍‍‌‌‍‍ ‌‍‍‌‌‌‌‍ ‌‍‍‌‍‍‌‍ ‌‍‍‌‍‌‍‌ ‌‍‍‌‍‍‍‌ ‌‌‍‍‌‌‌‌ ‌‌‍‍‍‌‌‌ 8:41 When do we apply Binary Search? 10:25 Q1 : Ceiling of a Number 32:58 Q2 : Floor of a Number 40:40 Q1 and Q2 46:55 Q3 : Smallest Letter 1:02:13 Q4 : First and Last Position in Sorted Array 1:28:03 Q5 : Position of an Element in Infinite Sorted Array 1:58:00 Q6 : Peak Index in Mountain Array 2:18:22 Why this bootcamp is the best? 2:20:37 Q7 : Find in Mountain Array 2:29:55 Q8 : Search in Rotated Sorted Array 2:45:03 Correction: [4 5 6 0 1 2 3] 2:48:40 Q8 : Search in Rotated Sorted Array 3:10:46 Q9 : Rotated Binary Search in Array with Duplicate Values 3:20:40 Q10 : Rotation Count 3:28:48 Q11 : Split Array Largest Sum #binarysearch #placement #dsa #interviews https://www.youtube.com/embed/W9QJ8HaRvJQ https://www.techtube.co.in/tutorials/binary-search-leetcode-704-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/s4DPM8ct1pI/maxresdefault.jpg Binary Search - Leetcode 704 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/binary-search 0:00 - Read the problem 0:58 - Drawing Explanation 5:10 - Coding Explanation leetcode 704 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/s4DPM8ct1pI https://www.techtube.co.in/tutorials/binary-tree-from-preorder-inorder-traversal-advance-tree-questions 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/LFGBTFxHJII/maxresdefault.jpg Binary Tree from Preorder & Inorder Traversal - Advance Tree Questions Learn how to construct a binary tree using preorder and inorder traversal in this step-by-step tutorial. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/AdvanceTreeQuestions - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org #dsa #placement #leetcode https://www.youtube.com/embed/LFGBTFxHJII https://www.techtube.co.in/tutorials/binary-tree-level-order-traversal-bfs-leetcode-102 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/6ZnyEApgFYg/maxresdefault.jpg Binary Tree Level Order Traversal - BFS - Leetcode 102 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/level-order-traversal-of-binary-tree 0:00 - Read the problem leetcode 102 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python https://www.youtube.com/embed/6ZnyEApgFYg https://www.techtube.co.in/tutorials/binary-tree-maximum-path-sum-dfs-leetcode-124-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Hr5cWUld4vU/maxresdefault.jpg Binary Tree Maximum Path Sum - DFS - Leetcode 124 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/binary-tree-maximum-path-sum 0:00 - Read the problem 4:26 - Drawing Explanation 11:56 - Coding Explanation leetcode 124 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #dfs #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/Hr5cWUld4vU https://www.techtube.co.in/tutorials/binary-tree-postorder-traversal-iterative-leetcode-145-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/QhszUQhGGlA/maxresdefault.jpg Binary Tree Postorder Traversal (Iterative) - Leetcode 145 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/binary-tree-postorder-traversal 0:00 - Read the problem 0:40 - Drawing Explanation 10:00 - Coding Explanation leetcode 145 #neetcode #leetcode #python https://www.youtube.com/embed/QhszUQhGGlA https://www.techtube.co.in/tutorials/binary-tree-preorder-traversal-iterative-leetcode-144-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/afTpieEZXck/maxresdefault.jpg Binary Tree Preorder Traversal (Iterative) - Leetcode 144 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/binary-tree-preorder-traversal 0:00 - Read the problem 0:50 - Drawing Explanation 7:20 - Coding Explanation leetcode 144 #neetcode #leetcode #python https://www.youtube.com/embed/afTpieEZXck https://www.techtube.co.in/tutorials/binary-tree-questions-for-technical-interviews-google-facebook-amazon-microsoft 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/9D-vP-jcc-Y/maxresdefault.jpg Binary Tree Questions for Technical Interviews - Google, Facebook, Amazon, Microsoft This 5+ hours long video is all you need to be able to solve any binary tree interview question. In this tutorial, we will dive into one of the most crucial topics to prepare for coding interviews: binary trees. Acquire profound insights and strategies to tackle interview questions from FAANG companies in this 5+ hours course. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/TreeQuestions - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org ====================================================================== Timestamps: 0:00:00 Introduction 0:06:20 Breadth First Search (BFS) 0:20:04 Q1 : Binary Tree Level Order Traversal 0:28:01 Q2 : Average of Levels in Binary Tree 0:34:08 Q3 : Level Order Successor of a node 0:42:10 Q4 : Binary Tree Zigzag Level Order Traversal 0:54:11 Q5 : Binary Tree Level Order Traversal II 0:55:16 Q6 : Populating Next Right Pointers in Each Node 1:11:13 Q7 : Binary Tree Right Side View 1:14:52 Q8 : Cousins in Binary Tree 1:28:06 Q9 : Symmetric Tree 1:42:45 Depth First Search (DFS) 1:52:10 Q10 : Diameter of Binary Tree 2:08:08 Q11 : Invert Binary Tree 2:24:01 Q12 : Maximum Depth of Binary Tree 2:27:07 Q13 : Convert Sorted Array to Binary Search Tree 2:28:05 Q14 : Flatten Binary Tree to Linked List 2:27:54 Q15 : Validate Binary Search Tree 2:57:43 Q16 : Lowest Commom Ancestor of a Binary Tree 3:08:44 Q17 : Kth Smallest Element in a BST 3:18:28 Q18 : Construct Binary Tree from Preorder and Inorder Traversal 3:31:20 Q19 : Serialize and Deserialize Binary Tree 3:48:54 Q20 : Path Sum 3:55:56 Q21 : Sum Root to Leaf Numbers 4:05:11 Q22 : Binary Tree Maximum Path Sum 4:19:50 Q23 : Path Exists in Binary Tree from Root to Leaf 4:26:24 Q24 : Path Exists in Binary Tree at Any Nodes 4:45:27 Top 50 Tree Coding Problems on GeeksForGeeks 4:48:00 Depth First Search (DFS) using Stack 4:56:28 Resources #trees #placement #dsa #computerscience #faang https://www.youtube.com/embed/9D-vP-jcc-Y https://www.techtube.co.in/tutorials/binary-tree-right-side-view-breadth-first-search-leetcode-199 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/d4zLyf32e3I/maxresdefault.jpg Binary Tree Right Side View - Breadth First Search - Leetcode 199 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/binary-tree-right-side-view 0:00 - Read the problem 1:50 - Drawing Explanation 6:30 - Coding Explanation leetcode 199 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #breadth #first #python https://www.youtube.com/embed/d4zLyf32e3I https://www.techtube.co.in/tutorials/binary-trees-tutorial-introduction-traversals-code-binary-search-trees-bst 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/4s1Tcvm00pA/maxresdefault.jpg Binary Trees Tutorial - Introduction + Traversals + Code | Binary Search Trees (BST) This is the first tutorial in the complete tree playlist of the DSA bootcamp for interview preparation: https://www.youtube.com/playlist?list=PL9gnSGHSqcnqfctdbCQKaw5oZ9Up2cmsq. We will learn about one of the most important data structures for coding interviews: the tree. We will learn how trees work, their use cases, the various types of trees, and how to implement them from scratch. By setting this foundation, we can solve complex problems in an easy way. Join me in this video to enhance your understanding of trees. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Trees code: https://replit.com/@KunalsReplit/Trees-1 - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ======================================================== Timestamps: 00:00:00 Introduction 00:07:53 Why trees? 00:20:35 Where is it used? 00:24:45 Terminologies 00:35:15 Types of binary trees 00:42:46 Properties 00:55:37 Implementation - Binary trees 01:39:14 Binary Search Trees 02:30:00 Traversals 02:50:53 Outro #trees #placements #dsa https://www.youtube.com/embed/4s1Tcvm00pA https://www.techtube.co.in/tutorials/bitwise-and-of-numbers-range-leetcode-201-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/R3T0olAhUq0/maxresdefault.jpg Bitwise AND of Numbers Range - Leetcode 201 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/bitwise-and-of-numbers-range 0:00 - Read the problem 0:11 - Drawing Explanation 10:38 - Coding Explanation 13:37 - Drawing Explanation 17:24 - Coding Explanation leetcode 201 #neetcode #leetcode #python https://www.youtube.com/embed/R3T0olAhUq0 https://www.techtube.co.in/tutorials/bitwise-operators-number-systems-maths-for-dsa 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/fzip9Aml6og/maxresdefault.jpg Bitwise Operators + Number Systems - Maths for DSA This is a complete course on bitwise operators + number systems. Starting from scratch till covering interview questions. Here we cover: - various operators and their applications - number systems - conversion of bases - representation of binary numbers, including negatives - range of numbers - optimisation algorithms - questions Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 00:00:00 Introduction 00:04:40 Bitwise Operators 00:14:41 Number Systems 00:19:55 Number System Conversion 00:26:49 More Bitwise Operators 00:33:05 Question-01 00:42:39 Question-02 00:46:45 Question-03 00:49:08 Question-04 00:52:21 Question-05 00:53:32 Question-06 00:55:40 Question-07 00:59:57 Negative Binary Numbers 01:09:26 Range of Numbers 01:14:54 Formula to Calculate Range 01:17:00 Question-08 01:23:06 Question-09 (Amazon) 01:29:13 Question-10 01:35:36 Question-11 01:38:26 Question-12 01:43:42 Question-13 01:51:24 Question-14 01:59:39 Question-15 02:03:45 Question-16 02:09:40 Question-17 (Google) 02:16:44 Outro #math #placement #dsa #interviews https://www.youtube.com/embed/fzip9Aml6og https://www.techtube.co.in/tutorials/boats-to-save-people-leetcode-881-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/XbaxWuHIWUs/maxresdefault.jpg Boats to Save People - Leetcode 881 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/boats-to-save-people 0:00 - Read the problem 1:15 - Drawing Explanation 4:49 - Coding Explanation leetcode 881 #amazon #interview #python https://www.youtube.com/embed/XbaxWuHIWUs https://www.techtube.co.in/tutorials/bs-1-binary-search-introduction-real-life-example-iterative-recursive-overflow-cases 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/MHf6awe89xw/maxresdefault.jpg BS-1. Binary Search Introduction | Real Life Example | Iterative | Recursive | Overflow Cases Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Binary Search Introduction | Real Life Example | Iterative | Recursive | Overflow Cases https://takeuforward.org/plus/dsa/problems/search-x-in-sorted-array Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/MHf6awe89xw https://www.techtube.co.in/tutorials/bs-10-finding-sqrt-of-a-number-using-binary-search 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Bsv3FPUX_BA/maxresdefault.jpg BS-10. Finding Sqrt of a number using Binary Search Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Finding Sqrt of a number using Binary Search https://takeuforward.org/plus/dsa/problems/find-square-root-of-a-number Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/Bsv3FPUX_BA https://www.techtube.co.in/tutorials/bs-11-find-the-nth-root-of-an-integer 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/rjEJeYCasHs/maxresdefault.jpg BS-11. Find the Nth root of an Integer Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Find the Nth root of an Integer https://takeuforward.org/plus/dsa/problems/find-nth-root-of-a-number Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/rjEJeYCasHs https://www.techtube.co.in/tutorials/bs-12-koko-eating-bananas 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/qyfekrNni90/maxresdefault.jpg BS-12. Koko Eating Bananas Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Koko Eating Bananas https://takeuforward.org/plus/dsa/problems/koko-eating-bananas Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/qyfekrNni90 https://www.techtube.co.in/tutorials/bs-13-minimum-days-to-make-m-bouquets-binary-search 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/TXAuxeYBTdg/maxresdefault.jpg BS-13. Minimum days to make M bouquets | Binary Search Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Minimum days to make M bouquets | Binary Search https://takeuforward.org/plus/dsa/problems/minimum-days-to-make-m-bouquets Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/TXAuxeYBTdg https://www.techtube.co.in/tutorials/bs-14-find-the-smallest-divisor-given-a-threshold-binary-search 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/UvBKTVaG6U8/maxresdefault.jpg BS-14. Find the Smallest Divisor Given a Threshold | Binary Search Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Find the Smallest Divisor Given a Threshold | Binary Search https://takeuforward.org/plus/dsa/problems/find-the-smallest-divisor Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/UvBKTVaG6U8 https://www.techtube.co.in/tutorials/bs-15-capacity-to-ship-packages-within-d-days 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/MG-Ac4TAvTY/maxresdefault.jpg BS-15. Capacity to Ship Packages within D Days Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/MG-Ac4TAvTY https://www.techtube.co.in/tutorials/bs-16-kth-missing-positive-number-maths-binary-search 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/uZ0N_hZpyps/maxresdefault.jpg BS-16. Kth Missing Positive Number | Maths + Binary Search Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/uZ0N_hZpyps https://www.techtube.co.in/tutorials/bs-17-aggressive-cows-binary-search-hard 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/R_Mfw4ew-Vo/maxresdefault.jpg BS-17. Aggressive Cows | Binary Search Hard Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Aggressive Cows | Binary Search Hard https://takeuforward.org/plus/dsa/problems/aggressive-cows Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/R_Mfw4ew-Vo https://www.techtube.co.in/tutorials/bs-18-allocate-books-or-book-allocation-hard-binary-search 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Z0hwjftStI4/maxresdefault.jpg BS-18. Allocate Books or Book Allocation | Hard Binary Search Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Allocate Books or Book Allocation | Hard Binary Search https://takeuforward.org/plus/dsa/problems/book-allocation-problem Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/Z0hwjftStI4 https://www.techtube.co.in/tutorials/bs-19-painters-partition-and-split-array-largest-sum 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/thUd_WJn6wk/maxresdefault.jpg BS 19. Painter's Partition and Split Array - Largest Sum Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Painter's Partition and Split Array - Largest Sum https://takeuforward.org/plus/dsa/problems/split-array---largest-sum Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/thUd_WJn6wk https://www.techtube.co.in/tutorials/bs-2-implement-lower-bound-and-upper-bound-search-insert-position-floor-and-ceil 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/6zhGS79oQ4k/maxresdefault.jpg BS-2. Implement Lower Bound and Upper Bound | Search Insert Position | Floor and Ceil Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Implement Lower Bound and Upper Bound | Search Insert Position | Floor and Ceil https://takeuforward.org/plus/dsa/problems/lower-bound- https://takeuforward.org/plus/dsa/problems/upper-bound https://takeuforward.org/plus/dsa/problems/search-insert-position https://takeuforward.org/plus/dsa/problems/floor-and-ceil-in-sorted-array Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/6zhGS79oQ4k https://www.techtube.co.in/tutorials/bs-20-minimise-maximum-distance-between-gas-stations-3-approaches-heap-binary-search 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/kMSBvlZ-_HA/maxresdefault.jpg BS-20. Minimise Maximum Distance between Gas Stations | 3 Approaches | Heap | Binary Search Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Minimise Maximum Distance between Gas Stations | 3 Approaches | Heap | Binary Search https://takeuforward.org/plus/dsa/problems/minimise-max-distance-to-gas-stations Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/kMSBvlZ-_HA https://www.techtube.co.in/tutorials/bs-21-median-of-two-sorted-arrays-of-different-sizes-binary-search-approach-with-intuition 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/F9c7LpRZWVQ/maxresdefault.jpg BS-21. Median of two Sorted Arrays of Different Sizes | Binary Search Approach With Intuition Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/F9c7LpRZWVQ https://www.techtube.co.in/tutorials/bs-21-median-of-two-sorted-arrays-of-different-sizes-brute-and-better-approach 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/C2rRzz-JDk8/maxresdefault.jpg BS 21: Median of two Sorted Arrays of Different Sizes | Brute and Better Approach Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Median of two Sorted Arrays of Different Sizes | Brute and Better Approach https://takeuforward.org/plus/dsa/problems/median-of-2-sorted-arrays Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/C2rRzz-JDk8 https://www.techtube.co.in/tutorials/bs-22-k-th-element-of-two-sorted-arrays-binary-search-approach 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/D1oDwWCq50g/maxresdefault.jpg Bs-22. K-th element of two sorted arrays | Binary Search Approach Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 K-th element of two sorted arrays | Binary Search Approach https://takeuforward.org/plus/dsa/problems/kth-element-of-2-sorted-arrays Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/D1oDwWCq50g https://www.techtube.co.in/tutorials/bs-23-row-with-maximum-number-of-1s-binary-search-on-2d-arrays 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/SCz-1TtYxDI/maxresdefault.jpg BS 23. Row with maximum number of 1s | Binary Search on 2D Arrays Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Row with maximum number of 1s | Binary Search on 2D Arrays https://takeuforward.org/plus/dsa/problems/find-row-with-maximum-1's Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/SCz-1TtYxDI https://www.techtube.co.in/tutorials/bs-24-search-in-a-2d-matrix-i-binary-search-of-2d 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/JXU4Akft7yk/maxresdefault.jpg BS-24. Search in a 2D Matrix - I | Binary Search of 2D Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 BS-24. Search in a 2D Matrix - I | Binary Search of 2D https://takeuforward.org/plus/dsa/problems/search-in-a-2d-matrix Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/JXU4Akft7yk https://www.techtube.co.in/tutorials/bs-25-search-in-a-2d-matrix-ii-binary-search-on-2d 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/9ZbB397jU4k/maxresdefault.jpg BS-25. Search in a 2D Matrix - II | Binary Search on 2D Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 BS-25. Search in a 2D Matrix - II | Binary Search on 2D https://takeuforward.org/plus/dsa/problems/search-in-2d-matrix-ii Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/9ZbB397jU4k https://www.techtube.co.in/tutorials/bs-26-find-peak-element-ii-binary-search 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/nGGp5XBzC4g/maxresdefault.jpg BS-26. Find Peak Element-II | Binary Search Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Find Peak Element-II | Binary Search https://takeuforward.org/plus/dsa/problems/find-peak-element Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/nGGp5XBzC4g https://www.techtube.co.in/tutorials/bs-27-median-in-a-row-wise-sorted-matrix 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Q9wXgdxJq48/maxresdefault.jpg BS-27. Median in a Row Wise Sorted Matrix Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 BS-27. Median in a Row Wise Sorted Matrix https://takeuforward.org/plus/dsa/problems/matrix-median Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/Q9wXgdxJq48 https://www.techtube.co.in/tutorials/bs-3-first-and-last-occurrences-in-array-count-occurrences-in-array 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/hjR1IYVx9lY/maxresdefault.jpg BS-3. First and Last Occurrences in Array | Count occurrences in Array Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 First and Last Occurrences in Array | Count occurrences in Array https://takeuforward.org/plus/dsa/problems/first-and-last-occurrence Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/hjR1IYVx9lY https://www.techtube.co.in/tutorials/bs-4-search-element-in-rotated-sorted-array-i 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/5qGrJbHhqFs/maxresdefault.jpg BS-4. Search Element in Rotated Sorted Array - I Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Search Element in Rotated Sorted Array - I https://takeuforward.org/plus/dsa/problems/search-in-rotated-sorted-array-i Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/5qGrJbHhqFs https://www.techtube.co.in/tutorials/bs-5-search-element-in-rotated-sorted-array-ii 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/w2G2W8l__pc/maxresdefault.jpg BS-5. Search Element in Rotated Sorted Array II Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Search Element in Rotated Sorted Array II https://takeuforward.org/plus/dsa/problems/search-in-rotated-sorted-array-ii Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/w2G2W8l__pc https://www.techtube.co.in/tutorials/bs-6-minimum-in-rotated-sorted-array 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/nhEMDKMB44g/maxresdefault.jpg BS-6. Minimum in Rotated Sorted Array Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Minimum in Rotated Sorted Array https://takeuforward.org/plus/dsa/problems/find-minimum-in-rotated-sorted-array Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/nhEMDKMB44g https://www.techtube.co.in/tutorials/bs-7-find-out-how-many-times-array-has-been-rotated 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/jtSiWTPLwd0/maxresdefault.jpg BS-7. Find out how many times array has been rotated Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Find out how many times array has been rotated https://takeuforward.org/plus/dsa/problems/find-out-how-many-times-the-array-is-rotated Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/jtSiWTPLwd0 https://www.techtube.co.in/tutorials/bs-8-single-element-in-sorted-array 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/AZOmHuHadxQ/maxresdefault.jpg BS-8. Single Element in Sorted Array Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Single Element in Sorted Array https://takeuforward.org/plus/dsa/problems/single-element-in-sorted-array Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/AZOmHuHadxQ https://www.techtube.co.in/tutorials/bs-9-find-peak-element 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/cXxmbemS6XM/maxresdefault.jpg BS-9. Find Peak Element Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Find Peak Element https://takeuforward.org/plus/dsa/problems/find-peak-element Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/cXxmbemS6XM https://www.techtube.co.in/tutorials/bubble-sort-algorithm-theory-code 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/F5MZyqRp_IM/maxresdefault.jpg Bubble Sort Algorithm - Theory + Code This is the first video in the sorting algorithm series where we cover bubble sort in depth. We look at how the algorithm works, the complexity analysis, optimisation, and code. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00 Introduction 1:06 Bubble Sort 5:03 Why Bubble Sort? 8:22 Others Names of Bubble Sort 17:14 Complexity of Bubble Sort 18:04 Space Complexity 19:10 Time Complexity 21:55 Best Case 25:17 Check time complexity video for general answer 32:12 Stable and Unstable Sorting Algorithm 36:03 Code for Bubble Sort 46:06 Outro #sorting #placement #dsa #interviews https://www.youtube.com/embed/F5MZyqRp_IM https://www.techtube.co.in/tutorials/build-a-full-stack-movie-streaming-app-in-go-golang-react-mongodb-openai-api-project-course 2026-09-04 weekly 0.7 https://i.ytimg.com/vi/jBf7of9JTV8/maxresdefault.jpg Build a Full Stack Movie Streaming App in Go – Golang, React, MongoDB, OpenAI API Project Course Lean how to build a complete full-stack movie streaming app with AI-powered movie recommendations. You’ll use Go with the Gin-Gonic framework on the backend, React on the frontend, and MongoDB for data storage. For the AI features, you’ll connect your Go backend to OpenAI using LangChainGo. Sign up for MongoDB Atlas: https://www.mongodb.com/ ✏️ Course developed by @GavinLon 💻 Code: https://github.com/GavinLonDigital/MagicStream 🏗️ MongoDB provided a grant to make this course possible. ⭐️ Contents ⭐️ - 0:00:00 Introduction and Overview of the Course - 0:10:14 Setup Development Environment - 0:10:19 Install MongoDB and Compass (GUI for MongoDB) - 0:14:05 Install MongoDB Shell - 0:17:54 Launch Compass, Create and Seed MagicStream MongoDB Database - 0:23:38 Use MongoDB Shell to Interact with MongoDB Database - 0:29:42 Install Go (Golang) on Dev Machine - 0:34:31 Create Basic Go Application using Command Line Interface and Notepad - 0:38:45 Install Visual Studio Code on Dev Machine - 0:42:42 Create Full-stack Project Infrastructure in VSCode - 0:44:38 Create go.mod file for Go/Gin-Gonic Web API - 0:47:32 Install Go Extension for Visual Studio Code - 0:51:00 Start Creation of Code for Go/Gin-Gonic Web API - 0:51:26 Install Gin-Gonic (Gin) Web Framework - 1:06:33 Create Movie Model and GetMovies End Point - 1:31:01 Create Movie Controller - 1:33:01 Create GetMovies Gin-Gonic Endpoint Handler Function - 1:44:20 Create Reusable MongoDB Connection Code in database Package - 2:16:46 Create GetMovie Endpoint Function Handler - 2:35:58 Create AddMovie Endpoint Function Handler - 3:02:34 Install Postman and use Postman to test Post Request to AddMovie Endpoint - 3:14:41 Create User Model - 3:44:00 Create RegisterUser Endpoint Handler Function - 4:20:25 Create Login Functionality - 5:29:52 Create Middleware Functionality to Validate Incoming Access Tokens - 5:50:23 Configure Protected and Unprotected Gin (gin-gonic) Routes - 6:06:49 Update Movie Review - Engage with openAI through LangChainGo - 6:34:22 Sign up for Account with openAI - 6:59:32 Create Movie Recommendation Service Powered by AI - 8:13:57 Go/Gin-Gonic Best Practices - Minor Code Amendments - 8:54:51 Create Frontend Code Using React - 9:02:57 Create UI for Home Page - 9:59:05 Create Header Component - 10:24:43 Setup Routes using react-router-dom - 10:24:58 Create User Registration UI - 10:56:59 Create Login UI - 11:10:30 Create Auth Provider and Auth Context Functionality - 11:39:31 Create UI for Movie Recommendation Service - 12:05:37 Create UI for Updating Admin Movie Reviews - 12:38:29 Amend Code so that Access Token is Stored in http-only cookies (prevent XSS attacks) - 13:41:01 Using react-player to Play Movies in Browser - 14:04:27 Deploy full stack Web App to the Cloud - 14:08:13 Deploy MongoDB to Atlas and Seed Data from Local MongoDB - 14:18:42 Deploy Go/Gin-Gonic Web API to Render - 14:35:31 Deploy React Client Code to Vercel - 14:44:48 Outro https://www.youtube.com/embed/jBf7of9JTV8 https://www.techtube.co.in/tutorials/build-a-matrix-with-conditions-leetcode-2392-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/khTKB1PzCuw/maxresdefault.jpg Build a Matrix With Conditions - Leetcode 2392 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/build-a-matrix-with-conditions 0:00 - Read the problem 0:30 - Drawing Explanation 15:20 - Coding Explanation leetcode 2392 #neetcode #leetcode #python https://www.youtube.com/embed/khTKB1PzCuw https://www.techtube.co.in/tutorials/burst-baloons-dynamic-programming-leetcode-312-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/VFskby7lUbw/maxresdefault.jpg Burst Baloons - Dynamic Programming - Leetcode 312 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/burst-balloons 0:00 - Read the problem 4:13 - Intuition 13:15 - Drawing Explanation 16:55 - Coding Explanation leetcode 312 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #burst #baloons #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/VFskby7lUbw https://www.techtube.co.in/tutorials/c-basics-in-one-shot-strivers-a2z-dsa-course-l1 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/EAR7De6Goz4/maxresdefault.jpg C++ Basics in One Shot - Strivers A2Z DSA Course - L1 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/EAR7De6Goz4 https://www.techtube.co.in/tutorials/candy-leetcode-135-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/1IzCRCcK17A/maxresdefault.jpg Candy - Leetcode 135 - Python Solving leetcode 135, Candy. Todays daily leetcode problem on september 12, 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/candy 0:00 - Understand the problem 3:25 - Drawing Explanation 9:56 - Coding Explanation leetcode 135 #neetcode #leetcode #python https://www.youtube.com/embed/1IzCRCcK17A https://www.techtube.co.in/tutorials/capacity-to-ship-packages-leetcode-1011-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/ER_oLmdc-nw/maxresdefault.jpg Capacity to Ship Packages - Leetcode 1011 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/capacity-to-ship-packages-within-d-days 0:00 - Read the problem 1:15 - Drawing Explanation 8:10 - Coding Explanation leetcode 1011 #neetcode #leetcode #python https://www.youtube.com/embed/ER_oLmdc-nw https://www.techtube.co.in/tutorials/car-fleet-leetcode-853-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Pr6T-3yB9RM/maxresdefault.jpg Car Fleet - Leetcode 853 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/car-fleet 0:00 - Read the problem 2:53 - Drawing Explanation 12:18 - Coding Explanation leetcode 853 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #google #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/Pr6T-3yB9RM https://www.techtube.co.in/tutorials/car-pooling-leetcode-1094-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/08sn_w4LWEE/maxresdefault.jpg Car Pooling - Leetcode 1094 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/car-pooling leetcode 1094 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #amazon #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/08sn_w4LWEE https://www.techtube.co.in/tutorials/climbing-stairs-dynamic-programming-leetcode-70-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Y0lT9Fck7qI/maxresdefault.jpg Climbing Stairs - Dynamic Programming - Leetcode 70 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/climbing-stairs 0:00 - Read the problem 3:55 - Brute Force 8:00 - Memoization 11:05 - Dynamic Programming 16:49 - Coding DP leetcode 70 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #dynamic #programming #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/Y0lT9Fck7qI https://www.techtube.co.in/tutorials/clone-graph-depth-first-search-leetcode-133 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/mQeF6bN8hMk/maxresdefault.jpg Clone Graph - Depth First Search - Leetcode 133 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/clone-graph 0:00 - Read the problem 1:30 - Drawing Explanation 8:02 - Coding Explanation leetcode 133 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #clone #graph #python https://www.youtube.com/embed/mQeF6bN8hMk https://www.techtube.co.in/tutorials/coin-change-2-dynamic-programming-unbounded-knapsack-leetcode-518-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Mjy4hd2xgrs/maxresdefault.jpg Coin Change 2 - Dynamic Programming Unbounded Knapsack - Leetcode 518 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Code on Github: https://github.com/neetcode-gh/leetcode/blob/main/518-coin-change-2.py ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/coin-change-ii 0:00 - Read the problem 2:25 - Brute Force Explained 5:57 - Memoization Explained 8:52 - Naive DP Explained 13:40 - Optimal Space DP Explained 18:15 - Memoization Code 20:10 - O(n*m) Space DP 22:20 - O(n) Space DP leetcode 518 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #unbounded #knapsack #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/Mjy4hd2xgrs https://www.techtube.co.in/tutorials/coin-change-dynamic-programming-bottom-up-leetcode-322 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/H9bfqozjoqs/maxresdefault.jpg Coin Change - Dynamic Programming Bottom Up - Leetcode 322 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/coin-change 0:00 - Read the problem 1:30 - Greedy doesn't work 3:05 - DFS Solution 10:40 - Dynamic Programming 15:35 - Coding Solution leetcode 322 This question was identified as a Facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency/blob/master/Apple%20-%20LeetCode.pdf #leetcode #programming #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/H9bfqozjoqs https://www.techtube.co.in/tutorials/combination-sum-backtracking-leetcode-39-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/GBKI9VSKdGg/maxresdefault.jpg Combination Sum - Backtracking - Leetcode 39 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/combination-target-sum 0:00 - Read the problem 1:36 - Drawing Explanation 10:19 - Coding Explanation leetcode 39 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #backtracking #combination #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/GBKI9VSKdGg https://www.techtube.co.in/tutorials/combination-sum-ii-leetcode-40-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/FOyRpNUSFeA/maxresdefault.jpg Combination Sum II - Leetcode 40 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/combination-target-sum-ii 0:00 - Read the problem 0:30 - Drawing Explanation 9:08 - Coding Explanation leetcode 40 #neetcode #leetcode #python https://www.youtube.com/embed/FOyRpNUSFeA https://www.techtube.co.in/tutorials/combination-sum-iv-dynamic-programming-leetcode-377-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/dw2nMCxG0ik/maxresdefault.jpg Combination Sum IV - Dynamic Programming - Leetcode 377 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/combination-sum-iv 0:00 - Read the problem 1:35 - Drawing Explanation 9:37 - Coding Explanation leetcode 377 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #dynamic #programming #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/dw2nMCxG0ik https://www.techtube.co.in/tutorials/combinations-leetcode-77-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/q0s6m7AiM7o/maxresdefault.jpg Combinations - Leetcode 77 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/combinations 0:00 - Read the problem 1:30 - Drawing Explanation 5:51 - Coding Explanation leetcode 77 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #combinations #backtracking #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/q0s6m7AiM7o https://www.techtube.co.in/tutorials/complete-backend-developer-course 2026-08-26 weekly 0.7 https://i.ytimg.com/vi/7fjOw8ApZ1I/maxresdefault.jpg Complete Backend Developer course Timestamp: JavaScript Backend Roadmap | chai aur backend 00:00:00 How to deploy backend code in production 00:29:19 Connect Backend with frontend 01:19:32 Data Modelling for backend with mongoose 02:10:17 E-commerce and Hospital management data modelling 03:06:27 Taking backend to next level 03:56:16 How to set up a professional backend project 04:06:17 How to connect database in MERN with debugging 04:47:51 Custom API response and error handling 05:28:43 User and video model with hooks and JWT 06:15:38 How to upload file in backend | Multer 07:05:38 HTTP crash course 07:43:59 Complete guide for router and controller 08:08:17 Logic building - Register controller 08:37:51 How to use Postman for backend 09:30:39 https://www.youtube.com/embed/7fjOw8ApZ1I https://www.techtube.co.in/tutorials/complete-c-stl-in-1-video-time-complexity-and-notes 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/RRVYpIET_RU/maxresdefault.jpg Complete C++ STL in 1 Video | Time Complexity and Notes Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/RRVYpIET_RU https://www.techtube.co.in/tutorials/complete-c-tutorial-in-one-shot-2023-beginner-to-advance-basics-of-c-programming 2026-08-19 weekly 0.7 https://i.ytimg.com/vi/e7sAf4SbS_g/maxresdefault.jpg Complete C++ Tutorial in One Shot 2023 | Beginner To Advance | Basics Of C++ Programming Would you like to learn all about the basics of the C++ language? In this one-shot course, we'll start from the very basics and work our way up to all the foundational topics. If you're interested in learning about the basics of the C++ language, then this course is for you! In this course, we'll cover everything from the basics of the C++ language to topics like conditionals, loops, pattern printing, functions, pointers, recursion, and very basic data structures like arrays, 2D arrays, and Strings. This course is perfect for anyone looking to start learning C++. Notes :- https://drive.google.com/drive/folders/1OTeptkNFmtBSoMqW6oxiWmvDUrQl6Peo?usp=sharing Timestamps : 00:00 Introduction 02:25 Online compiler - Replit 07:18 Basics 1:56:20 Conditionals 3:23:48 Loops 5:04:56 Pattern Printing 6:14:54 Functions 7:30:03 Pointers 7:55:43 Recursion 8:57:31 Arrays 10:17:00 2D Arrays 10:59:18 Strings https://www.youtube.com/embed/e7sAf4SbS_g https://www.techtube.co.in/tutorials/complete-dsa-patterns-course-2025-babua-premiere-league-final-phase-update-important 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/jnTatLqluGI/maxresdefault.jpg 📢 Complete DSA Patterns Course 2025 | Babua Premiere League - Final Phase Update (IMPORTANT) 🌟 Registration Form: https://docs.google.com/forms/d/e/1FAIpQLSfFHCMcs8GO4hMZy7QQuKAUty42T0t93Uc0LskS3-tNnw7CDQ/viewform?usp=dialog Submission Form: https://docs.google.com/forms/d/e/1FAIpQLSenJegpTFriCSISnUViiefgWlD-kFDsHKejZdUe3WVQuKcGUA/viewform?usp=dialog Problem Statement: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/BPL-Problem-Statement.pdf Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course 📢 Babua Premiere League | Final Phase Update (IMPORTANT) The Babua Premiere League (BPL) has now entered its LAST & FINAL PHASE 🚀 In this video, I explain: What the final phase of BPL is all about What is expected from you in this phase How your idea submission will be evaluated Common mistakes to avoid in the final stretch ⚠️ IMPORTANT UPDATE Due to multiple requests from students, the idea submission deadline has been EXTENDED by 1 DAY. 🗓 New Final Deadline: 1st January 2026 – 11:00 PM (IST) Make sure your final idea submission is completed and submitted before 11 PM. Submissions after the deadline will not be considered. This final phase is where real problem-solvers stand out — focus on clarity, execution, and business thinking, not just code. If you have any doubts about the problem statement or submission process, drop your questions in the comments section 👇 I’ll be actively responding. All the best to every participant 💪 Let’s see who makes it to the top of Babua Premiere League 🏆 — CTO Bhaiya Babua DSA Patterns | BPL Initiative CHAPTERS 00:00 Introduction #BabuaPremiereLeague #BPLFinalPhase #BPLUpdate #SubmissionDeadlineExtended #IdeaSubmission #HackathonUpdate #StudentHackathon #TechHackathon #DSACommunity #BabuaDSAPatterns #CTOBhaiya #CodingCommunity #StartupIdeas #ProductThinking #InnovationChallenge #EngineeringStudents #PlacementsPreparation #BuildInPublic #CollegeCoders #FinalCall Your Queries: babua premiere league bpl final phase bpl update bpl deadline extended idea submission extended hackathon announcement student hackathon india coding competition update babua dsa patterns cto bhaiya startup idea submission product thinking hackathon engineering students india college coders build in public placement focused hackathon innovation challenge india final submission deadline ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/jnTatLqluGI https://www.techtube.co.in/tutorials/complete-dsa-patterns-course-2025-babua-premiere-league-phase-1-hack-karo-internship-pao 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ROnMrYWMr9Q/maxresdefault.jpg 📢 Complete DSA Patterns Course 2025 | Babua Premiere League - Phase 1 | Hack Karo, Internship Pao 🌟 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course 🏏 Babua Premier League (BPL) | Hackathon → Mentorship → Internships | CTO Bhaiya Babua Premier League (BPL) is a special hackathon initiative by the CTO Bhaiya YouTube Channel exclusively for students of the Babua DSA Patterns Course. This is not a random coding contest. This is a real product-building challenge designed to identify industry-ready engineers and connect them with mentorship, elite networks, and internships. 🎯 What Is Babua Premier League? BPL is a short, high-impact hackathon where students will: • Build a real, working product • Apply DSA + system thinking in practice • Show business understanding and execution • Explain technical decisions clearly • Compete for mentorship and internship opportunities 🗓️ Hackathon Timeline 📌 Problem Statement Release: ➡️ 27th December 2025 📌 Hackathon Duration: ➡️ 28th December – 30th December 2025 📦 Submission Requirements Each participant/team must submit: • A GitHub repository containing: Clean README Steps to run the project locally OR a live deployed URL • A product demo video (maximum 4 minutes) explaining: What you built How it works Why it solves the given problem 🧮 Evaluation & Points Distribution 🔹 Community Contribution – 20% • 10% – Minimum 10 LinkedIn posts on Babua DSA Patterns Course • 5% – Minimum 10 supportive comments on Babua YouTube videos • 5% – Supporting and engaging with others’ LinkedIn posts Low-effort or spam engagement will not be counted. 🔹 Product Execution – 80% • Product completeness & quality • Problem-solving approach • Business value & clarity • Technical architecture & decisions • Demo explanation & Q&A This is the core evaluation area. 🏆 Winners & Rewards 🥇 First Winner • Internships with known industry professionals • Includes all benefits of 2nd & 3rd winner 🥈 Second Winner • 1-month direct full-stack mentorship with CTO Bhaiya • Reimbursement of paid courses & learning material • Access to resources CTO Bhaiya has used to build real products • Includes all benefits of 3rd winner 🥉 Third Winner • Direct entry into Babua Elite Club • Eligibility for mentorship from elite IT industry professionals 🚀 Who Should Participate? ✔️ Babua DSA Patterns Course students ✔️ Learners who want real-world exposure ✔️ Engineers serious about mentorship & internships ✔️ Builders who want to stand out from the crowd 🧠 Final Message DSA helps you crack interviews. Building products gets you hired. Babua Premier League is where learning turns into opportunity. 📌 Enroll in Babua DSA Patterns Course to become eligible 📌 Join the community and stay active 📌 Subscribe to CTO Bhaiya for updates 🔥 Let’s build. Let’s compete. Let’s grow. CHAPTERS 00:00 Introduction 01:25 Hackathon Timeline 02:03 Submission Requirements 02:49 Submission and Point Requirements 04:50 Winners & Rewards 07:38 Who is eligible 08:44 Submit this form 11:25 Cursor AI Courses 12:24 Conclusion #BabuaPremierLeague #BPLHackathon #CTOBhaiya #BabuaDSAPatterns #DSAHackathon #ProductBasedHackathon #CodingHackathon #BuildInPublic #FromDSAToProduct #TechInternships #DeveloperMentorship #FullStackDevelopment #SoftwareEngineering #ProgrammingStudents #Placements2025 #FAANGPrep #StartupEngineering #CodingCommunity #IndianDevelopers #LearnBuildGrow Your Queries: babua premier league BPL hackathon babua dsa patterns dsa course 2025 coding hackathon india internship through hackathon software engineering internship placements 2025 dsa for placements build real projects coding community india product based companies prep faang preparation cto bhaiya learn build earn linkedin consistency youtube coding community career guidance software engineers startup internships india ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/ROnMrYWMr9Q https://www.techtube.co.in/tutorials/complete-dsa-patterns-course-2025-introducing-babua-premiere-league-hack-karo-internship-pao 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/4v0VzAWlz1Y/maxresdefault.jpg 📢 Complete DSA Patterns Course 2025 | Introducing Babua Premiere League-Hack Karo, Internship Pao 🌟 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course 🎯 Babua Premier League (BPL) | Hackathon → Internship Pipeline | Babua DSA Patterns 2025 Many of you asked one simple question — “Internship kaise milegi?” Babua Premier League (BPL) is the answer. In this video, I explain the Babua Premier League (BPL) initiative — a 5-day high-intensity league (21–25 Dec) designed to close the loop between learning DSA and getting real industry exposure BABUA_PREMIER_LEAGUE_INITIATIVE . This is not just about courses or certificates. BPL focuses on networking, consistency, community support, and building real products, evaluated primarily on business value, innovation, UI/UX, and execution through a hackathon BABUA_PREMIER_LEAGUE_INITIATIVE . You’ll learn: Why the market is not doomed, but people are looking in the wrong places How BPL creates a direct path from learning → hackathon → internships The evaluation criteria (80% product, 10% consistency & community, demos, GitHub, LinkedIn posts) How industry leaders are offering internships to winning teams post hackathon BABUA_PREMIER_LEAGUE_INITIATIVE If you believe in crazy consistency, helping others, and building real things, comment “BPL” and be ready. 📅 Next steps will be announced on Dec 20 BABUA_PREMIER_LEAGUE_INITIATIVE ❤️ Support each other. Be consistent. This is how careers are built. CHAPTERS 00:00 Introduction 02:51 Benefits for BPL Initiative 06:24 Mentor 08:29 Closing the loop 10:20 Evaluation Criteria 13:02 Conclusion #BabuaPremierLeague #BPLHackathon #BabuaDSAPatterns #DSA2025 #InternshipOpportunity #HackathonIndia #CodingInternships #SoftwareEngineeringStudents #Placements2025 #FAANGPreparation #DSAPreparation #LearnBuildEarn #FromLearningToEarning #RealWorldProjects #BuildInPublic #LinkedInConsistency #YouTubeCommunity #CodingCommunityIndia #CTOBhaiya #EngineeringCareers #ProductBasedCompanies #StartupInternships #AIEngineering #CareerGuidance Your Queries: babua premier league BPL hackathon babua dsa patterns dsa course 2025 coding hackathon india internship through hackathon software engineering internship placements 2025 dsa for placements build real projects coding community india product based companies prep faang preparation cto bhaiya learn build earn linkedin consistency youtube coding community career guidance software engineers startup internships india ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/4v0VzAWlz1Y https://www.techtube.co.in/tutorials/complete-dsa-patterns-course-2025-introducing-babua-star-the-most-premium-recognition-in-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/DMxD2_UzVYM/maxresdefault.jpg 📢 Complete DSA Patterns Course 2025 | Introducing Babua Star-The Most Premium Recognition in Course🌟 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Babua log, today I’m launching something VERY special for our community — Babua Star ⭐ This is not just a badge… This is respect. This is recognition. This is family. If you consistently support the Babua DSA Patterns Course — 💛 Post daily on LinkedIn about each day’s lecture 💛 Share learnings, tag me, inspire others 💛 Help others by liking, commenting, motivating them 💛 Support on YouTube through comments and discussions …then you might become the next Babua Star. 🌟 Benefits for Babua Star (Exclusive & Limited) If selected, you get: 🔹 1:1 Mentorship for 1 Week Direct guidance to supercharge your DSA + career journey. 🔹 1-Hour Personal Call with a MAANG Engineer Ask anything — interviews, system design, resume, growth… A golden opportunity. 🔹 Daily 15-Minute Check-ins for 1 Week To keep you accountable, consistent, and unstoppable. 🔹 Entry into the “Babua Elite Club” A community inside the community — the most consistent, most dedicated, most inspiring learners. Once you’re in and stay consistent… you stay FOREVER. ❤️ Why Babua Star Exists? Because I want to reward consistency, effort, and community support. Our course is free. Our community is strong. And those who help build this movement deserve something special. This initiative is my way of saying: “Thank you, Babua. I see your hard work.” 🚀 How to Become a Babua Star? ✔ Post daily on LinkedIn about each day’s lecture ✔ Tag me + use the hashtag #BabuaDSA ✔ Support others’ posts ✔ Leave meaningful comments on YouTube ✔ Be consistent ✔ Be kind ✔ Be helpful I pick Babua Stars every month ❤️ 🎯 Join the movement. Let’s make 2025 the biggest DSA learning revolution on YouTube. Stay consistent, Babua. Stay disciplined. And maybe… you’ll soon be a Babua Star 🌟 CHAPTERS 00:00 Introduction 02:51 Benefits for Babua Star Initiative 05:28 Our first Babua Star 08:29 Our first Babua Mentor 09:51 Next Babua Star Announcement 10:20 Conclusion #BabuaStar #BabuaDSAPatterns #DSAPatternsCourse #CTOBhaiya #DSA2025 #LearnDSA #DSACommunity #BabuaEliteClub #CodingJourney #DailyLinkedInPosting #SupportCreators #FreeDSACourse #DSALectures #CodingMotivation #ConsistencyIsKey #MAANGPrep #FAANGPrep #SoftwareEngineeringJourney #LinkedInCommunity #YouTubeCommunity #DSARevolution #IndianCoders #CodingInHindi #TechCareerGrowth #CodingConsistency #DailyLearningChallenge Your Queries: Babua Star Babua DSA Patterns Course 2025 CTO Bhaiya DSA DSA patterns course free DSA course Hindi DSA community initiative DSA motivation consistent coding challenge MAANG engineer mentorship FAANG preparation Hindi coding interview prep LinkedIn daily posting challenge Babua Elite Club DSA accountability group DSA lectures Hindi software engineering growth Indian coders community DSA challenge 2025 CTO Bhaiya mentorship ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/DMxD2_UzVYM https://www.techtube.co.in/tutorials/complete-dsa-patterns-course-2025-recap-onboarding-homework-babua-dsa-patterns-course-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/MwI_UZlnl6I/maxresdefault.jpg Complete DSA Patterns Course 2025 | Recap + Onboarding + Homework | Babua DSA Patterns Course #dsa Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Welcome back to the Babua DSA Patterns Course 2025! In this video, we’re doing a complete recap of the first 5 days, reviewing our progress, understanding what’s coming next, and assigning homework to set you up for success in the next phase of this 90-day journey. 🔥 What We Covered So Far 📌 Course Overview 5 Days Completed out of 90 Students asked to comment “Homework” to stay accountable Quick recap of everything done in the first week 📄 📘 Onboarding Sheet Your entire course roadmap, daily tracking, and video links are available here: 👉 https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/ONBOARDING.md This sheet acts as the single source of truth for: Daily tasks Video links Patterns covered Progress tracking 🧠 GitHub = TRUTH + All Videos + Notes We discussed why GitHub is your central hub for: Pattern-wise notes Questions sheet Video references Solutions Everything is updated here → No confusion, no outdated links. 🔎 Two Pointer Pattern Progress We reviewed the progress for the first major pattern: 23 Questions Total 16 Complete 7 Remaining Confidence should now be high in: Opposite pointer movement Same direction pointers Handling edge cases Applying patterns instead of brute force 📚 Homework (Important!) Before starting the next patterns, complete: 1️⃣ Arrays 101 (must-do) Strengthen basics and intuition. 2️⃣ Arrays Playlist + Strings Playlist Both are essential before jumping into advanced patterns. 3️⃣ Linked List Playlist Required for upcoming patterns like fast–slow pointers, in-place reversals, etc. 4️⃣ HashTable Playlist Will support patterns like Sliding Window, Frequency Maps, and more. 📌 Homework Deadline: Monday → DONE 🚀 What Happens Next? Starting Monday, we continue the Babua DSA Patterns Course with the next major pattern. Make sure your basics are rock-solid before continuing. ❤️ Thank You Thank you for joining this 90-day journey. Your consistency so far is the biggest win—keep the momentum going! If you’re part of the course, drop a “Homework” comment to show accountability Hashtags: #DSAPatterns #BabuaDSACourse #CTOBhaiya #DSAin90Days #DSA2025 #DSARecap #CodingInterviewPrep #TwoPointerPattern #LearnDSA #Striver #TakeUForward #ApnaCollege #LoveBabbar #NamasteDev #LeetCodePractice #CodingJourney #DataStructuresAndAlgorithms #NextGenCTO #GitHubDSA #Array101 #LinkedList #HashTable #DSAPlaylists #SoftwareEngineeringPrep #TechInterviewPreparation #CodingBootcamp Your Queries: Babua DSA Patterns Course DSA Patterns 2025 CTO Bhaiya Anuj Kumar DSA in 90 Days Two Pointer Pattern Arrays 101 Strings Playlist Linked List Playlist HashTable Playlist Coding Interview Prep LeetCode Patterns Striver Take U Forward Apna College Love Babbar Coding for Placements Data Structures and Algorithms DSA Roadmap 2025 GitHub DSA Notes DSA Playlist 90 Days DSA Challenge CHAPTERS 00:00 Introduction 01:53 Onboarding Sheet 02:58 GitHub Repo of Babua DSA Patterns Course 2025 07:22 Two Pointer Pattern Recap 09:39 Onboarding Homework 11:30 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/MwI_UZlnl6I https://www.techtube.co.in/tutorials/complete-dsa-patterns-course-bpl-winners-heap-pattern-pre-requisites-community-updates-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/okipv_XhrD0/maxresdefault.jpg 🚀 Complete DSA Patterns Course | BPL Winners🏆 + Heap Pattern Pre-Requisites + Community Updates #dsa Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course 🚀 Complete DSA Patterns Course | BPL Winners 🏆 + Heap Pattern Pre-Requisites + Community Updates Welcome to a special community update video from the Babua DSA Patterns Course 💙 In this video, we cover three important updates that every learner in this journey should know 👇 🏆 Babua Premier League (BPL) Winners First of all, huge congratulations to all the BPL winners 🎉 Your consistency, problem-solving mindset, and daily grind truly paid off. 📌 In this video, we: Announce the BPL winners Share what made them stand out Talk about the habits and patterns that helped them win If you didn’t win this time — don’t worry. This is a long game. Consistency always wins. 🧠 Heap Pattern – Pre-Requisites Explained Before jumping into the Heap Pattern, it’s important to build the right foundation. We discuss: What core concepts you must know before heaps Where heaps are actually used in interviews & real systems How heaps connect with top-k, scheduling, greedy, and streaming problems Common mistakes students make while learning heaps This will help you avoid confusion and learn heaps the Babua way — concept first, code later. 🤝 Community & Course Updates We also share: What’s coming next in the DSA Patterns roadmap Updates about upcoming patterns & advanced problems How to stay active and grow with the Babua community Why learning together beats learning alone 💪 💡 Who is this video for? Beginners confused about what to learn next Students preparing for product-based companies Anyone following the DSA Patterns approach Babua community members 💙 📌 Subscribe for daily DSA pattern videos 📌 Like & Share to support free quality education 📌 Comment your doubts or BPL learnings — we read everything Consistency is greater than Motivation. Patterns is greater than Random practice. Babua way is greater than Everything else. 🔥 Let’s keep building together. CHAPTERS 00:00 - Introduction & Delay Apology 00:22 - Next Pattern Announcement: Heap 00:36 - Heap Playlist Pre-requisites 01:05 - In-Place Linked List Update 01:14 - BPL (Bhaiya Premier League) Winners Announcement 01:47 - Selection Process for Top 3 02:39 - Feedback for BPL Participants 03:37 - Community Migration: WhatsApp to Telegram 04:40 - Conclusion & Thank You #DSA #DSAPatterns #BabuaDSA #HeapPattern #DataStructures #Algorithms #CodingInterviews #InterviewPreparation #PlacementPreparation #ProductBasedCompanies #CompetitiveProgramming #LearnDSA #DSAInJava #DSAInPython #DSAInCpp #TopKProblems #PriorityQueue #Heaps #BPL #BabuaPremierLeague #CodingCommunity #CTOBhaiya #Programming #SoftwareEngineering Your Queries: dsa patterns course complete dsa course heap pattern prerequisites heap data structure priority queue dsa top k problems dsa dsa interview preparation babua dsa patterns cto bhaiya dsa placement preparation dsa product based companies dsa bpl winners babua babua premier league dsa roadmap 2026 learn data structures and algorithms coding interviews dsa in java dsa in python dsa for beginners competitive programming ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/okipv_XhrD0 https://www.techtube.co.in/tutorials/complete-dsa-patterns-course-my-4-times-revision-plan-to-master-dsa-patterns-pre-reqs-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/jznyIWT17mU/maxresdefault.jpg 🔥 Complete DSA Patterns Course | My 4 Times Revision Plan to master DSA Patterns + Pre-Reqs #dsa Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Revising DSA the right way is more important than just completing videos. In this video, I’ll show you a proven 14-day revision framework to master the Babua DSA Patterns Course 2025 using the official Revision Sheet, where you revise each lecture 4 times — scientifically spaced for maximum memory retention. Whether you’re preparing for placements, internships, FAANG, product-based companies, or want to build a rock-solid DSA foundation, this revision system will change your game. 🔥 What You’ll Learn in This Video Why revision is the real secret behind mastering DSA The 14-Day Cycle: Exact schedule for 4 revisions How to use the Revision Sheet to track progress How to revise smarter (not harder) The psychology behind spaced repetition How to integrate practice + notes + recall into the revision plan How toppers revise patterns like Sliding Window, Two Pointers, Fast–Slow Pointers, Heaps, DP & more How to avoid the 3 BIG mistakes students make during revision Daily routine to stay consistent during the 14-day sprint 🧠 14-Day | 4-Revision Method Breakdown Day 0 → Finish a lecture Day 1 → Revision 1 Day 3 → Revision 2 Day 7 → Revision 3 Day 14 → Revision 4 This schedule aligns with spaced repetition science and ensures long-term retention of every pattern. 📝 Who Should Watch This Video? Beginners struggling to retain DSA concepts Students preparing for placements in 2025–26 Anyone using the Babua DSA Patterns Course Those who want a structured + proven revision routine Learners who want to finish DSA once and remember it for life 🚀 Babua DSA Patterns Course 2025 A fully free, pattern-wise YouTube course that covers Sliding Window, Two Pointers, Fast–Slow Pointers, Prefix Sum, Hashing, Stack, Queue, Trees, Graphs, DP & more — everything with intuition. ❤️ If this video helps you Like, Share, Comment “I’m revising Babua style 🔥” And don’t forget to Subscribe for more DSA, System Design & Interview Prep! Hashtags: #BabuaDSAPatterns #DSARevision #DSARevisionPlan #14DayRevision #CodingInterviewPrep #CTOBhaiya #DSAinHindi #BabuaStyle #DSAPatternsCourse #PlacementPreparation #FAANGPrep #CodingInterviews #DSAPlaylist #DataStructuresAndAlgorithms #LearnDSA #RevisionStrategy #DSAMastery #DSARevisions #Hindicoding #DSA2025 Your Queries: Babua DSA Patterns DSA revision plan 14 day revision cycle CTO Bhaiya DSA revise DSA fast pattern wise DSA revision spaced repetition DSA coding interview prep Hindi DSA in Hindi placement preparation 2025 DSA patterns course Babua revision sheet revise lectures four times DSA roadmap coding interviews data structures and algorithms DSA playlist learn DSA fast interview preparation India product based companies prep CHAPTERS 00:00 Introduction #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/jznyIWT17mU https://www.techtube.co.in/tutorials/complete-dsa-patterns-in-90-days-course-crack-coding-interviews-in-3-months-day-090-intro 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/zvK49innOZY/maxresdefault.jpg Complete DSA Patterns In 90 Days Course | Crack Coding Interviews in 3 Months | Day 0/90 | Intro Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/0_Day/0_Intro_To_Patterns_Course.excalidraw.svg Welcome to the BABUA DSA Patterns Course 2025 — the first-of-its-kind structured course that helps you master 30+ coding patterns instead of chasing 1000 random problems. 🚀 Course Duration: 90 Days 🕔 Timing: Every evening at 5 PM IST 💻 Language: Java (main), Python (optional), Hindi explanations 💡 Why This Course? 500+ topic-wise videos covering every essential DSA pattern Learn how to identify the underlying logic behind any coding question Build mastery through pattern repetition, not question memorization Ideal for FAANG prep, SDE interviews, and college placements 📚 Course Structure: Pattern Theory: Clear explanation and intuition Question Practice: 15–20 LeetCode problems per pattern Revision: Recap and real interview mapping 📦 Free Materials: Pattern-wise playlists LeetCode problem lists PDF notes and checkpoints (shared in description/comments) 🌍 Stay Consistent: Post your progress on LinkedIn daily with #DSAin90Days and tag @CTOBhaiya Showcase your work — fewer jobs, higher visibility This is more than a DSA course — it’s a movement to help you think like an engineer, not a problem repeater. 🔥 Ready to start Day 0? Comment “Done” and join the challenge! CHAPTERS 00:00 Introduction 00:50 Why DSA Patterns Course 03:17 Course Structure 05:11 Video Timing 05:26 Course Materials 06:39 Follow Properly 09:03 Course Language 10:14 Thank you 10:54 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/zvK49innOZY https://www.techtube.co.in/tutorials/complete-dsa-patterns-in-90-days-course-q-a-pre-requisites-premium-onboarding-sheet-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/qWh1iOABTfY/maxresdefault.jpg Complete DSA Patterns In 90 Days Course | Q & A | Pre-Requisites + Premium + Onboarding Sheet #dsa Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/0_Day/0_Intro_To_Patterns_Course.excalidraw.svg Many students ask 👇 “Babua DSA Patterns course start karne se pehle kya aana chahiye?” “Premium course mein kya hoga?” “Kitna DSA already aana zaroori hai?” 👉 This video answers ALL of that clearly. In this video, I explain: ✅ Pre-requisites required before starting the Babua DSA Patterns Course ❓ Common questions & doubts students have about the Premium Course 📊 Topic-wise DSA knowledge required (how deep you should know each topic) 🎯 Who should start right now and who should prepare a bit more 🚀 How this course helps you move from random DSA → structured problem solving 🧠 Pre-Requisites for Babua DSA Patterns Course You DON’T need to be a DSA expert, but you should be comfortable with: Any one programming language (Java / C++ / Python) Basic understanding of: Variables & loops Functions Arrays & Strings Conditional logic 👉 If you can write basic code and understand loops, you’re ready. 📚 Topic-Wise DSA Knowledge Required (Minimum Level) You should have basic familiarity with: Arrays & Strings → traversal, indexing Recursion → understanding call stack Linked List → traversal, pointers Stack & Queue → basic operations Hashing → maps / sets usage Sorting → know how sorting works Binary Search → concept, not proofs 🚨 You do NOT need: Advanced math Competitive programming background Complex proofs Everything else is taught pattern-wise inside the course. 💎 Premium Course – FAQs Answered In this video, I also cover: 🤔 What extra value the Premium Babua Course provides 🧩 Why patterns matter more than random questions 👥 Mentorship, discussions & structured roadmap 📈 How premium students get faster clarity & confidence ⏳ How much time you should invest daily 🎯 Who Should Take This Course? ✔ Beginners struggling to understand DSA ✔ Students stuck after learning basic DSA topics ✔ Those who solve questions but don’t see patterns ✔ Anyone preparing for placements, interviews, or confidence in coding 🚀 Babua Philosophy “College fees 10 lakh hoti hai, Babua DSA patterns fees coffee se kam hoti hai ☕ Knowledge sabke liye honi chahiye.” 🔔 Next Steps Watch this video till the end Drop your doubts in comments Join the Babua community Start solving DSA the right way – pattern by pattern CHAPTERS 00:00 Introduction 00:50 Learn Patterns Wise DSA 01:20 My Truth of Topic Wise DSA 02:25 We dont have much time 03:58 Pre-Reqs for Day 0 Audience 08:11 Journey for Day 38 in Topic Wise DSA 10:47 DP and Graph is missing 14:08 The truth about Premium Course 16:40 Conclusion #BabuaDSA #DSAPatterns #DSAPreparation #CodingInterviews #PlacementPreparation #LearnDSA #DataStructures #Algorithms #DSARoadmap #InterviewPreparation #SoftwareEngineering #CodingForBeginners #DSACourse #CodingCareer #CTOBhaiya #PremiumCourse #ProblemSolving #Programming #CodingJourney #TechPlacements Your Queries: babua dsa patterns dsa prerequisites dsa patterns course learn dsa step by step dsa for beginners placement dsa roadmap data structures and algorithms interview preparation dsa coding interview questions dsa premium course cto bhaiya dsa patterns explained how much dsa needed dsa topic wise preparation dsa roadmap for placements coding for interviews software engineering preparation ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/qWh1iOABTfY https://www.techtube.co.in/tutorials/complete-git-and-github-tutorial 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/apGV9Kg7ics/maxresdefault.jpg Complete Git and GitHub Tutorial This tutorial will help you with using Git & GitHub for your personal projects and contributing to Open Source, with no prerequisites, in an easy to understand language. It starts from the very basics of Git & GitHub, covering all the essential commands, including concepts such as branching, pull requests, forking, etc. We also cover other concepts such as squashing, resolving merge conflicts, keeping your code in sync, and more. NOTE: - Windows users can use git bash, all the commands will work. - When using git for the first time, set the global configs using the commands: $ git config --global user.name "your_name" $ git config --global user.email your_email Git/GitHub cheat sheet: https://education.github.com/git-cheat-sheet-education.pdf Download Git: https://git-scm.com/downloads Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ Code & notes for DSA lectures: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00 Introduction 0:25 What is Git and Github? 3:45 Why are we using Git and Github? 5:15 Downloading Git 6:00 Structure of the Tutorial 6:18 Some basic Linux commands 8:22 Initializing a Git Repository 9:48 Making the first change 13:43 Staging the first change 14:40 Commiting the first change 16:12 Adding data to files 17:24 Removing changes from stage 18:14 Viewing the overall history of the project 18:52 Making few more commits 19:31 Removing a commit from the history of a project 21:35 Stashing changes 24:25 Popping Stash 25:00 Clearing Stash 25:26 Starting Github 26:10 Creating a new repository on Github 26:40 Connecting Remote Repository to Local Repository 28:05 Pushing local changes to remote repository 28:43 What are branches? 31:10 Use of branches 32:42 Making a new branch and switching to it (Learn Git Branching) 34:28 Merging branch to main (Learn Git Branching) 36:00 Pushing new changes to master branch 37:10 Working with Existing Projects 37:38 Why Fork and How to Fork? 39:00 Cloning the forked project to local 40:10 What is Upstream and adding it to local 41:00 What is a Pull Request? 45:28 Never commit on main branch & creating our first pull request 51:04 Removing a commit from the pull request by force pushing to it 52:56 Merging a Pull Request 53:28 Making forked project even with main project 59:46 Instructions on how to try doing these on your own 1:00:20 Squashing commits 1:01:59 Using the Rebase command 1:04:35 Using the hard flag to reset 1:05:11 Merge conflicts and how to resolve them? 1:11:00 What to do next? #git #github https://www.youtube.com/embed/apGV9Kg7ics https://www.techtube.co.in/tutorials/complete-java-development-spring-boot-microservices-spring-ai 2026-08-19 weekly 0.7 https://i.ytimg.com/vi/q6z_UCBM5Ek/maxresdefault.jpg Complete Java Development: Spring Boot, Microservices, Spring AI This is not just another Java video. This is a complete 63-hour roadmap designed to take you through the full journey of becoming a modern Java developer. In this comprehensive masterclass, we cover everything from Core Java and build tools like Maven and Gradle to JUnit, Git, DSA, JDBC, Servlets, JSP, REST APIs, Hibernate, Spring Framework, Spring Boot, Spring Security, JWT, OAuth2, logging, MongoDB, Docker, cloud deployment, Spring AI, Microservices, Kafka, Linux, Ansible, Jenkins, and Terraform. The goal of this video is simple: to provide you with a single structured, practical, and industry-focused learning path. Whether you are a beginner starting your Java journey, a student preparing for placements, or a developer looking to strengthen your backend and DevOps fundamentals, this video is built to help you understand how all these technologies connect in the real world. Instead of learning topics in isolation, you will see the bigger picture of modern Java development, from programming basics to frameworks, databases, security, deployment, cloud, AI integration, and automation tools used in professional environments. Timestamps: 00:00:00 - Core Java 13:32:51 - Maven 15:42:13 - Gradle 16:13:17 - JUnit 19:04:46 - Git 21:05:16 - DSA 26:12:28 - JDBC 28:39:36 - Servlets and JSP 32:08:43 - REST API and Web Services 34:43:17 - What Is an ORM Tool? 34:53:11 - Hibernate 35:44:49 - Spring Framework 37:38:20 - Spring REST API Using Spring Boot 38:55:14 - Spring JDBC 39:24:38 - Spring Data JPA 39:55:47 - Project Using Spring Boot MVC 41:40:32 - Spring Security 43:36:28 - JWT 44:40:32 - OAuth2 44:56:28 - Logging in Java Using Log4j 46:03:03 - Spring Boot MongoDB Full Project 47:18:23 - Docker for Java Developers 49:30:26 - Cloud Deployment 51:00:41 - Spring AI 51:47:59 - DeepSeek Open Source Using Ollama and Spring AI 52:08:08 - Microservices 54:15:20 - Spring Boot + Kafka 55:34:32 - Linux 57:10:25 - Ansible 58:56:44 - Jenkins 60:13:33 - Terraform https://www.youtube.com/embed/q6z_UCBM5Ek https://www.techtube.co.in/tutorials/complete-react-course-with-projects 2026-08-19 weekly 0.7 https://i.ytimg.com/vi/FxgM9k1rg0Q/maxresdefault.jpg Complete React course with projects Timestamp: 00:00:00 React Roadmap 00:30:17 Create React Projects 01:05:32 Understand the React flow and structure 01:41:30 Create your own React library and JSX 02:27:20 Why you need hooks and projects 02:55:38 Virtual DOM, fibre and reconciliation 03:16:58 Tailwind and props in React 03:48:31 A React interview question on counter 03:56:56 building our 1st react project 04:15:11 UseEffect, useRef and useCallback with 1 project 05:12:25 Custom hooks in react | currency project 06:14:03 React router crash course 07:18:38 Context API crash course with 2 projects https://www.youtube.com/embed/FxgM9k1rg0Q https://www.techtube.co.in/tutorials/concatenation-of-array-leetcode-1929-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/68isPRHgcFQ/maxresdefault.jpg Concatenation of Array - Leetcode 1929 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/concatenation-of-array 0:00 - Read the problem 0:30 - Drawing Explanation 2:40 - Coding Explanation leetcode 1929 #neetcode #leetcode #python https://www.youtube.com/embed/68isPRHgcFQ https://www.techtube.co.in/tutorials/conditionals-and-loops-calculator-program 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/ldYLYRNaucM/maxresdefault.jpg Conditionals and Loops + Calculator Program In this video, we discuss conditionals and loops in Java. We cover if-else statements, adding multiple checks, for, while, do-while loops. In addition to this, we also cover some questions to apply things into practice, and also create a calculator program. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00 Introduction ‌‍‍‍‌‌‍‍ ‌‍‍‌‍ ‌‍‍‌‍‍‌‍ ‌‍‍‌‍‌‍‌ ‌‍‍‌‍‍‍‌ ‌‌‍‍‌ ‌‌‍‍‍ 0:43 Creating New Project 1:28 Conditions 2:15 Syntax of if-else statements 2:54 E1 : if-else statements 4:56 Multiple if-else statements 7:20 Loops 8:46 Syntax of a "for loop" 9:28 E2 : for loop 12:40 E3 : for loop 14:23 Syntax of a "while loop" 14:48 E4 : while loop 17:00 When to use "for loop" and "while loop" 17:57 Syntax of a "do while loop" 18:22 E5 : do while loop 18:57 "while loop" vs "do while loop" 20:44 Solving Questions 20:51 Q1 : Largest number 28:12 Q2 : Alphabet case check 35:03 Q3 : Fibonacci numbers 43:00 Q4 : Counting occurrences 49:14 Q5 : Reverse 53:07 Calculator program 1:01:54 Outro #loops #placement #dsa #interviews https://www.youtube.com/embed/ldYLYRNaucM https://www.techtube.co.in/tutorials/construct-binary-tree-from-inorder-and-preorder-traversal-leetcode-105-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/ihj4IQGZ2zc/maxresdefault.jpg Construct Binary Tree from Inorder and Preorder Traversal - Leetcode 105 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/binary-tree-from-preorder-and-inorder-traversal 0:00 - Read the problem 3:50 - Drawing Explanation 12:33 - Coding Explanation leetcode 105 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python https://www.youtube.com/embed/ihj4IQGZ2zc https://www.techtube.co.in/tutorials/construct-quad-tree-leetcode-427-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/UQ-1sBMV0v4/maxresdefault.jpg Construct Quad Tree - Leetcode 427 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/construct-quad-tree 0:00 - Read the problem 0:50 - Drawing Explanation 7:00 - Coding Explanation leetcode 427 #neetcode #leetcode #python https://www.youtube.com/embed/UQ-1sBMV0v4 https://www.techtube.co.in/tutorials/container-with-most-water-leetcode-11-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/UuiTKBwPgAo/maxresdefault.jpg Container with Most Water - Leetcode 11 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/max-water-container 0:00 - Brute Force 5:25 - Optimal Solution 9:30 - Coding Optimal Solution Leetcode 11 #CodingInterview #leetcode #neetcode Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/UuiTKBwPgAo https://www.techtube.co.in/tutorials/contains-duplicate-ii-leetcode-219-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/ypn0aZ0nrL4/maxresdefault.jpg Contains Duplicate II - Leetcode 219 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/contains-duplicate-ii 0:00 - Read the problem 0:30 - Drawing Explanation 3:38 - Coding Explanation leetcode 219 #neetcode #leetcode #python https://www.youtube.com/embed/ypn0aZ0nrL4 https://www.techtube.co.in/tutorials/contains-duplicate-leetcode-217-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/3OamzN90kPg/maxresdefault.jpg Contains Duplicate - Leetcode 217 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ✔️ SPREADSHEET BLIND-75: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/duplicate-integer 0:00 - Read the problem 1:15 - Drawing Explanation 5:13 - Coding Explanation leetcode 217 This question was identified as a microsoft coding interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #microsoft #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/3OamzN90kPg https://www.techtube.co.in/tutorials/convert-binary-tree-to-doubly-linked-list-faang-interview-question 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/kNZ5VIkqReU/maxresdefault.jpg Convert Binary Tree to Doubly Linked List - FAANG Interview Question In this video, we'll learn how to convert a given Binary Tree to Doubly Linked List, a frequently asked question in FAANG interviews. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/AdvanceTreeQuestions - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org #dsa #placement #leetcode https://www.youtube.com/embed/kNZ5VIkqReU https://www.techtube.co.in/tutorials/copy-list-with-random-pointer-linked-list-leetcode-138 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/5Y2EiZST97Y/maxresdefault.jpg Copy List with Random Pointer - Linked List - Leetcode 138 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/copy-linked-list-with-random-pointer 0:00 - Read the problem 5:07 - Coding Explanation leetcode 138 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python https://www.youtube.com/embed/5Y2EiZST97Y https://www.techtube.co.in/tutorials/correct-binary-tree-that-has-two-nodes-swapped-faang-interview-question 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/CxNRKTp6_9s/maxresdefault.jpg Correct Binary Tree That Has Two Nodes Swapped - FAANG Interview Question In this video, we'll learn how to correct a Binary Tree that has two nodes swapped, a frequently asked question in FAANG interviews. 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Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/AdvanceTreeQuestions - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org #dsa #placement #leetcode https://www.youtube.com/embed/CxNRKTp6_9s https://www.techtube.co.in/tutorials/count-inversions-in-an-array-brute-and-optimal 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/AseUmwVNaoY/maxresdefault.jpg Count Inversions in an Array | Brute and Optimal Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Count Inversions in an Array | Brute and Optimal https://takeuforward.org/plus/dsa/problems/count-inversions Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/AseUmwVNaoY https://www.techtube.co.in/tutorials/count-sort-algorithm-theory-code 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/FOo820lJV1Y/maxresdefault.jpg Count Sort Algorithm - Theory + Code In this video in the sorting algorithm series, we delve deep into count sort. We will examine how the algorithm works, conduct a complexity analysis, explore optimization techniques, and provide code examples. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/CountSort - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org #dsa #placement https://www.youtube.com/embed/FOo820lJV1Y https://www.techtube.co.in/tutorials/count-subarray-sum-equals-k-brute-better-optimal 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/xvNwoz-ufXA/maxresdefault.jpg Count Subarray sum Equals K | Brute - Better -Optimal Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Count subarrays with given sum - https://takeuforward.org/plus/dsa/problems/count-subarrays-with-given-sum Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/xvNwoz-ufXA https://www.techtube.co.in/tutorials/counting-bits-dynamic-programming-leetcode-338-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/RyBM56RIWrM/maxresdefault.jpg Counting Bits - Dynamic Programming - Leetcode 338 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/counting-bits 0:00 - Read the problem 4:28 - Drawing Explanation 11:38 - Coding Explanation leetcode 338 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #counting #bits #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/RyBM56RIWrM https://www.techtube.co.in/tutorials/course-schedule-graph-adjacency-list-leetcode-207 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/EgI5nU9etnU/maxresdefault.jpg Course Schedule - Graph Adjacency List - Leetcode 207 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/course-schedule 0:00 - Read the problem 1:40 - Drawing Solution 10:50 - Coding solution leetcode 207 This question was identified as a Google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency/blob/master/Apple%20-%20LeetCode.pdf #leetcode #graph #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/EgI5nU9etnU https://www.techtube.co.in/tutorials/course-schedule-ii-topological-sort-leetcode-210 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Akt3glAwyfY/maxresdefault.jpg Course Schedule II - Topological Sort - Leetcode 210 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/course-schedule-ii 0:00 - Read the problem 2:25 - Drawing explanation 10:40 - Coding explanation leetcode 210 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #graph #topological #python https://www.youtube.com/embed/Akt3glAwyfY https://www.techtube.co.in/tutorials/course-schedule-iv-leetcode-1462-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/cEW05ofxhn0/maxresdefault.jpg Course Schedule IV - Leetcode 1462 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/course-schedule-iv 0:00 - Read the problem 1:10 - Drawing Explanation 11:52 - Coding Explanation leetcode 1462 #neetcode #leetcode #python https://www.youtube.com/embed/cEW05ofxhn0 https://www.techtube.co.in/tutorials/cycle-sort-amazon-google-microsoft-interview-questions 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/JfinxytTYFQ/maxresdefault.jpg Cycle Sort - Amazon, Google, Microsoft Interview Questions One of the most important video for Amazon, Google and Microsoft interviews where we cover the cyclic sort algorithm and solve LeetCode easy till hard interview problems in the most easy to understand manner. 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Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 00:00:00 Teaser 00:00:08 Introduction 00:01:10 Cyclic Sort 00:04:26 Algorithm for Cyclic Sort 00:10:09 Worst Case 00:14:36 Code for Cyclic Sort 00:21:06 Q1 : Missing Number 00:37:56 Q2 : Find All Numbers Disappeared in an Array 00:51:30 Q3 : Find the Duplicate Number 01:04:15 Q4 : Find All Duplicates in an Array 01:11:40 Q5 : Set Mismatch 01:21:03 Q6 : First Missing Positive 01:35:19 Outro #sorting #placement #dsa #interviews https://www.youtube.com/embed/JfinxytTYFQ https://www.techtube.co.in/tutorials/daily-temperatures-monotonic-stack-leetcode-739-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/cTBiBSnjO3c/maxresdefault.jpg Daily Temperatures - Monotonic Stack - Leetcode 739 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/daily-temperatures 0:00 - Read the problem 1:51 - Drawing Explanation 9:25 - Coding Explanation leetcode 739 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #monotonic #stack #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/cTBiBSnjO3c https://www.techtube.co.in/tutorials/day-1090-2130-maximum-twin-sum-of-a-linked-list-fast-slow-pointers-pattern-dsa-pattern 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/t40HN4Rla30/maxresdefault.jpg Day 10/90 |⚡2130. Maximum Twin Sum of a Linked List | Fast & Slow Pointers Pattern | DSA Pattern Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/10_Day Unlock the intuition behind Maximum Twin Sum of a Linked List — a beautiful problem that combines fast & slow pointers, middle-finding, and linked list reversal to achieve an optimal O(n) time, O(1) space solution. In this video, we break down: ✅ What is a Twin Pair in a Linked List? Twin nodes are symmetric around the center: first & last second & second last and so on… ✅ Fast & Slow Pointer Technique Learn how to use the tortoise & hare algorithm to find the middle of the linked list efficiently. ✅ Reversing the Second Half We reverse the second half of the list in-place so we can pair the first half and second half easily. ✅ Finding the Maximum Twin Sum Walk through the list one node at a time and compute the highest twin pair sum. ✅ Time & Space Complexity Breakdown ✔️ O(n) time ✔️ O(1) extra space ✔️ Most optimal solution for interviews Perfect for FAANG, product-based companies, and all coding interview preparation learners. This problem is commonly asked to test linked list understanding, pointers, and in-place transformations. 🚀 What You'll Learn Intuition behind twin pairs How fast & slow pointers help in splitting a linked list Why in-place reversal makes the solution efficient Step-by-step dry run with diagrams Clean code implementation (Java, Python, C++, JavaScript) 🎯 Ideal For Students preparing for coding interviews LeetCode beginners & intermediate coders DSA learners following CTO Bhaiya / Babua DSA Patterns Course Anyone wanting to master linked list techniques Hashtags: #LinkedList #TwinSum #FastAndSlowPointers #DSAPatterns #BabuaDSAPatterns #CTOBhaiya #CodingInterviewPrep #LeetCode #DataStructuresAndAlgorithms #TwoPointers #LinkedListReversal #FAANGPreparation #Striver #TakeUForward #ApnaCollege #LoveBabbar #NamasteDev Your Queries maximum twin sum linked list twin sum fast slow pointer linked list reversal explained leetcode twin sum solution fast and slow pointer linked list maximum twin sum cto bhaiya babua dsa patterns linked list interview questions find middle linked list reverse second half linked list twin pair sum problem leetcode 2130 solution dsa patterns 2025 coding interview linked list problems striver linked list CHAPTERS 00:00 Introduction 03:17 2130. Maximum Twin Sum of a Linked List - Theory 04:34 2130. Maximum Twin Sum of a Linked List - Approach 1 - Theory 07:48 2130. Maximum Twin Sum of a Linked List - Approach 1 - Code 11:10 2130. Maximum Twin Sum of a Linked List - Approach 2 - Theory 15:08 2130. Maximum Twin Sum of a Linked List - Approach 2 - Code 22:20 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: Fast and slow pointers Hare and Tortoise algorithm Floyd cycle detection Split circular linked list Palindrome linked list Find duplicate number Cycle detection array Linked list midpoint DSA patterns Babua DSA Patterns CTO Bhaiya LeetCode problems Coding interview preparation FAANG interview prep Striver Take U Forward Apna College Love Babbar Namaste Dev DSA playlist Linked list cycle logic Two pointer technique ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/t40HN4Rla30 https://www.techtube.co.in/tutorials/day-1190-457-circular-array-loop-fast-slow-pointers-pattern-dsa-pattern 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/nFZ1mysCZc0/maxresdefault.jpg Day 11/90 |⚡457. Circular Array Loop | Fast & Slow Pointers Pattern | DSA Pattern Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/11_Day 📌 Day 11 – Circular Array Loop | Fast & Slow Pointer | Babua DSA Patterns 2025 Welcome to Day 11 of the Babua DSA Patterns Course, where we crack one of the most interesting and tricky interview problems — Circular Array Loop (LeetCode 457). In this video, we use the Fast & Slow Pointer (Hare & Tortoise) pattern to detect cycles in a circular array without modifying the array and without extra space. If you understand this pattern well, you can solve many cycle-related problems in arrays and linked lists with ease. 🚀 What You’ll Learn ✔️ Why normal two-pointer logic fails in circular arrays ✔️ How to detect a loop when movement can be forward or backward ✔️ How to ensure the loop is not of length 1 ✔️ Handling direction changes (+ve to –ve) ✔️ Fast & Slow Pointers intuition step-by-step ✔️ Full dry run + optimal code ✔️ How this problem improves your cycle detection foundation 🎯 Interview Skills Boosted Cycle detection in array-based structures Pointer simulation Handling complex wrap-around behaviour Understanding direction constraints When & how to break cycles 🧠 Why This Problem Is Important Circular Array Loop is a FAANG-level pointer problem that tests: ➡️ logic ➡️ direction handling ➡️ cycle intuition ➡️ edge-case mastery If you master this, cycle problems will start looking easy. 📚 Part of Babua DSA Patterns (90 Days) This video is part of a structured journey where we solve the most important patterns for FAANG and top product-based companies — explained in simple Hindi for every level of student. 👍 If you find this video helpful, please Like, Comment, and Subscribe! Your support motivates us to create more high-quality DSA content ❤️ Hashtags: #CircularArrayLoop #FastAndSlowPointers #TwoPointerPattern #DSAPatterns #BabuaDSAPatterns #CTOBhaiya #DSAin90Days #CycleDetection #LeetCode457 #CodingInterviewPrep #FAANGInterviewPrep #DataStructuresAndAlgorithms #DSAforBeginners #AlgorithmPatterns #PointerTechniques #LearnDSA #CompetitiveProgramming #ArrayProblems #HareAndTortoiseAlgorithm #NextGenCTO Your Queries maximum twin sum linked list twin sum fast slow pointer linked list reversal explained leetcode twin sum solution fast and slow pointer linked list maximum twin sum cto bhaiya babua dsa patterns linked list interview questions find middle linked list reverse second half linked list twin pair sum problem leetcode 2130 solution dsa patterns 2025 coding interview linked list problems striver linked list CHAPTERS CHAPTERS 00:00 Introduction 04:50 Theory 16:39 Approach 1 - Code 39:00 Approach 2 - Theory 43:35 Approach 2 - Code 46:33 Fast & Slow Pointer - Approach 3 - Theory 50:20 Fast & Slow Pointer - Approach 3 - Code 56:15 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: Circular Array Loop Fast and Slow Pointer Hare and Tortoise algorithm LeetCode 457 cycle detection array Babua DSA Patterns CTO Bhaiya DSA in 90 Days two pointer pattern fast slow pointer explanation circular loop detection directional array movement coding interview prep FAANG interview prep DSA course Hindi data structures and algorithms array cycle problem NextGen CTO pointer problems interview questions ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/nFZ1mysCZc0 https://www.techtube.co.in/tutorials/day-1290-sliding-window-theory-fixed-dynamic-window-dsa-patterns-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/wAQI89N44u4/maxresdefault.jpg Day 12/90 |⚡Sliding Window Theory (Fixed + Dynamic Window) | DSA Patterns #dsa Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/12_Day 📌 Day 12/90 — Sliding Window Theory | Babua DSA Patterns Course 2025 Welcome to Day 12 of the Babua DSA Patterns Course 2025! In today’s video, we dive deep into one of the most powerful O(N) patterns in coding interviews — the Sliding Window. If you’ve ever struggled with subarray problems, minimum/maximum window lengths, dynamic window resizing, or optimising brute-force approaches… this video will completely change the way you think about arrays and strings. We break everything down Babua-style — clear intuition, real-world analogies, visuals, and step-by-step reasoning. 🔥 What You’ll Learn Today ✔ What is the Sliding Window pattern? ✔ Fixed window vs dynamic window ✔ When and why Sliding Window beats brute force ✔ Core intuition behind expanding and shrinking the window ✔ Common mistakes beginners make ✔ How to think like an interviewer for subarray problems ✔ Templates and thought flow for solving ANY sliding window question 🧠 Why Sliding Window Matters Companies like FAANG, startups, and product-based firms love asking problems around: Minimum subarray length Longest substring without repeating characters Maximum sum subarray size K Variable size windows String window frequency matching Master this pattern, and you unlock 10–15 high-value interview problems instantly. 🔍 Babua-Style Intuition Included We don’t just solve problems — we build intuition in your bones: How windows behave Why we shrink only when required Relation to the brute-force double loop How to identify window boundaries How to track conditions efficiently 🚀 Designed for 2025 Placements Short. Crisp. Visual. Interview-oriented. Perfect for anyone preparing for FAANG, MNCs, startups, or college placements. 📚 Part of the 90-Day DSA Pattern Series This video is part of the biggest FREE pattern-wise DSA course on YouTube by CTO Bhaiya. Make sure you complete all previous days for maximum impact. ❤️ If this helped you, don’t forget to Like + Share + Subscribe! Drop a “Day 12 Done 💪” in the comments to stay consistent. Hashtags: #SlidingWindow #SlidingWindowPattern #BabuaDSAPatterns #DSAPatterns2025 #CTOBhaiya #DSAin90Days #CodingInterviewPrep #DSAforPlacements #FAANGInterviewPrep #DataStructuresAndAlgorithms #LearnDSA #CodingPatterns #SubarrayProblems #AlgorithmIntuition #TechInterviews #DSAPlaylist #TwoPointers #CompetitiveProgramming #NamasteDev #LeetCodePatterns Your Queries sliding window dsa explanation sliding window pattern babua dsa sliding window theory cto bhaiya sliding window intuitive explanation sliding window pattern for interviews fixed and variable sliding window sliding window vs brute force minimum subarray sum sliding window longest substring sliding window sliding window leetcode patterns sliding window dsa in 90 days sliding window problems for placements CHAPTERS 00:00 Introduction 00:48 Intuition 07:55 Formal Definition 16:05 Fixed-size window 33:10 Dynamic (Variable-sized) window 57:33 Intuition of Dynamic Window 01:03:00 Identifying Sliding Window Problems 01:04:37 Fixed Window Template 01:07:30 Dynamic Window Template 01:09:35 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: Circular Array Loop Fast and Slow Pointer Hare and Tortoise algorithm LeetCode 457 cycle detection array Babua DSA Patterns CTO Bhaiya DSA in 90 Days two pointer pattern fast slow pointer explanation circular loop detection directional array movement coding interview prep FAANG interview prep DSA course Hindi data structures and algorithms array cycle problem NextGen CTO pointer problems interview questions ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/wAQI89N44u4 https://www.techtube.co.in/tutorials/day-1390-3-sliding-window-problems-that-appear-in-every-coding-interview-dsa-patterns-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/D4kHj9FMcK8/maxresdefault.jpg Day 13/90 | ⚡3 Sliding Window Problems That Appear in Every Coding Interview! | DSA Patterns #dsa Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/13_Day 📘 Day 13/90 – Sliding Window Medium Problems | Babua DSA Patterns 2025 Welcome to Day 13 of the Babua DSA Patterns Course 2025! In today’s video, we go deeper into the Sliding Window Pattern by solving three important medium-level problems that frequently appear in coding interviews at FAANG, product-based companies, and top startups. These problems will help you master window expansion, contraction, and maintaining conditions like size, sum, and uniqueness — all essential skills for acing array-based questions. 🔥 What We Cover Today 1️⃣ Max Sum Subarray of Size K Learn how to efficiently maintain a fixed-size window and calculate the maximum sum in O(n) time. 2️⃣ 209. Minimum Size Subarray Sum Master the shrinking window technique to find the smallest window with sum ≥ target — a must-do interview problem. 3️⃣ 2461. Maximum Sum of Distinct Subarrays of Length K A sliding window + hashing combo problem — learn how to track distinct elements and compute the max sum seamlessly. 🌟 What You’ll Learn How and when to expand or shrink a sliding window How to maintain state inside a window (sum, count, uniqueness) How to turn O(n²) brute force into O(n) optimized code Core patterns behind fixed window, variable window, and distinct-element window problems Intuition-first explanations, diagrams, and clean code 🎯 Why This Video is Important These three problems together build your sliding window muscle. Once you understand these techniques, you can solve 50+ other array and string problems with ease. Perfect for students preparing for: FAANG interviews Product-based company hiring Internship rounds Placements & off-campus Anyone aiming to master DSA patterns the right way 🔔 Don’t Miss This is part of the ongoing 90-Day Babua DSA Patterns Course. Make sure you are watching the series in order for maximum benefit! Like, Share & Subscribe for daily DSA pattern videos 🚀 Hashtags: #SlidingWindow #DSAPatterns #BabuaDSAPatterns #MaxSumSubarray #MinimumSizeSubarraySum #DistinctSubarrays #SlidingWindowProblems #CodingInterviewPrep #LeetCode209 #LeetCode2461 #DSAinHindi #CTOBhaiya #DataStructuresAndAlgorithms #FAANGInterviewPrep #ProductBasedCompanyPrep #PlacementPreparation #DSAPlaylist #CodingInHindi #LearnDSA #90DaysDSAChallenge Your Queries sliding window dsa tutorial sliding window medium problems max sum subarray of size k explained minimum size subarray sum leetcode 209 solution maximum sum of distinct subarrays length k leetcode 2461 sliding window pattern for interviews dsa patterns 2025 babua course cto bhaiya sliding window array problems sliding window placement coding questions sliding window sliding window variable size explanation fixed window vs variable window dsa CHAPTERS 00:00 Introduction 02:50 Max Sum Subarray of size K - Theory 09:35 Max Sum Subarray of size K - Code 14:27 2461. Maximum Sum of Distinct Subarrays with Length K - Theory - Approach 1 20:57 2461. Maximum Sum of Distinct Subarrays with Length K - Code - Approach 1 29:28 2461. Maximum Sum of Distinct Subarrays with Length K - Theory - Approach 2 48:32 2461. Maximum Sum of Distinct Subarrays with Length K - Code - Approach 2 01:02:04 209. Minimum Size Subarray Sum - Theory - Approach 1 01:07:51 209. Minimum Size Subarray Sum - Code - Approach 1 01:10:48 209. Minimum Size Subarray Sum - Theory - Approach 2 01:21:58 209. Minimum Size Subarray Sum - Code - Approach 2 01:31:30 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/D4kHj9FMcK8 https://www.techtube.co.in/tutorials/day-1490-3-important-sliding-window-problems-every-coder-must-master-dsa-patterns-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/CYY-Zy7HTLg/maxresdefault.jpg Day 14/90 | ⚡3 IMPORTANT Sliding Window Problems Every Coder Must Master! | DSA Patterns #dsa Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/14_Day 🔥 Day 14/90 – Sliding Window Interview Problems Explained | Babua DSA Patterns 2025 Welcome back to the Babua DSA Patterns Course 2025! In today’s video, we tackle three extremely popular Sliding Window interview questions that appear in FAANG + top product-based companies. We break each problem down with intuition → dry run → pattern recognition → optimized O(n) solution so you not only solve them—but fully understand why Sliding Window works so beautifully. 💡 What We Cover Today 1️⃣ 219. Contains Duplicate II Learn how to efficiently check for nearby duplicates using a fixed sliding window + HashSet. Perfect for understanding window expansion + contraction logic. 2️⃣ 643. Maximum Average Subarray I A clean & elegant sliding window example showing how to compute maximum averages in linear time using window sum updates. If you are switching from brute force → optimized, this problem builds confidence quickly. 3️⃣ 3. Longest Substring Without Repeating Characters A must-know classic! Master the variable-size sliding window technique using a HashMap to track indices and ensure no repeating characters. This problem teaches the real power of sliding windows. 🚀 Why This Video Matters By the end of this session, you’ll deeply understand: When to use fixed vs. variable window sizes How to use HashSet/HashMap inside window logic How to avoid O(n²) brute force How to convert constraints → optimal patterns This builds the foundation for the upcoming medium/hard-level sliding window problems. 🔔 Subscribe & Continue Your 90-Day DSA Journey New pattern-based videos daily. Let’s crack coding interviews—Babua style. 💪🔥 Hashtags: #SlidingWindow #SlidingWindowPattern #DSAPatterns #BabuaDSAPatterns #CTOBhaiya #CodingInterviewPrep #LeetCode #LeetCodeSolutions #ContainsDuplicateII #MaximumAverageSubarray #LongestSubstringWithoutRepeatingCharacters #DSAinHindi #CodingInHindi #DataStructuresAndAlgorithms #InterviewPreparation #FAANGInterviewPrep #ProgrammingTips #LearnDSA #DSA2025 #BabuaStyleDSA #TechInterviews #AlgorithmPatterns #TwoPointers #HashMap #CompetitiveProgramming Your Queries sliding window sliding window pattern dsa patterns babua dsa patterns cto bhaiya contains duplicate II leetcode 219 maximum average subarray leetcode 643 longest substring without repeating characters leetcode 3 coding interview questions dsa in hindi leetcode solutions data structures and algorithms faang interview prep sliding window explained variable window fixed window hashset hashmap coding interview preparation 2025 CHAPTERS 00:00 Introduction 01:40 219. Contains Duplicate II - (Approach 1) Theory 07:02 219. Contains Duplicate II - (Approach 1) Code 13:32 219. Contains Duplicate II - (Approach 2) Theory 18:32 219. Contains Duplicate II - (Approach 2) Code 24:56 643. Maximum Average Subarray I - Theory 33:00 643. Maximum Average Subarray I - Code 38:20 3. Longest Substring without Repeating Characters - Theory - Approach 1 45:57 3. Longest Substring without Repeating Characters - Code - Approach 1 51:24 3. Longest Substring without Repeating Characters - Theory - Approach 2 01:05:14 3. Longest Substring without Repeating Characters - Code - Approach 2 01:11:04 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/CYY-Zy7HTLg https://www.techtube.co.in/tutorials/day-1590-rabin-karp-repeated-dna-sequences-explained-sliding-window-rolling-hash-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Mtwto_-RK10/maxresdefault.jpg Day 15/90 | ⚡ Rabin-Karp + Repeated DNA Sequences Explained (Sliding Window + Rolling Hash) #dsa Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/15_Day 📌 Day 15/90 – Babua DSA Patterns 2025 | Rabin–Karp + Repeated DNA Sequences Explained (Sliding Window + Rolling Hash) Welcome to Day 15 of the Babua DSA Patterns Course 2025! In this video, we go deep into one of the most powerful string-searching techniques used in interviews and competitive programming — Rabin–Karp Algorithm — and apply it to the famous LeetCode problem Repeated DNA Sequences using sliding window + rolling hash. If you’ve ever struggled with: how rolling hash actually works why Rabin–Karp is O(n) average how to detect repeats efficiently how sliding window helps in hashing substrings how to build intuition for pattern searching …this video will make everything crystal clear — Babua–style! 😎🔥 🚀 What You’ll Learn in This Video 🔹 Rabin–Karp Algorithm Intuition Why hashing helps in fast substring search How rolling hash avoids re-computing the entire substring Collision handling (simple explanation) 🔹 Sliding Window + Rolling Hash Turning every substring into a number Efficient updates when window slides Why this combo is perfect for DNA sequence problems 🔹 LeetCode Problem Solved 🔸 187. Repeated DNA Sequences (LeetCode) Understanding why fixed-length window = perfect How to detect repeats in O(n) Clean code + dry run + edge cases 🔹 Big Interview Takeaways When to use Rabin–Karp When not to use hashing How interviewers expect you to explain patterns 🧠 Why This Video Matters Most students learn Rabin–Karp only as a formula — but in this video, we break it down visually so that: You understand, not memorise You connect Rabin–Karp with sliding window pattern You immediately apply it to a real LeetCode problem This is exactly how FAANG + top product companies test pattern-wise understanding. 📚 Babua DSA Patterns Course – Day 15/90 We’ve finished: Two Pointers Sliding Window (basic → medium → advanced) Next: hashing, prefix tricks, and advanced string techniques. If you're following the 90-day journey, don’t forget to update your revision tracker! 💬 Comment below: Which string algorithm should I teach next — KMP, Z-Algorithm, or Boyer–Moore? 🔔 Subscribe for all 90 days Daily DSA videos, clear intuition, diagrams, and patterns-based learning for SDE interviews in 2025. Hashtags: #RabinKarp #RabinKarpAlgorithm #SlidingWindow #RollingHash #StringMatching #RepeatedDNASequences #LeetCode187 #BabuaDSAPatterns #DSAin90Days #CTOBhaiya #CodingInterviewPrep #SDEInterviewPreparation #FAANGInterviews #LeetCodePatterns #DSAPatterns2025 #StringAlgorithms #HashingInDSA #AlgorithmIntuition #DataStructuresAndAlgorithms #CompetitiveProgramming Your Queries Rabin Karp algorithm Rabin Karp rolling hash Repeated DNA sequences leetcode LeetCode 187 solution Sliding window string problems Rolling hash explained String hashing DSA Babua DSA Patterns 2025 CTO Bhaiya DSA DSA in 90 Days Coding interview strings Rabin Karp intuition Substring search algorithm LeetCode patterns SDE interview prep Pattern wise DSA Sliding window hashing DNA sequence problem CHAPTERS 00:00 Introduction 01:08 187. Repeated DNA Sequences - (Approach 1) Theory 13:13 187. Repeated DNA Sequences - (Approach 1) Code 19:12 Optimisation Identification 23:05 Rabin Karp Algorithm 34:39 Approach 2 - Theory 39:50 Approach 2 - Code 57:54 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Mtwto_-RK10 https://www.techtube.co.in/tutorials/day-1690-2-important-sliding-window-problems-for-interviews-dsa-patterns-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/iV7fGqFnaYI/maxresdefault.jpg Day 16/90 | ⚡2 IMPORTANT Sliding Window Problems for Interviews! | DSA Patterns #dsa Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/16_Day 📌 Day 16/90 — Sliding Window Pattern: Fruits Into Baskets + Longest Substring Without Repeating Characters | Babua DSA Patterns 2025 Master two of the MOST IMPORTANT sliding window interview questions that appear repeatedly in FAANG, product-based companies, and top tech startups! In this video, we break down two powerful problems using the HashMap + Dynamic Window Expansion technique — with pure intuition, step-by-step dry run, and clean code. 🍎 Problem 1: Fruits Into Baskets (LeetCode) A classic variable-size sliding window problem that teaches you how to: ✔ Track frequency of elements using a HashMap ✔ Maintain a window containing at most 2 distinct elements ✔ Expand + shrink the window optimally ✔ Achieve O(n) time efficiency This problem forms the foundation of many advanced sliding window patterns. 🔐 Problem 2: Longest Substring Without Repeating Characters The ICONIC sliding window + HashMap question every engineer MUST know! You will learn how to: ✔ Maintain a window with unique characters ✔ Avoid brute force using a smart left pointer ✔ Understand the logic behind “removing duplicates from the window” ✔ Use HashMap to store last seen indices ✔ Achieve optimal O(n) solution 🎯 What You’ll Learn Today When to use HashMap in sliding window problems How to identify variable window patterns How to think in terms of expand → check → shrink How interviewers expect you to reason during problem-solving Clean Java/Python code walkthroughs for both problems ⏳ Perfect for: DSA beginners, interview prep students, FAANG aspirants, and anyone following the Babua DSA Patterns 90-Day Course. If you found this helpful, LIKE ❤️, SUBSCRIBE 🔔, and continue the journey with CTO Bhaiya! Hashtags: #SlidingWindow #DSAPatterns #BabuaDSA #CTOBhaiya #LeetCode #CodingInterview #FruitsIntoBaskets #LongestSubstringWithoutRepeatingCharacters #TwoPointers #HashMapDSA #DSAinHindi #JavaCoding #PythonCoding #FAANGInterviewPrep #PlacementPreparation #90DaysDSAChallenge #BabuaStyleDSA #CodingForBeginners #InterviewPreparation #TechInterviews Your Queries sliding window fruits into baskets longest substring without repeating characters hashmap sliding window leetcode solutions dsa patterns 2025 babua dsa course cto bhaiya coding interview questions sliding window intuition variable size window problems leetcode javascript leetcode java leetcode python interview preparation faang interview prep placement prep coding patterns substring problems arrays and strings dsa CHAPTERS 00:00 Introduction 03:39 3. Longest Substring without repeating characters - Map Approach 14:27 904. Fruit Into Basked - (Approach 1) Theory 24:20 904. Fruit Into Basked - (Approach 1) Code 29:12 904. Fruit Into Basked - (Approach 2) Theory 43:31 904. Fruit Into Basked - (Approach 2) Code 50:20 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/iV7fGqFnaYI https://www.techtube.co.in/tutorials/day-1790-sliding-window-mastery-1838-1343-two-must-do-interview-problems-dsa-patterns-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/yhmTk_HAiwA/maxresdefault.jpg Day 17/90 |⚡Sliding Window Mastery: 1838 + 1343 - Two MUST-DO Interview Problems | DSA Patterns #dsa Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/17_Day 📌 Day 17/90 — Babua DSA Patterns Course 2025 Sliding Window Mastery: 1838 + 1343 — Two MUST-DO Interview Problems In today’s lecture, we deep-dive into two extremely important interview problems based on the Sliding Window Pattern. These questions are frequently asked in FAANG, product-based companies, and top tech interviews. 🚀 What We Cover in This Video 1️⃣ Leetcode 1838 — Frequency of the Most Frequent Element (Medium) A beautiful problem combining: Sorting Prefix sum / running window sum Expanding & shrinking window technique You’ll understand how to make all elements in a window equal using minimum operations and maximize the frequency of any number. 2️⃣ Leetcode 1343 — Number of Subarrays of Size K and Average ≥ Threshold (Easy/Medium) A perfect introduction to fixed-size sliding windows: Maintain window sum in O(1) time Efficiently count all valid subarrays Avoid brute force O(n·k) pitfalls This is one of the BEST beginner-friendly window questions to build strong intuition. 🎯 Why This Video Is Important ✔ Builds foundational intuition for sliding window ✔ Helps you solve medium–hard interview problems confidently ✔ Strengthens pattern understanding for the next upcoming topics ✔ Step-by-step explanation + dry run + code walkthrough Babua-style 💛 🧠 Who Should Watch This Video? Students preparing for placements Working professionals brushing up interviews Anyone following the Babua DSA Patterns 90-Day Course Anyone confused between fixed window & variable window approaches 🔥 Bonus At the end, we discuss: When to use fixed-size windows When to use expandable windows with shrinking Common sliding-window mistakes and how to avoid them 📚 Babua DSA Patterns 2025 Playlist 👉 Watch all lectures in order for maximum impact! If you found this video helpful, LIKE, COMMENT, and SUBSCRIBE to support the Babua community. Let’s crack DSA the smartest way — Pattern-wise, Babua-style! 🚀💛 Hashtags: #BabuaDSAPatterns #DSAinHindi #SlidingWindowPattern #LeetCode1838 #LeetCode1343 #CodingInterviewPreparation #DSATutorial #DSAProblems #DSAforPlacements #InterviewPreparation #CodingHelpHindi #TechInterviews #FAANGInterviews #ProductBasedCompanyPrep #CTOBhaiya #DSAin90Days #LearnDSA #CompetitiveProgramming #BabuaStyleDSA #DataStructuresAndAlgorithms Your Queries babua dsa patterns babua dsa day 17 sliding window pattern sliding window tutorial leetcode 1838 solution frequency of most frequent element leetcode 1343 solution number of subarrays size k average threshold dsa in hindi coding interview questions sliding window problems dsa for placements cto bhaiya dsa babua style dsa leetcode interview problems dsa 90 days course sliding window explanation coding preparation hindi CHAPTERS 00:00 Introduction 01:39 LeetCode 1343 - Approach 1 - Theory 07:34 LeetCode 1343 - Approach 1 - Code 11:39 LeetCode 1343 - Approach 2 - Theory 15:20 LeetCode 1343 - Approach 2 - Code 19:39 LeetCode 1838 - Approach 1 - Theory 36:36 LeetCode 1838 - Approach 1 - Code 42:27 LeetCode 1838 - Approach 2 - Theory 54:11 LeetCode 1838 - Approach 2 - Code 01:02:02 LeetCode 1838 - Follow Up Interview Question 01:09:24 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/yhmTk_HAiwA https://www.techtube.co.in/tutorials/day-1890-leetcode-424-longest-repeating-character-replacement-brute-force-sliding-window 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Z4SoQHqMb7k/maxresdefault.jpg Day 18/90 | LeetCode 424 - Longest Repeating Character Replacement | Brute Force + Sliding Window Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/18_Day **📌 Day 18/90 — Babua DSA Patterns Course 2025 LeetCode 424 — Longest Repeating Character Replacement | Brute Force + Sliding Window** In today’s lecture, we revise one of the most important interview questions in the Sliding Window pattern — LeetCode 424: Longest Repeating Character Replacement. We start by understanding the brute-force approach to build the core intuition — how to check every substring, how to compute the max frequency character, and why the brute force solution becomes too slow. Then we transition into the optimized dynamic sliding window approach, where we track the frequency of the most frequent character inside the window to decide when the window is valid. This optimization drastically reduces the complexity and forms the backbone of many advanced interview problems. 🔹 What you’ll learn today: Why brute force fails and how to analyze its complexity The real intuition behind replacing characters How to maintain frequency counts in constant time Why we never shrink the window unnecessarily How to derive the sliding window formula: (window length – maxFreq) ≤ k Full step-by-step dry run + pattern revision This problem is a MUST-DO for FAANG interviews and appears repeatedly in sliding-window pattern questions. Join in and revise Babua-style — simple, intuitive, and fun! 😄🔥 Hashtags: #leetcode424 #characterreplacement #slidingwindow #bruteforcevsoptimized #babuaDSApatterns #ctoBhaiyaDSA #dsa90dayscourse #slidingwindowexplained #faanginterviewprep #codinginterviewquestions #dsaforbeginners #dsaforplacements #leetcodepatterns #dynamicwindowtechnique #codinginterviewprep #datastructuresandalgorithms #softwareengineeringinterview #slidingwindowintuition #babuaStyleDSA #codingwithctoBhaiya Your Queries leetcode 424 longest repeating character replacement sliding window brute force approach optimized solution dynamic sliding window babua dsa patterns cto bhaiya dsa dsa 90 days course coding interview questions faang interview prep leetcode sliding window problems character replacement explanation dsa for beginners dsa for placements data structures and algorithms coding interview preparation sliding window intuition CHAPTERS 00:00 Introduction 01:39 LeetCode 424 - Approach 1 - Theory 19:51 LeetCode 424 - Approach 1 - Code 28:48 LeetCode 424 - Approach 2 - Theory 42:32 LeetCode 424 - Approach 2 - Code 51:53 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Z4SoQHqMb7k https://www.techtube.co.in/tutorials/day-190-two-pointers-theory-dsa-pattern-1-dsa-pattern-you-must-know-twopointers 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Elnhh8cC2vM/maxresdefault.jpg Day 1/90 |⚡ Two Pointers Theory - DSA Pattern #1 | DSA Pattern You Must Know! #twopointers Sheet Link: https://app.nextgen-cto.in/login JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/1_Day/1_Two_Pointer_Pattern_Theory.excalidraw.svg Learn the Two Pointer Pattern — one of the most powerful DSA techniques used to optimize problems that involve arrays, strings, and linked lists. In this video, we break down: ✅ The exact definition of two pointers 🔁 Three pointer movements – toward, away, and fast-slow 🧩 Examples: Palindrome check, target sum, and middle node 🚀 Code templates for both single and double input cases ⚙️ Time & space optimization: from O(n²) → O(n), O(n) → O(1) 🎓 This is Day 1 of the Babua DSA Patterns Course (90 Days to FAANG) — mark it done and comment “Day 1 – Done” when you finish! Hashtags: #TwoPointers #DSAPatterns #CodingInterviewPrep #BabuaDSAPatterns #CTOBhaiya #LearnDSA #FAANGPreparation #CrackCodingInterviews #AlgorithmPatterns #DSAIn90Days #PalindromeProblem #PairSum #ArrayProblems #LinkedListCycle #MiddleNode #ProgrammingConcepts #DataStructuresAndAlgorithms #TechInterviewTips #CodeBetter #OptimizeYourCode #Day1Done #CodeEveryday #EngineerLife #ProblemSolvingSkills #CodingCommunity #ZeroToHeroDSA Your Queries: two pointer pattern dsa patterns palindrome using two pointers pair sum problem fast and slow pointers coding interview preparation babua dsa course cto bhaiya crack faang interviews array problems linked list cycle detection middle node problem data structures and algorithms learn dsa fast optimize code in place o(n) solutions two pointer template day 1 dsa patterns coding for beginners faang interview prep dsa in 90 days CHAPTERS 00:00 Introduction 01:20 Two Pointer Pattern Intuition 03:29 Definition 08:26 Valid Palindrome - Brute Force Approach 14:16 Valid Palindrome - Optimised Approach 17:04 Why use two pointer 26:50 Templates 32:40 Next Two Videos 33:51 Course Onboarding 36:00 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 WhatsApp Community: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Elnhh8cC2vM https://www.techtube.co.in/tutorials/day-1990-interval-patterns-theory-dsa-pattern-4-dsa-pattern-you-must-know-twopointers 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/rpzaI1EPYSI/maxresdefault.jpg Day 19/90 |⚡ Interval Patterns Theory - DSA Pattern #4 | DSA Pattern You Must Know! #twopointers Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/19_Day Welcome to this deep-dive video on the Intervals Pattern — one of the most important and versatile problem-solving techniques used in coding interviews for FAANG, top startups, and product-based companies. In this video, we break down the entire Intervals Pattern using simple point-wise notes, clear diagrams, and practical examples, exactly the way interviewers expect you to think. You’ll learn: ✅ What the Intervals Pattern Is How real-world problems use ranges of time, numbers, or memory What an interval looks like: [start, end] How to understand overlaps, merges, intersections, and gaps ✅ When Do Two Intervals Overlap? The simple formula to detect overlap Visual diagrams to help you understand the relationship between ranges ✅ Why This Pattern Is Useful Merging redundant events Finding free slots Detecting schedule conflicts Measuring coverage or resource usage ✅ Different Types of Interval Relationships Non-overlapping intervals Overlapping intervals Contained intervals (one fully inside another) ✅ Why Sorting by Start Time Is the First Step How sorting creates a clean timeline Why merging and gap detection becomes easy after sorting ✅ Core Interval Problems Explained Merge Overlapping Intervals Meeting Rooms (Check Conflicts) Find Free Time (Gaps) Maximum Overlap / Minimum Rooms Needed Perfect for: Students preparing for placements FAANG aspirants Anyone building strong fundamentals in problem solving Beginners learning DSA the right way Hashtags: #IntervalPattern #MergeIntervals #MeetingRoomsProblem #IntervalsDSA #DSAPatterns #CodingInterviewPrep #FAANGPreparation #BabuaDSAPatterns #CTOBhaiya #DSAIn90Days #LearnDSA #DataStructuresAndAlgorithms #LeetCodePatterns #AlgorithmPatterns #SchedulingAlgorithms #CodingInterviews #CrackCodingInterviews #OptimizedSolutions #JavaCoding #PythonCoding #CPlusPlusCoding #JavaScriptDSA Your Queries: Interval Pattern Merge Intervals Meeting Rooms problem Interval scheduling Interval DSA Babua DSA Patterns CTO Bhaiya DSA in 90 Days Coding interview prep LeetCode intervals Find free time Maximum overlap intervals Sorting intervals Algorithm patterns FAANG preparation Data Structures and Algorithms Learn DSA fast Coding for beginners Timeline problems DSA Scheduling algorithms CHAPTERS 00:00 Introduction 03:43 Formal Definition 09:23 When do two intervals overlap 13:36 De Morgan's Law 19:20 Types of Interval Relationships 25:52 First step in interval problems 30:25 Problem 1 - Merge Overlapping Intervals 40:00 Problem 2 - Meeting Rooms - Check for conflicts 44:14 Problem 3 - Find free time gaps (in non overlapping intervals) 46:52 Problems matching this pattern 48:15 Intuition Behind sorting by start time 55:25 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/rpzaI1EPYSI https://www.techtube.co.in/tutorials/day-2090-interval-patterns-theory-2-dsa-pattern-4-dsa-pattern-you-must-know-twopointers 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/V1CWx1lUhUw/maxresdefault.jpg Day 20/90 |⚡ Interval Patterns Theory - 2 - DSA Pattern #4 | DSA Pattern You Must Know! #twopointers Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/20_Day In today’s lecture, we go back to absolute fundamentals and learn how to merge intervals using the pure brute-force approach — the method most beginners intuitively think of before learning the optimal solution. This video will help you understand: ✅ What does it mean for two intervals to overlap? Simple math conditions + real-life examples. ✅ How does the brute-force merging algorithm work? Pairwise comparisons, repeated merging, shrinking lists — the raw, original idea. ✅ Step-by-step dry run We take intervals like [1,3], [2,6], [8,10], [15,18] and visually show how merging happens repeatedly. ✅ Why brute force becomes O(n³)? Deep dive into: • Pairwise interval scans → O(n²) • Removal cost in ArrayList → O(n) • Multiple rounds of merging → O(n) Perfect explanation for understanding why brute force is slow and why the optimized sort-based approach works better. ✅ Brute force vs. Optimal (O(n log n)) Clear comparison so you never forget the difference in interviews. ⸻ 🎥 Who should watch this video? • Students following the Babua DSA Patterns Course (90 Days) • Anyone preparing for FAANG / top tech interviews • Beginners who want intuition before learning the optimal method • Those who struggle with interval-based questions (meetings, scheduling, ranges) ⸻ 🧠 What you will gain after watching By the end of this lecture, you will confidently understand: ✔ How intervals behave ✔ How overlapping logic works ✔ How repeated merging builds the final answer ✔ Why brute force is simple but inefficient ✔ Strong intuition to transition to the optimal pattern ⸻ 🚀 Continue your 90-Day Journey This is Day 20/90. Keep going, Babua! Every lecture compounds. Every revision builds mastery. DSA is not difficult — it just needs pattern thinking. Hashtags: #IntervalsPattern #MergeIntervals #BruteForceDSA #BabuaDSAPatterns #DSA90DaysCourse #CTOBhaiyaDSA #DSATutorial #CodingInterviewPrep #FAANGInterviewPrep #DataStructuresAndAlgorithms #JavaDSA #CodingForBeginners #CompetitiveProgramming #AlgorithmExplanation #IntervalsDSA #RangeMerging #DSAForPlacements #CodingInterviewQuestions #LearnDSA #ProblemSolvingSkills Your Queries: Interval Pattern Merge Intervals Meeting Rooms problem Interval scheduling Interval DSA Babua DSA Patterns CTO Bhaiya DSA in 90 Days Coding interview prep LeetCode intervals Find free time Maximum overlap intervals Sorting intervals Algorithm patterns FAANG preparation Data Structures and Algorithms Learn DSA fast Coding for beginners Timeline problems DSA Scheduling algorithms CHAPTERS 00:00 - Introduction & Recap 01:48 - Brute Force Approach 03:39 - Dry Run / Walkthrough 07:32 - Finding the Issue 08:00 - Refining the Algorithm 12:40 - Algorithm Summary 14:29 - Coding Starts 16:18 - Implementing Pairwise Logic 26:55 - Overlap Function 28:10 - Debugging & Fixes 34:50 - Time & Space Complexity #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/V1CWx1lUhUw https://www.techtube.co.in/tutorials/day-2190-merge-intervals-56-dsa-pattern-you-must-know-twopointers 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/qY0qii68LAU/maxresdefault.jpg Day 21/90 |⚡ Merge Intervals #56 | DSA Pattern You Must Know! #twopointers Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/21_Day In today’s lecture, we go back to absolute fundamentals and learn how to merge intervals using the pure brute-force approach — the method most beginners intuitively think of before learning the optimal solution. This video will help you understand: ✅ What does it mean for two intervals to overlap? Simple math conditions + real-life examples. ✅ How does the brute-force merging algorithm work? Pairwise comparisons, repeated merging, shrinking lists — the raw, original idea. ✅ Step-by-step dry run We take intervals like [1,3], [2,6], [8,10], [15,18] and visually show how merging happens repeatedly. ✅ Why brute force becomes O(n³)? Deep dive into: • Pairwise interval scans → O(n²) • Removal cost in ArrayList → O(n) • Multiple rounds of merging → O(n) Perfect explanation for understanding why brute force is slow and why the optimized sort-based approach works better. ✅ Brute force vs. Optimal (O(n log n)) Clear comparison so you never forget the difference in interviews. ⸻ 🎥 Who should watch this video? • Students following the Babua DSA Patterns Course (90 Days) • Anyone preparing for FAANG / top tech interviews • Beginners who want intuition before learning the optimal method • Those who struggle with interval-based questions (meetings, scheduling, ranges) ⸻ 🧠 What you will gain after watching By the end of this lecture, you will confidently understand: ✔ How intervals behave ✔ How overlapping logic works ✔ How repeated merging builds the final answer ✔ Why brute force is simple but inefficient ✔ Strong intuition to transition to the optimal pattern ⸻ 🚀 Continue your 90-Day Journey This is Day 20/90. Keep going, Babua! Every lecture compounds. Every revision builds mastery. DSA is not difficult — it just needs pattern thinking. Hashtags: #IntervalsPattern #MergeIntervals #BruteForceDSA #BabuaDSAPatterns #DSA90DaysCourse #CTOBhaiyaDSA #DSATutorial #CodingInterviewPrep #FAANGInterviewPrep #DataStructuresAndAlgorithms #JavaDSA #CodingForBeginners #CompetitiveProgramming #AlgorithmExplanation #IntervalsDSA #RangeMerging #DSAForPlacements #CodingInterviewQuestions #LearnDSA #ProblemSolvingSkills Your Queries: Interval Pattern Merge Intervals Meeting Rooms problem Interval scheduling Interval DSA Babua DSA Patterns CTO Bhaiya DSA in 90 Days Coding interview prep LeetCode intervals Find free time Maximum overlap intervals Sorting intervals Algorithm patterns FAANG preparation Data Structures and Algorithms Learn DSA fast Coding for beginners Timeline problems DSA Scheduling algorithms CHAPTERS 00:00 - Introduction & Recap 01:48 - Brute Force Approach 03:39 - Dry Run / Walkthrough 07:32 - Finding the Issue 08:00 - Refining the Algorithm 12:40 - Algorithm Summary 14:29 - Coding Starts 16:18 - Implementing Pairwise Logic 26:55 - Overlap Function 28:10 - Debugging & Fixes 34:50 - Time & Space Complexity #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/qY0qii68LAU https://www.techtube.co.in/tutorials/day-2290-intervals-pattern-mastery-leetcode-986-3169-dsa-pattern-you-must-know 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/f70RgdbUdaE/maxresdefault.jpg 🔥 Day 22/90 | Intervals Pattern Mastery (LeetCode 986 & 3169) | DSA Pattern You Must Know! Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/22_Day 🔥 Day 22 / 90 — Intervals Pattern Mastery (LeetCode 986 & 3169) In Day 22 of the Babua DSA Patterns Course, we deep-dive into the Intervals Pattern by solving two important interview problems that test your ability to compare, intersect, and reason about ranges efficiently. 📌 Problems covered in this lecture: ✅ LeetCode 986 – Interval List Intersections Learn how to: Use two pointers to traverse two interval lists Detect overlaps using clean mathematical conditions Build intersections without extra space Reduce a brute-force O(N²) approach to O(N + M) ✅ LeetCode 3169 – Count Days Without Meetings Understand how to: Merge overlapping meeting intervals Identify gaps between intervals Translate real-world calendar logic into interval math Avoid off-by-one mistakes in range problems 🧠 What You’ll Learn in This Video When two intervals overlap (intuition + formula) Why only one pointer moves at a time How sorting simplifies interval problems Difference between merge vs intersection Common interview traps in interval questions 🎯 Why This Lesson Matters Intervals are guaranteed interview favorites: Calendar scheduling Meeting rooms Time ranges Availability checks System design edge cases Once you master this pattern, multiple problems collapse into the same logic. 📘 Part of the 90 Days Babua DSA Patterns Course This course focuses on: Pattern-based thinking (not rote memorization) Interview-ready logic Clean code + intuition FAANG-level problem solving 👉 Watch till the end to lock the Intervals Pattern for life. 🚀 Next Up More interval + two-pointer hybrid problems as we push closer to advanced interview patterns. 📌 Like • Comment • Share 📌 Subscribe for daily DSA consistency Hashtags: #BabuaDSAPatterns #Day22DSA #IntervalsPattern #LeetCode986 #LeetCode3169 #IntervalListIntersections #CountDaysWithoutMeetings #TwoPointers #DSAPatterns #LeetCodeDaily #CodingInterviews #FAANGPreparation #DSAForPlacements #CTOBhaiya #InterviewReady #ProblemSolving #DataStructuresAndAlgorithms #CodingPractice #SoftwareEngineering #CompetitiveProgramming Your Queries: babua dsa patterns day 22 dsa intervals pattern leetcode 986 interval list intersections leetcode 3169 count days without meetings interval problems leetcode two pointers intervals merge intervals interval intersection dsa interview prep faang dsa coding interview questions dsa for placements cto bhaiya dsa leetcode intervals explained pattern based dsa 90 days dsa course CHAPTERS 00:00 - Introduction & Recap 01:15 - LeetCode 986 - Theory 21:30 - LeetCode 986 - Code 32:42 - LeetCode 3169 - Theory 43:26 - LeetCode 3169 - Code 55:05 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/f70RgdbUdaE https://www.techtube.co.in/tutorials/day-2390-intervals-pattern-mastery-leetcode-57-3169-dsa-pattern-you-must-know 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/UfnfgOdMvac/maxresdefault.jpg 🔥 Day 23/90 | Intervals Pattern Mastery (LeetCode 57 & 3169) | DSA Pattern You Must Know! Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/23_Day 📌 LeetCode 57 & 3169 Explained | Intervals Pattern (Step-by-Step) In this video, we solve two important Intervals Pattern problems from LeetCode: 🔹 LeetCode 57 – Insert Interval 🔹 LeetCode 3169 – Count Days Without Meetings Both problems look different on the surface, but internally they test the same core skill: 👉 how to reason about overlapping intervals, gaps, and merging logic. 🧠 What you’ll learn in this video: ✔ How to insert an interval into a sorted list ✔ How to detect overlap using simple conditions ✔ How to merge intervals on the fly ✔ How to calculate free gaps between intervals ✔ Why thinking in interval phases makes problems easy ✔ Common mistakes students make in interval questions ✍️ Topics Covered: • Intervals pattern fundamentals • Overlap conditions explained visually • Step-by-step dry run for both problems • Clean, interview-ready logic • Time & space complexity analysis 🚀 Who should watch this? ✔ Beginners learning DSA patterns ✔ Students preparing for FAANG / Product-based interviews ✔ Anyone who struggles with interval merging & gap problems 🔥 Pro Tip: If you master the Intervals Pattern, problems like meeting rooms, calendars, scheduling, timelines, and ranges become very predictable in interviews. 📘 Part of Babua DSA Patterns – 90 Days Placement Course 📌 Day 23 – Intervals Pattern If this video helped you: 👍 Like 📌 Subscribe 💬 Comment “BABUA” if you’re following the course consistently Hashtags: #LeetCode57 #LeetCode3169 #IntervalsPattern #InsertInterval #CountDaysWithoutMeetings #IntervalProblems #DSAPatterns #BabuaDSAPatterns #CTOBhaiya #LeetCodeIntervals #DSAForPlacements #CodingInterviewPrep #FAANGPreparation #DataStructuresAndAlgorithms #LeetCodeSolutions #DSAForBeginners #InterviewCoding #ProblemSolvingSkills #CompetitiveProgramming #SoftwareEngineeringInterviews Your Queries: leetcode 57 insert interval leetcode leetcode 3169 count days without meetings intervals pattern leetcode intervals interval merging problems dsa intervals pattern babua dsa patterns cto bhaiya dsa leetcode interval problems coding interview intervals faang dsa preparation interval overlap problems interview dsa questions leetcode solutions in java leetcode solutions in python dsa for placements 90 days dsa course CHAPTERS 00:00 - Introduction & Recap 01:00 - LeetCode 3169 - Approach 1 - Theory 06:28 - LeetCode 3169 - Approach 1 - Code 09:39 - LeetCode 3169 - Approach 2 - Theory 21:32 - LeetCode 3169 - Approach 2 - Code 29:20 - LeetCode 57 - Theory 51:33 - LeetCode 57 - Code 01:03:15 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/UfnfgOdMvac https://www.techtube.co.in/tutorials/day-2490-intervals-pattern-mastery-leetcode-1288-dsa-pattern-you-must-know 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Q8b773muUQY/maxresdefault.jpg 🔥 Day 24/90 | Intervals Pattern Mastery (LeetCode 1288) | DSA Pattern You Must Know! Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/23_Day 🔥 LeetCode 1288 – Remove Covered Intervals | Day 24/90 | Babua DSA Patterns Course In this video, we solve LeetCode 1288: Remove Covered Intervals, an important Intervals Pattern problem frequently asked in coding interviews. You’ll learn how to: Identify when one interval is fully covered by another Apply sorting + greedy thinking to simplify interval problems Avoid common mistakes while handling overlapping ranges Write a clean, interview-ready solution with optimal time complexity 📌 This problem builds directly on concepts like: Interval sorting strategies Comparing ranges efficiently Greedy decisions in interval-based problems 💡 By the end of this lecture, you’ll clearly understand why sorting by start (and reverse end) works and how to confidently handle similar interval questions in FAANG interviews. 🧠 What You’ll Learn ✔️ Interval comparison logic ✔️ Covered vs overlapping intervals ✔️ Greedy approach explained step-by-step ✔️ Time & space complexity analysis 📚 Course Context This video is part of the Babua DSA Patterns – 90 Days Interview Preparation Course, where we master DSA patterns instead of memorizing problems, ensuring long-term retention and interview success. 🚀 Who Should Watch? DSA beginners learning interval problems Intermediate learners preparing for placements FAANG interview aspirants Anyone following the Babua DSA Patterns roadmap 👉 Like, share & subscribe to support the Babua community 👉 Drop your doubts in the comments — I personally reply 💙 👉 Follow along daily for Day 25/90 coming next! Hashtags: #LeetCode1288 #RemoveCoveredIntervals #IntervalsPattern #DSAPatterns #BabuaDSAPatterns #Day24of90 #DSA90Days #CodingInterview #FAANGPreparation #GreedyAlgorithm #IntervalProblems #LeetCodeIntervals #DSAForPlacements #InterviewPreparation #CompetitiveProgramming #DataStructuresAndAlgorithms #CodingForBeginners #CTOBhaiya #PlacementPreparation #ProblemSolving Your Queries: leetcode 1288 remove covered intervals intervals pattern leetcode intervals problems greedy interval problems dsa patterns course babua dsa patterns day 24 dsa dsa 90 days course coding interview preparation faang interview questions interval overlap problems greedy algorithm dsa leetcode medium intervals data structures and algorithms dsa for placements cto bhaiya dsa competitive programming intervals CHAPTERS 00:00 - Introduction & Recap 00:35 - LeetCode 1288 - Approach 1 - Theory 07:18 - LeetCode 1288 - Approach 1 - Code 14:47 - LeetCode 1288 - Approach 2 - Theory 25:17 - LeetCode 1288 - Approach 2 - Code 30:00 - When start time is same BUG 39:30 - Bug Fix 43:10 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Q8b773muUQY https://www.techtube.co.in/tutorials/day-2590-line-sweep-algorithm-treemap-theory-lab-made-easy-dsa-pattern-you-must-know 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/EPBYfs8J5tI/maxresdefault.jpg 🔥 Day 25/90 | Line Sweep Algorithm + TreeMap Theory + Lab Made Easy| DSA Pattern You Must Know! Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/25_Day In this video, we deep dive into the My Calendar II problem and break it down step by step, starting from the brute force approach and gradually moving to optimized solutions using TreeMap and the Line Sweep Algorithm. 📌 What you’ll learn in this video: How the brute force approach works and why it fails for large inputs Using TreeMap to efficiently track overlapping bookings Understanding the Line Sweep Algorithm with intuition, diagrams, and real examples A simple sample problem to clearly understand how line sweep works before applying it to My Calendar II How to prevent triple bookings while allowing double bookings Time and space complexity analysis of each approach 🧠 Why this problem is important: Frequently asked in FAANG interviews Tests understanding of intervals, event counting, and ordered maps Helps you master a powerful pattern used in calendar scheduling, meeting rooms, and interval problems 🎯 Who should watch this video? Students preparing for coding interviews Anyone learning TreeMap internals Developers wanting to understand line sweep algorithms from scratch DSA learners following the Babua DSA Patterns Course 🔥 By the end of this video, you’ll have a clear mental model of how the Line Sweep Algorithm works and how to apply it confidently in interview problems. 👉 Don’t forget to like, comment, and subscribe for more structured DSA explanations in Babua style 🚀 Hashtags: #MyCalendarII #LineSweepAlgorithm #TreeMap #Intervals #CalendarScheduling #EventCounting #BruteForceToOptimized #DSAPatterns #BabuaDSAPatterns #CTOBhaiya #LeetCode #LeetCodeHard #CodingInterview #FAANGPrep #InterviewPreparation #DataStructures #Algorithms #JavaDSA #OrderedMap #IntervalProblems #SystemDesignBasics #CompetitiveProgramming #DSAForPlacements #DSAExplained Your Queries: my calendar ii line sweep algorithm treemap dsa treemap java interval problems calendar scheduling problem leetcode my calendar ii leetcode intervals line sweep algorithm explained brute force to optimized dsa event counting algorithm interval overlap problems treemap internals java treemap example dsa interview questions faang interview prep babua dsa patterns cto bhaiya dsa dsa for placements coding interview preparation CHAPTERS 00:00 - Introduction 03:18 - LeetCode 731 - Approach 1 - Theory 22:30 - LeetCode 731 - Approach 1 - Code 43:00 - Line Sweep Algorithm Intuition 55:00 - TreeMap Theory 01:10:32 - TreeMap Lab 01:27:00 - TreeMap in Line Sweep Algorithm 01:32:00 - Line Sweep Algorithm Steps 01:35:13 - Line Sweep Algorithm Walkthrough 01:40:10 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/EPBYfs8J5tI https://www.techtube.co.in/tutorials/day-2690-my-calendar-ii-explained-line-sweep-algorithm-leetcode-hard-dsa-patterns 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/xh57S8W6-tc/maxresdefault.jpg 🔥 Day 26/90 | 📅 My Calendar II Explained | Line Sweep Algorithm | LeetCode Hard | DSA Patterns Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/26_Day 📅 My Calendar II Explained | Line Sweep Algorithm | LeetCode Hard | DSA Patterns In this video, we deep-dive into the My Calendar II problem and understand why the Line Sweep algorithm is the most elegant and scalable solution for handling overlapping intervals. Instead of brute force checks, we model bookings as event points and track how overlaps evolve over time — exactly how real calendar systems work under the hood. 🔍 What You’ll Learn in This Video ✅ Problem intuition behind My Calendar II ✅ Why simple overlap checking fails at scale ✅ Core idea of the Line Sweep algorithm ✅ How to convert intervals into +1 / −1 events ✅ Using ordered maps (TreeMap) to track active bookings ✅ How to detect triple booking violations efficiently ✅ Time & space complexity breakdown ✅ Interview tips to explain this approach confidently 🧠 Line Sweep Intuition (Quick Preview) Instead of thinking in terms of intervals, we think in terms of timeline events: Start of booking → +1 End of booking → -1 Sweep from left to right If active bookings ever exceed 2 → reject the booking This pattern appears frequently in calendar systems, scheduling engines, and interval aggregation problems. 🧩 Why This Problem Is Important Asked in top-tier interviews Tests event-based thinking, not brute force Builds foundation for advanced interval problems Core concept used in real-world scheduling systems 🚀 Who Should Watch? DSA learners targeting FAANG / Product companies Students struggling with interval problems Anyone who wants to think like a system designer 🔔 Part of Babua DSA Patterns Course 📌 Day 26 / 90 📌 Intervals + Line Sweep Pattern If this video helps you, like, share, and comment “LINE SWEEP” to support the series ❤️ Subscribe for clean, interview-ready DSA explanations. Hashtags: #MyCalendarII #LineSweepAlgorithm #LeetCodeHard #IntervalProblems #DSAPatterns #CalendarProblems #TreeMap #EventBasedAlgorithm #SweepLineTechnique #CodingInterviews #FAANGPreparation #DSAForPlacements #CompetitiveProgramming #SystemDesignBasics #AlgorithmsExplained #DataStructures #CTOBhaiya #BabuaDSA #LeetCodeSolutions #InterviewPreparation #SoftwareEngineering #ProblemSolving Your Queries: my calendar ii line sweep algorithm leetcode my calendar ii my calendar ii explanation my calendar ii line sweep interval problems calendar booking problem sweep line technique event based algorithm treemap intervals ordered map algorithm leetcode hard intervals dsa patterns interval scheduling coding interview problems faang interview prep leetcode solutions babua dsa patterns cto bhaiya data structures and algorithm CHAPTERS 00:00 - Introduction & Recap 01:10 - Day 25 Recap 06:37 - LeetCode 731 - Optimised Theory 18:10 - LeetCode 731 - Optimised Code 27:00 - Optimising by Clean Up 36:50 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/xh57S8W6-tc https://www.techtube.co.in/tutorials/day-2790-2-popular-interview-questions-intervals-pattern-mastery-dsa-pattern-you-must-know 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/gODaq3rrQ0E/maxresdefault.jpg 🔥 Day 27/90 | 2 Popular Interview Questions | Intervals Pattern Mastery | DSA Pattern You Must Know! Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/27_Day In this video, we deeply explain two classic interval scheduling problems from LeetCode that are frequently asked in interviews: ✅ Problems Covered: 1️⃣ Meeting Rooms (LeetCode 252) 2️⃣ My Calendar I (LeetCode 729) Both problems are based on the Intervals Pattern and help you build strong intuition around: Overlapping intervals Conflict detection Efficient scheduling Real-world calendar systems 🔍 What You’ll Learn in This Video ✔️ How to check overlap between two intervals ✔️ Why sorting intervals by start or end time matters ✔️ How Meeting Rooms reduces to a simple overlap check ✔️ How My Calendar I simulates a real calendar booking system ✔️ Brute Force vs Optimized thinking ✔️ How interviewers expect you to approach these problems ✔️ Common mistakes students make with interval logic 🧠 Core Concepts Explained Intervals Pattern Overlap condition Conflict detection logic Time complexity analysis Interview-ready mental model 🧪 Approach Summary 📍 Meeting Rooms Sort intervals Check if any meeting starts before the previous one ends If yes → conflict exists 📍 My Calendar I Maintain a list of booked events For every new booking, check overlap with existing events Book only if no conflict 🎯 Who Should Watch This Video? ✔️ DSA beginners ✔️ Placement aspirants ✔️ FAANG interview prep ✔️ Anyone struggling with interval problems ✔️ Students following Babua DSA Patterns Course 🚀 Why This Video Matters Intervals are one of the most repeated patterns in coding interviews. Once you master these two problems, My Calendar II & III become much easier. 👉 Think in patterns, not problems. 📚 Related Topics Merge Intervals Interval Intersection Meeting Rooms II My Calendar II & III Line Sweep Algorithm 💙 If this video helps you, don’t forget to: Like 👍 Subscribe 🔔 Share with your friends preparing for interviews Happy Coding! 🚀 Hashtags: #MeetingRooms #MyCalendar1 #LeetCode252 #LeetCode729 #IntervalsPattern #IntervalScheduling #CalendarScheduling #DSAPatterns #BabuaDSAPatterns #CTOBhaiya #LeetCodeIntervals #CodingInterview #FAANGPreparation #DSAForPlacements #InterviewPreparation #DataStructures #Algorithms #CompetitiveProgramming #SoftwareEngineering #systemdesignbasics Your Queries: meeting rooms leetcode my calendar 1 leetcode leetcode intervals interval scheduling problems meeting room problem explanation my calendar problem explanation intervals pattern dsa leetcode 252 solution leetcode 729 solution calendar booking system overlapping intervals coding interview preparation faang interview questions dsa for placements babua dsa patterns cto bhaiya dsa interval overlap logic data structures and algorithms CHAPTERS 00:00 - Introduction & Recap 01:07 - Meeting Rooms - Approach 1 - Theory 08:01 - Meeting Rooms - Approach 1 - Code 12:09 - Meeting Rooms - Approach 2 - Theory 18:11 - Meeting Rooms - Approach 2 - Code 23:06 - 729. My Calendar I - Approach 1 - Theory 30:00 - 729. My Calendar I - Approach 1 - Code 36:20 - 729. My Calendar I - Approach 2 - Theory 43:27 - 729. My Calendar I - Approach 2 - Code 52:50 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/gODaq3rrQ0E https://www.techtube.co.in/tutorials/day-2890-1094-car-pooling-sorting-playlist-hw-intervals-pattern-mastery-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/1ic73n25nMg/maxresdefault.jpg 🔥 Day 28/90 | 1094. Car Pooling + Sorting Playlist HW | Intervals Pattern Mastery #dsa Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/28_Day 🚗 Car Pooling Problem Explained | Line Sweep Algorithm + Bucket Sort | Interview Pattern In this video, we deep-dive into the Car Pooling problem and solve it using two powerful techniques that frequently appear in FAANG interviews: ✅ Line Sweep Algorithm ✅ Bucket Sort / Difference Array Technique You’ll learn why greedy thinking alone is not enough, how to model trips as events, and how tracking passenger changes over distance/time makes the problem intuitive and efficient. 🔍 What You’ll Learn in This Video ✔️ Understand the Car Pooling problem statement clearly ✔️ Convert trips into pickup (+passengers) and drop (-passengers) events ✔️ Solve the problem using the Line Sweep Algorithm ✔️ Optimize further using Bucket Sort / Difference Array ✔️ Step-by-step dry run with examples ✔️ Time & space complexity analysis ✔️ Why this pattern works for calendar, intervals, and capacity problems 🧠 Key Insight (Interview Gold) Instead of tracking trips individually, we track net passenger changes at each location. If at any point the current passengers exceed capacity → return false. This same idea appears in: Calendar Booking problems Meeting Rooms Range increment queries Prefix sum + sweep line problems ⏱️ Complexity Line Sweep: O(N log N) Bucket Sort / Difference Array: O(N + maxDistance) Space: O(maxDistance) or O(N) 🎯 Who Should Watch This? 👨‍🎓 DSA beginners learning interval & sweep line patterns 👨‍💻 FAANG / Product-based company aspirants 📚 Students following Babua DSA Patterns Course 🚀 Anyone who wants to think in patterns, not problems 📌 Pattern to Remember: Whenever capacity changes over a range → think Line Sweep or Difference Array. If you found this explanation helpful, like, share, and subscribe for more pattern-based DSA videos 💙 Hashtags: #CarPoolingProblem #LineSweepAlgorithm #BucketSort #DifferenceArray #PrefixSumTechnique #IntervalProblems #SweepLineAlgorithm #DSAPatterns #BabuaDSAPatterns #CTOBhaiya #LeetCodeCarPooling #GreedyAlgorithms #RangeQuery #AlgorithmExplanation #DSAForPlacements #FAANGInterviewPrep #CodingInterviewQuestions #DataStructuresAndAlgorithms #DSAForBeginners #CompetitiveProgramming #InterviewPreparation #LeetCodeSolutions #ProblemSolvingSkills #SystematicDSA #CodingPatterns Your Queries: car pooling problem line sweep algorithm bucket sort algorithm difference array technique prefix sum algorithm interval problems dsa sweep line dsa car pooling leetcode leetcode car pooling solution greedy algorithms dsa range increment problems calendar booking problems meeting rooms pattern dsa patterns course babua dsa patterns cto bhaiya dsa faang interview prep coding interview questions data structures algorithms dsa for placements CHAPTERS 00:00 - Introduction & Course Welcome 01:30 - Theory: 1094. Car Pooling 13:53 - Line Sweep Code: 1094. Car Pooling 22:10 - Bucket Sort Theory: 1094. Car Pooling 41:35 - Bucket Sort Code: 1094. Car Pooling 50:15 - Conclusion & Next Steps #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/1ic73n25nMg https://www.techtube.co.in/tutorials/day-290-master-5-two-pointer-problems-babua-dsa-patterns-crack-coding-interviews-twopointers 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Yi90cuHYyWQ/maxresdefault.jpg Day 2/90 |⚡Master 5 Two Pointer Problems | Babua DSA Patterns | Crack Coding Interviews #twopointers Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/2_Day/End_Day_2.pdf Problems URLs: 125. Valid Palindrome: https://leetcode.com/problems/valid-palindrome/ 344. Reverse String: https://leetcode.com/problems/reverse-string/ 977. Squares of a Sorted Array: https://leetcode.com/problems/squares-of-a-sorted-array/ 680. Valid Palindrome II: https://leetcode.com/problems/valid-palindrome-ii/description/ Valid Word Abbreviation : https://neetcode.io/problems/valid-word-abbreviation?list=neetcode250 Welcome to Day 2 of the Babua DSA Patterns Course 2025! 🎯 In this session, we dive deep into the Two Pointer Pattern — one of the most powerful techniques used to solve array, string, and linked list problems efficiently. By the end of this video, you’ll not only understand the logic but also learn how to identify when to use the Two Pointer approach and implement it with confidence in real interviews. ⸻ 🚀 Topics Covered We’ll solve 5 must-know LeetCode problems using the Two Pointer technique: 1. 125. Valid Palindrome — Clean and compare characters efficiently. 2. 344. Reverse String — Swap elements in-place with minimal space. 3. 977. Squares of a Sorted Array — Merge two sorted halves using pointers. 4. 680. Valid Palindrome II — Skip one mismatch smartly and validate. 5. Valid Word Abbreviation — Decode patterns using pointer traversal. ⸻ 📘 Concepts You’ll Learn • When and why to use the Two Pointer technique • How to reduce O(n²) brute-force to O(n) linear time • Key templates for left–right and fast–slow pointer strategies • Common pitfalls and debugging tricks for string and array problems ⸻ 🧩 Ideal For • Students preparing for FAANG interviews • Beginners mastering DSA problem patterns • Anyone following the Babua DSA Patterns 90-Day Challenge ⸻ Hashtags: #TwoPointerPattern #TwoPointers #BabuaDSAPatterns #BabuaDSACourse #DSAPatterns2025 #CTOBhaiya #CodingInterviewPrep #LeetCodeProblems #LeetCodeSolutions #ValidPalindrome #ReverseString #SquaresOfASortedArray #ValidPalindromeII #ValidWordAbbreviation #Striver #TakeUForward #ApnaCollege #LoveBabbar #NishantChahar #AnujKumar #DSAin90Days #CodingForPlacements #DataStructuresAndAlgorithms #FAANGPreparation #InterviewPreparation #AlgorithmPatterns #ProblemSolvingSkills #CompetitiveProgramming #LearnDSA #JavaCoding #PythonCoding #CPlusPlusCoding #CodingJourney #ProgrammersLife #BabuaDSA #CodingChallenge #LeetCodeDaily Your Queries: two pointer pattern two pointers babua dsa patterns babua dsa course dsa patterns 2025 cto bhaiya leetcode problems leetcode solutions valid palindrome reverse string squares of a sorted array valid palindrome II valid word abbreviation striver take u forward apna college love babbar nishant chahar anuj kumar dsa in 90 days faang interview prep coding interview patterns data structures and algorithms competitive programming CHAPTERS 00:00 Introduction 01:39 Two Pointer Pattern Recap 02:17 Problems List 03:18 125. Valid Palindrome - Theory 11:04 125. Valid Palindrome - Code 17:54 344. Reverse String - Theory 19:43 344. Reverse String - Code 24:36 977. Squares of a Sorted Array - Theory 28:15 977. Squares of a Sorted Array - Code 34:33 680. Valid Palindrome II - Theory 38:10 680. Valid Palindrome II - Code 47:01 Valid Word Abbreviation - Theory 54:50 Valid Word Abbreviation - Code 01:07:10 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 WhatsApp Community: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Yi90cuHYyWQ https://www.techtube.co.in/tutorials/day-2990-2-popular-interview-questions-intervals-pattern-mastery-dsa-pattern-you-must-know 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/CvPHNlhm7tU/maxresdefault.jpg 🔥 Day 29/90 | 2 Popular Interview Questions | Intervals Pattern Mastery | DSA Pattern You Must Know! Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/29_Day In this video, we deep dive into two classic interval problems — Meeting Rooms II and My Calendar III — and solve them using the powerful Line Sweep Algorithm. These problems look different on the surface, but both are fundamentally about handling overlapping intervals efficiently. Instead of brute force or nested loops, we use the line sweep technique to track how overlaps change over time and compute the maximum number of concurrent meetings/bookings. 🔍 What you’ll learn in this video: Why brute force and sorting-only approaches fail at scale The intuition behind the Line Sweep Algorithm How to convert intervals into events (+1 / -1) How prefix sums help track active meetings Step-by-step dry run for both problems How Meeting Rooms II and My Calendar III are conceptually the same Time and space complexity analysis Interview tips and common pitfalls 📌 Problems covered: Meeting Rooms II (LeetCode) My Calendar III (LeetCode) This approach is highly interview-relevant and commonly asked in FAANG and product-based companies. If you understand this pattern, you’ll be able to solve many advanced interval and scheduling problems with confidence. 👉 Part of Babua DSA Patterns Course 👉 Pattern covered: Intervals + Line Sweep If this helped you, don’t forget to like, share, and subscribe for more pattern-based DSA explanations 🚀 Hashtags: #MeetingRoomsII #MyCalendarIII #LineSweepAlgorithm #IntervalProblems #DSAPatterns #BabuaDSAPatterns #DSA90Days #LeetCodeIntervals #LeetCodeSolutions #CodingInterviews #FAANGPreparation #SoftwareEngineering #CompetitiveProgramming #AlgorithmExplanation #DataStructuresAndAlgorithms #InterviewPreparation #SystematicDSA #CTOBhaiya #DSAForPlacements #AdvancedDSA Your Queries: meeting rooms ii my calendar iii line sweep algorithm sweep line algorithm interval problems leetcode meeting rooms ii leetcode my calendar iii line sweep technique interval scheduling leetcode intervals dsa intervals dsa patterns babua dsa patterns dsa 90 days coding interview questions faang interview prep algorithm explanation prefix sum intervals competitive programming cto bhaiya dsa CHAPTERS 00:00 - Introduction & Recap 01:07 - 732. My Calendar III - Theory 14:15 - 732. My Calendar III - Code 24:46 - Meeting Rooms II - Theory 31:54 - Meeting Rooms II - Code 38:20 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/CvPHNlhm7tU https://www.techtube.co.in/tutorials/day-3090-leetcode-352-data-stream-as-disjoint-intervals-hard-dsain90days 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/e_0wYr-ZlJ4/maxresdefault.jpg 🔥 Day 30/90 | LeetCode 352. Data Stream as Disjoint Intervals (HARD) #dsain90days Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/30_Day Day 30/90 of the Babua DSA Patterns Course is all about solving LeetCode 352 – Data Stream as Disjoint Intervals, a classic interval maintenance problem asked frequently in interviews. In this video, we start with a brute force approach to build intuition—understanding how incoming numbers affect existing intervals and how merges happen step by step. Once the fundamentals are clear, we move to an optimized TreeSet-based solution, leveraging ordered data structures to efficiently maintain disjoint intervals in a streaming setup. You’ll learn: How to think about interval creation & merging in real-time data streams Why brute force works but fails at scale How TreeSet (Balanced BST) helps achieve optimal performance Time & space complexity trade-offs Interview-ready intuition for interval design problems This problem strengthens your understanding of the Intervals Pattern, ordered sets, and incremental data processing—skills that are crucial for both coding interviews and real-world system design. 🔗 Problem Link: https://leetcode.com/problems/data-stream-as-disjoint-intervals/ 📚 Course: Babua DSA Patterns 📅 Day: 30 / 90 🎯 Pattern Covered: Intervals + TreeSet / BST If you’re serious about mastering DSA pattern-by-pattern, this series is for you. Don’t forget to like, comment, and subscribe to keep learning with CTO Bhaiya 🚀 Hashtags: #LeetCode352 #DataStreamAsDisjointIntervals #IntervalsPattern #TreeSet #BruteForceApproach #DSAPatterns #BabuaDSAPatterns #Day30Of90 #CodingInterviewPreparation #FAANGPreparation #InterviewDSA #CompetitiveProgramming #JavaDSA #TreeSetJava #BalancedBST #OrderedSet #IntervalProblems #SystematicDSA #CTOBhaiya #CodingPatterns #ProblemSolvingSkills #DSAForPlacements #LeetCodeJava #DailyDSA Your Queries: leetcode 352 data stream as disjoint intervals intervals pattern treeset solution leetcode brute force intervals treeset java java dsa intervals babua dsa patterns day 30 of 90 dsa coding interview preparation faang dsa interval merge problems ordered set java balanced bst dsa leetcode java intervals daily dsa practice cto bhaiya interview dsa patterns CHAPTERS 00:00 - Introduction & Recap 01:14 - LeetCode 352 - Approach 1 - Theory 22:36 - LeetCode 352 - Approach 1 - Code 37:46 - LeetCode 352 - Approach 2 - Theory 43:18 - LeetCode 352 - Approach 2 - Code 48:40 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/e_0wYr-ZlJ4 https://www.techtube.co.in/tutorials/day-3190-in-place-linked-list-manipulation-patterns-theory-dsa-pattern-5-linkedlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/LZepIwk4YLk/maxresdefault.jpg Day 31/90 |⚡ In-Place Linked List Manipulation Patterns Theory | DSA Pattern #5 #linkedlist Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/31_Day IWelcome to this video on In-Place Manipulation of a Linked List — one of the most important pointer-based patterns you must master to crack coding interviews at FAANG, top startups, and product-based companies. In this video, we focus purely on the theory, intuition, and mental model behind in-place linked list manipulation — so you don’t just memorize code, but actually understand why it works. 🔍 What You’ll Learn in This Video ✅ What “In-Place” Really Means What in-place modification is Why extra memory (O(n)) is often disallowed in interviews How linked lists allow efficient pointer manipulation ✅ Why Linked Lists Are Perfect for In-Place Operations Difference between modifying values vs modifying links Why pointer control is more important than node values ✅ Naive vs Optimized Approach Reversing a linked list using extra memory (O(n) space) Reversing the same list in place using only O(1) space ✅ The Core 3-Pointer Technique prev, curr, next explained step-by-step Why saving next is critical to avoid losing the list How link reversal actually works behind the scenes ✅ Common Problems Based on This Pattern Reverse a linked list Reverse a sublist Reverse second half of a list Rotate a linked list Reorder a linked list ✅ How to Recognize This Pattern in Interviews Keywords that signal in-place manipulation How interviewers test pointer safety Common mistakes and how to avoid them 🧠 Why This Pattern Matters Converts O(n) space solutions into O(1) space Builds strong pointer intuition Forms the foundation for almost all advanced linked list problems Frequently asked in interviews (often as follow-ups) 👩‍💻 Languages Covered Java • C++ • Python • JavaScript 🎓 Perfect For Beginners struggling with linked lists Students preparing for placements FAANG aspirants Anyone who wants to think in pointers instead of memorizing code Hashtags: #InPlaceLinkedList #LinkedListDSA #LinkedListPatterns #DSAPatterns #CodingInterviewPrep #FAANGPreparation #BabuaDSAPatterns #CTOBhaiya #DSAIn90Days #LearnDSA #ReverseLinkedList #LinkedListTheory #PointerManipulation #DataStructuresAndAlgorithms #OptimizedSolutions #CrackCodingInterviews #CodingForBeginners #InterviewDSA #ZeroToHeroDSA #ProblemSolvingSkills Your Queries: In place linked list Linked list manipulation Reverse linked list Linked list patterns In place reversal linked list Linked list theory Pointer manipulation DSA linked list Babua DSA Patterns CTO Bhaiya DSA in 90 Days Coding interview prep FAANG preparation Linked list interview questions Learn DSA fast Data Structures and Algorithms O(1) space linked list Coding for beginners Crack coding interviews CHAPTERS 00:00 - Introduction & Recap 01:43 - What is In-Place Linked List Manipulation 05:09 - Why do we need this pattern 11:03 - Naive vs In-Place Approach 14:17 - Core technique: 3-Pointer Method 19:00 - Reverse Linked List using Brute Force Approach 28:27 - Reverse Linked List using 3 Pointer Method 36:33 - Problems matching this pattern 39:00 - Template 42:13 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/LZepIwk4YLk https://www.techtube.co.in/tutorials/day-3290-most-important-linked-list-concept-3-popular-leetcode-questions-dsa-pattern-5 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/DHFFCQiEAX8/maxresdefault.jpg Day 32/90 |⚡ Most Important Linked List Concept + 3 Popular LeetCode Questions | DSA Pattern #5 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/32_Day Linked Lists can feel tricky — until you understand one powerful idea: the Dummy Node. In this video, we break down the dummy node concept and show how it simplifies some of the most common and confusing linked list problems asked in coding interviews and placements. We cover step-by-step: ✅ What is a Dummy Node and why it is used ✅ Remove Duplicates from a Sorted Linked List ✅ Remove Elements from a Linked List ✅ Reverse a Linked List (iterative intuition) ✅ How dummy nodes help avoid edge-case bugs (especially head deletion) ✅ Clean pointer movement and in-place manipulation These problems form the foundation of linked list manipulation and are frequently asked in interviews at FAANG and product-based companies. This video is perfect if you: Struggle with linked list edge cases Get confused when deleting the head node Want clean, interview-ready logic Are following Babua DSA Patterns Course Are preparing for placements or coding interviews 👉 Key Insight: Dummy nodes make your code simpler, safer, and more readable. 📌 Problems discussed: Remove Duplicates from Sorted List Remove Linked List Elements Reverse Linked List If this video helps, don’t forget to: 👍 Like the video 💬 Comment your doubts 🔔 Subscribe for daily DSA + pattern-based learning Hashtags: #LinkedList #DummyNode #DSA #CodingInterviews #LinkedListProblems #RemoveDuplicates #ReverseLinkedList #RemoveLinkedListElements #InPlaceAlgorithm #DataStructures #InterviewPreparation #Placements #LeetCode #ProblemSolving #BabuaDSAPatterns #CTOBhaiya #SoftwareEngineering #CodingLife Your Queries: dummy node linked list linked list dummy node concept remove duplicates from sorted linked list remove linked list elements reverse linked list linked list interview problems linked list edge cases in place linked list manipulation coding interview linked list linked list dsa leetcode linked list problems placements linked list questions data structures and algorithms babua dsa patterns cto bhaiya software engineering interviews CHAPTERS 00:00 - Introduction & Recap 01:48 - LeetCode 206 - Theory 12:19 - LeetCode 206 - Code 18:14 - Dummy Node Concept 31:23 - LeetCode 203 - Theory 42:10 - LeetCode 203 - Code 46:47 - LeetCode 83 - Theory 52:59 - LeetCode 83 - Code 58:10 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/DHFFCQiEAX8 https://www.techtube.co.in/tutorials/day-3390-2-hard-in-place-linked-list-manipulation-questions-dsa-pattern-5 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/FmoPYYw3xhY/maxresdefault.jpg Day 33/90 |⚡ 2 HARD In-Place Linked List Manipulation Questions | DSA Pattern #5 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/33_Day Linked Lists become much easier once you master pointer manipulation and in-place reversal. In this video, we deep-dive into two classic and frequently asked Linked List problems from LeetCode: 📌 Problems Covered Reverse Linked List II (Reverse a sublist in one pass) Reorder List (L0 → Ln → L1 → Ln-1 …) These problems test your understanding of: Dummy nodes & boundary handling Partial list reversal Fast & slow pointer technique Splitting, reversing, and merging linked lists Writing clean, bug-free, in-place code (O(1) space) 🎯 What You’ll Learn How to reverse a linked list between two given positions Why dummy nodes simplify head-edge cases How to find the middle of a linked list How to reverse the second half efficiently How to merge two lists alternately Common mistakes students make in interviews — and how to avoid them 👨‍💻 Who Should Watch This? DSA & placement aspirants Students preparing for coding interviews Anyone struggling with linked list pointer logic Learners following pattern-based DSA preparation 👉 Key Insight: Both problems are not about memorizing code — they are about thinking in pointers and breaking the problem into clean steps. If this video helped you: 👍 Like the video 💬 Drop your doubts in the comments 🔔 Subscribe for more DSA patterns + interview intuition Hashtags: #ReverseLinkedList #ReorderList #LinkedList #DSA #LeetCode #LinkedListProblems #CodingInterviews #InPlaceAlgorithm #FastAndSlowPointer #InterviewPreparation #Placements #DataStructures #ProblemSolving #BabuaDSAPatterns #CTOBhaiya #SoftwareEngineering #CodingLife Your Queries: reverse linked list ii reorder list leetcode linked list reversal problems in place linked list manipulation reverse sublist linked list reorder linked list interview fast slow pointer linked list linked list interview problems linked list dsa leetcode linked list questions placements linked list data structures and algorithms coding interview preparation babua dsa patterns cto bhaiya software engineering interviews CHAPTERS 00:00 - Introduction & Recap 01:00 - LeetCode 92 - Theory 21:25 - LeetCode 92 - Code 31:48 - LeetCode 143 - Theory 52:41 - LeetCode 143 - Code 01:03:10 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/FmoPYYw3xhY https://www.techtube.co.in/tutorials/day-3490-2-medium-in-place-linked-list-manipulation-questions-dsa-pattern-5 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/A4Ooc-siJsw/maxresdefault.jpg Day 34/90 |⚡2 MEDIUM In-Place Linked List Manipulation Questions | DSA Pattern #5 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/34_Day 🎯 Odd–Even Nodes & Swapping Nodes in a Linked List | Interview-Ready Linked List Patterns In this video, we dive deep into two classic linked list problems that frequently appear in coding interviews and online assessments: 1️⃣ Odd–Even Linked List 2️⃣ Swapping Nodes in a Linked List Both problems test your understanding of pointer manipulation, in-place operations, and traversal logic—skills that are absolutely critical for cracking FAANG and product-based company interviews. 🔹 What You’ll Learn in This Video ✅ Odd–Even Nodes in a Linked List What “odd” and “even” actually mean (⚠️ position, not value) How to group odd-indexed nodes first, followed by even-indexed nodes Step-by-step pointer movement In-place solution with O(n) time and O(1) space Common mistakes students make ✅ Swapping Nodes in a Linked List Difference between swapping values vs pointers How to swap adjacent nodes safely Handling edge cases: Head node swaps Odd number of nodes Single-node and empty lists Dry-run walkthrough with diagrams 🧠 Why These Problems Matter Appear frequently in Linked List pattern rounds Build intuition for in-place linked list manipulation Foundation for advanced problems like: Reverse Nodes in K-Group Reorder List Partition List 💡 Interview Takeaways ✔️ Pointer discipline ✔️ Clean traversal logic ✔️ Edge-case handling ✔️ Memory-efficient solutions 📌 Perfect for: DSA beginners Interview preparation FAANG / Product company aspirants Babua DSA Patterns Course students If you found this helpful, like the video, subscribe to the channel, and share it with your DSA buddy 🚀 Drop your doubts or dry-run questions in the comments—I’ll reply! Happy coding 💻✨ Hashtags: #LinkedList #LinkedListDSA #OddEvenLinkedList #SwapNodesLinkedList #LinkedListProblems #LinkedListInterview #DSAPatterns #DataStructures #CodingInterview #FAANGPreparation #ProductBasedCompanies #DSAForBeginners #InPlaceAlgorithm #PointerManipulation #LeetCode #LeetCodeLinkedList #CodingTutorial #JavaDSA #PythonDSA #CplusplusDSA #InterviewPreparation #BabuaDSAPatterns #CTOBhaiya Your Queries: linked list odd even linked list swap nodes in linked list linked list dsa linked list interview questions pointer manipulation in place linked list dsa linked list problems faang linked list questions leetcode linked list odd even nodes linked list swap adjacent nodes linked list data structures and algorithms dsa for beginners java linked list dsa python linked list dsa c++ linked list dsa coding interview preparation babua dsa patterns cto bhaiya CHAPTERS 00:00 - Introduction & Recap 01:00 - LeetCode 1721 - Theory-1 05:20 - LeetCode 1721 - Code-1 10:41 - LeetCode 1721 - Theory-2 16:04 - LeetCode 1721 - Code-2 20:38 - LeetCode 328 - Theory 38:17 - LeetCode 328 - Code-2 44:15 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/A4Ooc-siJsw https://www.techtube.co.in/tutorials/day-3590-2-hard-in-place-linked-list-manipulation-questions-dsa-pattern-5 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ksgUrqUQSDk/maxresdefault.jpg Day 35/90 |⚡2 HARD In-Place Linked List Manipulation Questions | DSA Pattern #5 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/35_Day 🚀 Linked List Mastery | Split Linked List in Parts & Swap Nodes in Pairs (LeetCode Explained) In this video, we dive deep into two classic linked list problems from LeetCode that test your understanding of pointer manipulation and list traversal: 🔹 Split Linked List in Parts (LeetCode 725) 🔹 Swap Nodes in Pairs (LeetCode 24) These problems are frequently asked in coding interviews and are essential for mastering in-place linked list manipulation. 📌 What You’ll Learn ✅ How to split a linked list into k nearly equal parts ✅ Handling cases when the list size is smaller or larger than k ✅ Step-by-step logic to swap adjacent nodes without changing values ✅ Why dummy nodes simplify pointer handling ✅ Common edge cases interviewers love to test ✅ Time & space complexity analysis 🧠 Key Concepts Covered Linked List traversal Pointer reassignment Dummy node technique In-place manipulation Interview-ready problem solving 💻 Coding Languages Examples are explained in a language-agnostic way, making them easy to implement in: Java C++ Python JavaScript 🎯 Who Is This Video For? ✔️ Beginners learning linked lists ✔️ Intermediate programmers preparing for interviews ✔️ FAANG & product-based company aspirants ✔️ Babua DSA Patterns Course students 📺 Watch till the end to gain confidence in solving linked list problems without extra memory! If you find this helpful: 👍 Like the video 💬 Comment your doubts 🔔 Subscribe for daily DSA & System Design content Hashtags: #LinkedList #LeetCode #DSA #DataStructures #CodingInterview #InterviewPreparation #FAANG #ProductBasedCompanies #SoftwareEngineering #Programming #Java #Python #Cplusplus #JavaScript #CodingTutorial #DSAPatterns #LinkedListProblems #InPlaceAlgorithm #PointerManipulation #CTOBhaiya #BabuaDSAPatterns #LearnToCode #CompetitiveProgramming #TechCareers Your Queries: linked list split linked list in parts swap nodes in pairs leetcode linked list leetcode 24 leetcode 725 linked list problems linked list interview questions ds algo DSA patterns in place linked list pointer manipulation swap nodes linked list dummy node linked list coding interview preparation faang interview product based companies dsa for beginners java linked list python linked list cto bhaiya babua dsa patterns CHAPTERS 00:00 - Introduction & Recap 00:40 - LeetCode 725 - Theory 17:54 - LeetCode 1721 - Code 29:40 - LeetCode 24 - Theory 53:27 - LeetCode 24 - Code 58:23 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/ksgUrqUQSDk https://www.techtube.co.in/tutorials/day-3690-you-can-solve-this-hard-linked-list-problem-now-prove-it-dsa-pattern-5 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Ne16dr7_IYI/maxresdefault.jpg Day 36/90 |⚡You Can Solve This Hard Linked List Problem Now - PROVE IT | DSA Pattern #5 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/36_Day 🎯 Reverse Nodes in K-Group | Linked List Pattern Explained Step-by-Step In this video, we deep dive into the Reverse Nodes in K-Group problem — one of the most important and tricky Linked List problems frequently asked in FAANG and product-based company interviews. You’ll learn how to reverse a linked list k nodes at a time using in-place pointer manipulation, without using extra memory. 🔍 What you’ll learn in this video: How the Reverse in K-Group problem works Why a dummy node is crucial for clean edge-case handling Step-by-step dry run for reversing nodes in groups of size k How to reverse a sub-linked list in-place Handling cases where remaining nodes less than k Time and space complexity analysis Interview tips & common mistakes to avoid 🧠 Key Concepts Covered: In-Place Linked List Manipulation Pointer Rewiring Techniques Dummy Node Pattern Iterative Reversal Logic 🚀 Problem Link: Reverse Nodes in K-Group (LeetCode #25) 💻 Languages Covered: Java | C++ | Python | JavaScript 👨‍💻 Who should watch this? Students preparing for DSA & Coding Interviews Developers revising Linked List patterns Anyone following the Babua DSA Patterns Course (Day X/90) 📌 If this video helps you, don’t forget to: 👍 Like the video 💬 Drop your doubts in the comments 🔔 Subscribe to CTO Bhaiya for daily DSA & System Design content Happy Coding 🚀 Hashtags: #ReverseNodesInKGroup #LinkedList #LinkedListProblems #DSA #DataStructures #LeetCode25 #CodingInterviews #FAANGPreparation #InPlaceAlgorithm #DummyNode #PointerManipulation #DSAPatterns #BabuaDSAPatterns #CTOBhaiya #InterviewPreparation Your Queries: reverse nodes in k group reverse k group linked list leetcode 25 linked list reversal k group linked list linked list interview questions linked list dsa reverse linked list in k groups dummy node linked list in place linked list manipulation pointer manipulation linked list faang linked list problems dsa patterns cto bhaiya babua dsa patterns coding interview preparation CHAPTERS 00:00 - Introduction & Recap 01:01 - LeetCode 25 - Theory 21:55 - LeetCode 25 - Code 35:00 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Ne16dr7_IYI https://www.techtube.co.in/tutorials/day-3790-2-tricky-linked-list-interview-problems-explained-step-by-step-dsa-pattern-5 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/L5REVBcRtB8/maxresdefault.jpg Day 37/90 |⚡2 Tricky Linked List Interview Problems Explained Step-by-Step | DSA Pattern #5 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/37_Day 🚀 Master Advanced Linked List Manipulation – Two Interview-Favorite Problems Explained! In this video, we deep dive into two powerful linked list problems that frequently appear in coding interviews and competitive programming: 🔹 Delete M Nodes After Skipping N Nodes 🔹 Reverse Nodes in Even-Length Groups These problems test your understanding of pointer manipulation, group-based traversal, and in-place linked list updates — all without using extra memory. 🔹 Problem 1: Delete M Nodes After Skipping N Nodes You’ll learn how to: Traverse the linked list in controlled chunks Skip N nodes safely Delete the next M nodes in-place Handle edge cases like short lists and remaining nodes This problem strengthens your ability to modify linked lists selectively while maintaining correct connections. 🔹 Problem 2: Reverse Nodes in Even-Length Groups In this section, we cover: How to divide the linked list into increasing group sizes Detect whether a group length is even or odd Reverse only the even-sized groups Maintain list integrity using pointer rewiring This problem is a fantastic example of conditional in-place reversal and builds intuition for complex linked list patterns. 🧠 Key Concepts Covered In-place linked list manipulation Pointer safety & null checks Group-based traversal logic Edge case handling Interview-ready thinking 🎯 Who Should Watch This? ✔️ Students preparing for coding interviews ✔️ Anyone struggling with linked list pointer logic ✔️ Developers aiming to master DSA patterns ✔️ FAANG & product-based company aspirants 📌 By the end of this video, you’ll confidently solve group-based linked list problems without fear of pointer bugs. 👉 Watch till the end, code along, and level up your linked list skills! Happy Coding 🚀 Hashtags: #LinkedList #LinkedListProblems #DSA #DataStructures #CodingInterview #InterviewPreparation #DeleteMNodesAfterN #ReverseEvenGroups #LinkedListReversal #InPlaceAlgorithm #PointerManipulation #DSAPatterns #FAANGPreparation #LeetCode #LeetCodeLinkedList #CompetitiveProgramming #CodingTutorial #Programming #JavaDSA #PythonDSA #CPlusPlusDSA #ProblemSolving #AlgorithmExplanation #BabuaDSAPatterns #CTOBhaiya Your Queries: linked list linked list problems delete m nodes after n nodes reverse nodes in even groups linked list reversal linked list interview questions dsa patterns linked list in place manipulation pointer manipulation dsa interview preparation faang linked list questions leetcode linked list group based linked list problems advanced linked list problems coding interview questions data structures and algorithms java linked list python linked list c++ linked list cto bhaiya babua dsa patterns CHAPTERS 00:00 - Introduction & Recap 03:17 - Delete N Nodes after M Nodes of a linked list - Theory 15:49 - Delete N Nodes after M Nodes of a linked list - Code 22:49 - LeetCode 2074 - Theory 50:00 - LeetCode 2074 - Code 01:05:00 - LeetCode 2074 - Edge Case 01:12:14 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/L5REVBcRtB8 https://www.techtube.co.in/tutorials/day-3890-insert-into-a-sorted-circular-linked-list-step-by-step-explanation-dsa-pattern-5 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Znv_aEyKXM0/maxresdefault.jpg Day 38/90 |⚡Insert Into a Sorted Circular Linked List | Step-by-Step Explanation | DSA Pattern #5 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/38_Day 📌 Insert into a Sorted Circular Linked List — Explained Step by Step In this video, we deep-dive into one of the trickiest linked list problems: inserting a node into a sorted circular linked list. This problem looks simple at first, but the circular nature of the list introduces edge cases that confuse many learners — especially during interviews. 🔍 What you’ll learn in this video: What a sorted circular linked list actually is Why insertion is harder than normal linked list insertion How to handle: Empty list Single node list Inserting between two sorted nodes Inserting at the boundary (max → min transition) How to solve the problem in-place without breaking circular links Time and space complexity analysis 🧠 Key Patterns Covered: Circular traversal In-place linked list manipulation Handling edge cases cleanly Interview-style thinking 💡 This problem is commonly asked in FAANG and product-based company interviews and is a must-know if you’re mastering Linked List Patterns. 👨‍💻 Code walkthrough is explained line by line so that you can implement it confidently in any language. If you’re following the Babua DSA Patterns Course, this problem strengthens your foundation in: Linked Lists Pointer manipulation Circular data structures 👍 If this helped you, don’t forget to like, share, and subscribe for more pattern-based DSA content. 💬 Drop your doubts or alternative approaches in the comments — happy to help! Hashtags: #LinkedList #CircularLinkedList #SortedLinkedList #DSAPatterns #DataStructures #Algorithms #DSAInterview #CodingInterviews #FAANGPreparation #ProductBasedCompanies #LinkedListProblems #InPlaceAlgorithms #PointerManipulation #DSAJava #DSAPython #DSACPP #DSAforBeginners #CompetitiveProgramming #LeetCode #CodingTutorial #InterviewPreparation #CTOBhaiya #BabuaDSA Your Queries: insert sorted circular linked list sorted circular linked list linked list insertion circular linked list insertion linked list problems dsa linked list circular linked list tutorial faang linked list questions leetcode linked list interview linked list problem dsa patterns linked list interview questions linked list in place insertion data structures algorithms cto bhaiya babua dsa patterns coding interviews product based company prep CHAPTERS 00:00 - Introduction & Recap 02:06 - Insert Into a Sorted Circular Linked List - Theory 08:27 - Insert into a sorted linked list - Theory 35:59 - Insert Into a Sorted Circular Linked List - Code 49:40 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Znv_aEyKXM0 https://www.techtube.co.in/tutorials/day-390-master-two-pointer-pattern-5-leetcode-problems-explained-babua-dsa-patterns-2025-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/SP065oLnxGA/maxresdefault.jpg Day 3/90 🔥 Master Two Pointer Pattern | 5 LeetCode Problems Explained | Babua DSA Patterns 2025 #dsa Sheet Link: https://app.nextgen-cto.in/login JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/tree/main/3_Day Problems URLs: 88. Merge Sorted Array: https://leetcode.com/problems/merge-sorted-array/ 2824. Count Pairs Whose Sum is Less than Target: https://leetcode.com/problems/count-pairs-whose-sum-is-less-than-target/description/ 1. Two Sum: https://leetcode.com/problems/two-sum/description/ 680. Valid Palindrome II: https://leetcode.com/problems/valid-palindrome-ii/description/ 167. Two Sum II - Input Array Is Sorted : https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/description/ 15. 3Sum: https://leetcode.com/problems/3sum/description/ 🎯 Day 3/90 | Two Pointer Pattern Explained with LeetCode Problems Welcome to Day 3 of the Babua DSA Patterns Course 2025! Today, we explore the Two Pointer Pattern — one of the most powerful and efficient techniques for solving array and string problems in O(n) time. 🧩 Problems Covered Merge Sorted Array – LeetCode (Easy) Count Pairs Whose Sum is Less than Target – LeetCode (Easy) Two Sum – LeetCode (Easy) Two Sum II – Input Array is Sorted – LeetCode (Medium) 3Sum – LeetCode (Medium) 💡 What You’ll Learn Intuition behind using two pointers How it reduces complexity from O(n²) to O(n) Real-world pattern applications Dry runs, edge cases, and optimizations 👨‍🏫 Instructor Anuj Kumar (CTO Bhaiya) 🎥 YouTube: CTO Bhaiya 🔔 Join the Course 👉 Playlist: Babua DSA Patterns Course 2025 💬 Comment "Done" once you finish today’s problems! Hashtags: #BabuaDSAPatterns #TwoPointerPattern #CTOBhaiya #DSAin90Days #DSAPatterns2025 #LeetCodeSolutions #CodingInterviewPreparation #ApnaCollege #StriverSheet #TakeUForward #LoveBabbar #NamasteDev #TwoSum #ThreeSum #MergeSortedArray #CountPairsWhoseSumIsLessThanTarget #DataStructuresAndAlgorithms #CodingBootcamp #InterviewPreparation #FAANGInterviewPrep #DSAForBeginners #LearnToCode #ProgrammingCommunity #CompetitiveProgramming #DSATutorials #DSAProblems #DSACourse #NextGenCTO #CTOBhaiyaCommunity Your Queries: Babua DSA Patterns Two Pointer Pattern CTO Bhaiya DSA in 90 Days DSA Patterns 2025 LeetCode Problems Two Sum Three Sum Merge Sorted Array Count Pairs Whose Sum is Less than Target Striver Apna College Take U Forward Love Babbar Namaste Dev Coding Interview Preparation DSA Course DSA Bootcamp Data Structures and Algorithms Learn to Code Competitive Programming FAANG Interview Prep NextGen CTO DSA Tutorials CHAPTERS 00:00 Introduction 00:55 Two Pointer Pattern Recap 01:14 Problems List 02:40 88. Merge Sorted Array - Theory 12:46 88. Merge Sorted Array - Code 18:58 2824. Count Pairs Whose Sum is Less than Target - Theory 30:08 2824. Count Pairs Whose Sum is Less than Target - Code 34:28 1. Two Sum - Theory 42:23 1. Two Sum - Code 46:20 167. Two Sum II - Input Array Is Sorted - Theory 52:45 167. Two Sum II - Input Array Is Sorted - Code 56:03 15. 3Sum - Theory 01:13:04 15. 3Sum - Code 01:28:00 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 WhatsApp Community: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/SP065oLnxGA https://www.techtube.co.in/tutorials/day-3990-heaps-pattern-explained-theory-intuition-templates-part-1-dsa-pattern-6-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/CFzhn_iTIyE/maxresdefault.jpg Day 39/90 |⚡Heaps Pattern Explained (Theory + Intuition + Templates) - Part 1| DSA Pattern #6 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/39_Day Welcome to this video on the Heaps Pattern — one of the most powerful and widely used problem-solving techniques in coding interviews, competitive programming, and real-world systems. In this video, we focus on the theory, intuition, and mental models behind heaps so you understand when, why, and how to use them — not just memorize code. 🔍 What You’ll Learn in This Video ✅ Why Heaps Exist Why full sorting is inefficient for repeated min/max queries How heaps give instant access to the most important element Why heaps outperform arrays and linked lists for priority-based problems ✅ What a Heap Really Is Min Heap vs Max Heap explained intuitively Heap vs Priority Queue (data structure vs abstraction) How partial ordering is enough to solve many problems efficiently ✅ Single Heap Pattern When to use a single heap Typical use cases: Top K elements Priority scheduling Repeated min/max selection Time & space complexity breakdown General coding template you can reuse in interviews ✅ Two Heaps Pattern (Advanced & Extremely Important) Why some problems need two heaps instead of one How data is split into two halves Role of: Max Heap → smaller half Min Heap → larger half Core invariants that must always hold How this pattern solves: Median of a data stream Sliding window median Balance-based problems ✅ Step-by-Step Intuition How insertion works How rebalancing works How median is derived in O(1) time Why the overall solution runs in O(log n) per update 🧠 Why This Pattern Is Critical Frequently asked in FAANG and product-based interviews Appears in follow-ups and hard variants Essential for streaming and real-time problems Builds strong priority and optimization intuition 👩‍💻 Languages Covered Java • C++ • Python • JavaScript 🎓 Perfect For DSA beginners struggling with heaps Students preparing for placements FAANG aspirants Anyone learning DSA patterns the right way Hashtags: #HeapPattern #HeapsDSA #PriorityQueue #SingleHeap #TwoHeaps #MedianOfStream #SlidingWindowMedian #DSAPatterns #CodingInterviewPrep #FAANGPreparation #BabuaDSAPatterns #CTOBhaiya #DSAIn90Days #LearnDSA #DataStructuresAndAlgorithms #AlgorithmPatterns #OptimizedSolutions #CrackCodingInterviews #CodingForBeginners #InterviewDSA Your Queries: Heap pattern Heaps DSA Priority queue Single heap Two heaps pattern Median of stream Sliding window median Heap interview questions Heap data structure Min heap max heap Babua DSA Patterns CTO Bhaiya DSA in 90 Days Coding interview prep FAANG preparation Learn DSA fast Data Structures and Algorithms Heap problems LeetCode Coding for beginners Algorithm patterns CHAPTERS 00:00 - Introduction & Recap 00:31 - Intuition Behind Heap Pattern 05:36 - What is HEAPS Pattern 18:53 - Real-World Intuition of Heap 27:30 - What is a HEAP 34:33 - Heap Storage (Array-Based) 40:40 - Constructing Heaps (Visualisation) 49:48 - Single Heap Pattern 01:07:10 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/CFzhn_iTIyE https://www.techtube.co.in/tutorials/day-4090-heaps-pattern-explained-theory-intuition-templates-part-2-dsa-pattern-6-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/YmUxlVM4h-4/maxresdefault.jpg Day 40/90 |⚡Heaps Pattern Explained (Theory + Intuition + Templates) - Part 2| DSA Pattern #6 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/40_Day Heaps are one of the most powerful yet misunderstood data structures in DSA. In this video, you’ll deeply understand two critical things: 1️⃣ The intuition behind using TWO heaps 2️⃣ How to analyze problems and decide when a heap is the right tool Instead of memorizing patterns, we focus on thinking like an interviewer and breaking down problems logically. 🔹 What You’ll Learn in This Video ✅ Why heaps exist (real-world intuition) ✅ When one heap is enough vs when two heaps are required ✅ What does “splitting data into two parts” actually mean ✅ Two Heap setup explained clearly: Max Heap → smaller half Min Heap → larger half ✅ Why this setup helps in: Median of a stream Balancing data dynamically Continuous data processing 🔹 How to Analyze Heap Problems (Step-by-Step) You’ll learn to ask these exact questions during problem solving: 🧠 Do I need the smallest or largest element repeatedly? 🧠 Is data coming continuously (stream)? 🧠 Do I need ordering without full sorting? 🧧 Do I need to split data into two balanced parts? If the answer is YES → Heap Pattern detected ✅ 🔹 Problems This Intuition Helps You Solve ✔️ Median from Data Stream ✔️ Top K Elements ✔️ Kth Largest / Smallest ✔️ Sliding Window Median ✔️ Priority Scheduling Problems 🎯 Why This Video Matters Most students: ❌ Memorize heap code ❌ Fail to identify heap problems This video helps you: ✅ Build intuition ✅ Analyze unseen problems ✅ Apply heaps confidently in interviews Perfect for FAANG / Product-based company preparation. 🧩 Who Should Watch This? Beginners struggling with heaps Students preparing for coding interviews Anyone learning DSA Patterns the right way 📌 Part of the Heap Pattern Playlist 📌 Taught in simple, logical, interview-focused style If this helped you, LIKE, SHARE & SUBSCRIBE 🚀 Drop your doubts in comments — we solve together 💪 Hashtags: #HeapDataStructure #TwoHeaps #HeapPattern #DSAPatterns #MedianOfDataStream #PriorityQueue #TopKElements #KthLargest #KthSmallest #SlidingWindowMedian #CodingInterviews #FAANGPreparation #ProductBasedCompanies #DSAWithIntuition #DataStructuresAndAlgorithms #DSAForPlacements #InterviewPreparation #LearnDSA #CompetitiveProgramming #CTOBhaiya Your Queries: heap data structure two heaps approach heap pattern dsa patterns priority queue explained median of data stream top k elements kth largest element kth smallest element sliding window median heap interview questions heap intuition dsa for interviews faang dsa preparation product based company dsa coding interview preparation data structures and algorithms learn heaps heap problems tutorial cto bhaiya CHAPTERS 00:00 - Introduction & Recap 04:42 - Two Heaps Intuition 17:40 - Problems match Heap Pattern 21:50 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/YmUxlVM4h-4 https://www.techtube.co.in/tutorials/day-4190-last-stone-weight-digit-swap-parity-heap-pattern-explained-dsa-pattern-6-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/RyHbZeREpd0/maxresdefault.jpg Day 41/90 |⚡Last Stone Weight + Digit Swap Parity | Heap Pattern Explained | DSA Pattern #6 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/41_Day In this video, we solve two very important interview problems that teach you how to think in terms of heaps and greedy logic: 1️⃣ Last Stone Weight (Heap / Priority Queue) 2️⃣ 2231. Largest Number After Digit Swaps by Parity (Greedy + Sorting by parity) Instead of just coding, we focus on intuition, problem analysis, and why the solution works — exactly how interviewers expect you to think. 🔹 Problem 1: Last Stone Weight (Heap Intuition) You are given stones with different weights. Each turn, you smash the two heaviest stones together. This problem teaches you: Why we use a Max Heap How to repeatedly extract maximum elements efficiently How to convert min-heap to max-heap (in Java / Python) Time complexity analysis of heap-based solutions 📌 Key idea: “Whenever you repeatedly need the largest element → use a heap” 🔹 Problem 2: 2231. Largest Number After Digit Swaps by Parity You are allowed to swap digits only with the same parity (odd ↔ odd, even ↔ even). Goal: form the largest possible number. This problem teaches you: How to separate digits by parity Why greedy works here How sorting helps maximize the number How to rebuild the answer correctly 📌 Key idea: “When swaps are restricted, group elements and optimize locally” 🧠 What You’ll Learn ✅ Heap intuition with a real problem ✅ When to use PriorityQueue ✅ Greedy thinking for constrained swaps ✅ Step-by-step dry run ✅ Clean, interview-ready code ✅ Time & space complexity analysis 🎯 Why These Problems Matter These are classic interview questions asked in: FAANG interviews Product-based companies Online assessments DSA rounds for placements They help you master Heap Pattern + Greedy Pattern, two of the most important patterns in DSA. 👨‍🎓 Who Should Watch Beginners learning heaps Students preparing for interviews Anyone struggling with greedy problems DSA pattern learners 📌 Part of DSA Patterns Course 📌 Explained with intuition, not memorization If you found this helpful, LIKE 👍 | SHARE 🔁 | SUBSCRIBE 🚀 Comment your doubts — we solve together 💪 Hashtags: #LastStoneWeight #LeetCode2231 #HeapDataStructure #PriorityQueue #HeapPattern #GreedyAlgorithm #DigitSwapProblem #ParityBasedSwap #DSAPatterns #DSAForInterviews #CodingInterviewQuestions #FAANGPreparation #ProductBasedCompanies #LeetCodeProblems #DSAWithIntuition #DataStructuresAndAlgorithms #PlacementPreparation #CTOBhaiya #LearnDSA Your Queries: last stone weight leetcode last stone weight largest number after digit swaps by parity leetcode 2231 heap data structure priority queue explained heap pattern greedy algorithm dsa patterns heap interview questions parity swap problem leetcode greedy problems coding interview preparation faang dsa questions product based company dsa placement preparation data structures and algorithms learn heaps cto bhaiya CHAPTERS 00:00 - Introduction & Recap 01:10 - LeetCode 1046 - Approach 1 - Theory 10:15 - LeetCode 1046 - Approach 1 - Code 18:21 - LeetCode 1046 - Approach 2 - Theory 20:45 - LeetCode 1046 - Approach 2 - Code 28:12 - LeetCode 2231 - Approach 1 - Theory 41:32 - LeetCode 2231 - Approach 1 - Code 54:27 - LeetCode 2231 - Approach 2 - Theory 01:02:25 - LeetCode 2231 - Approach 2 - Code 01:09:25 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/RyHbZeREpd0 https://www.techtube.co.in/tutorials/day-4290-master-heaps-with-these-2-famous-interview-problems-dsa-pattern-6-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/kGQqcQFYMmc/maxresdefault.jpg Day 42/90 |⚡Master Heaps with These 2 Famous Interview Problems | DSA Pattern #6 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/42_Day In this video, we break down two classic heap-based problems that every serious DSA learner must master: 🧩 Problem 1: Longest Happy String We learn how to construct the longest possible string without repeating any character more than twice in a row. 👉 You’ll understand: Why greedy choice works here How a max heap helps always pick the best character How to avoid violating the “no three consecutive characters” rule How to think like an interviewer while building the string This problem teaches you controlled greedy thinking using heaps — a skill that appears again and again in hard interview problems. 📊 Problem 2: Find Median from Data Stream We solve the famous streaming median problem using two heaps. 👉 You’ll learn: Why we use one max heap + one min heap How balancing heaps gives us the median in O(1) How to maintain order while numbers keep arriving The exact intuition behind “left half” and “right half” of data This is a core system design + DSA hybrid problem and is asked frequently in FAANG interviews. 🧠 What You’ll Take Away How to recognize heap pattern problems How greedy + heaps work together How to build intuition instead of memorizing code How to explain your solution confidently in interviews 🎯 Perfect for: Coding interviews DSA pattern mastery Heap & priority queue intuition Students preparing for FAANG / product companies 🔔 Subscribe for daily DSA patterns, intuition-based explanations, and interview problem walkthroughs 📚 Playlist: Heap Pattern Series 💬 Comment if you want a dry run or whiteboard explanation for these problems! Hashtags: #DSA #Heap #PriorityQueue #GreedyAlgorithm #CodingInterview #FAANGPreparation #LeetCode #LeetCodeSolutions #DataStructures #Algorithms #MedianOfDataStream #LongestHappyString #HeapPattern #DSAPatterns #InterviewProblems #SoftwareEngineering #CodingForInterviews #JavaDSA #ProblemSolving #CompetitiveProgramming #TechInterviews #LearnDSA #DSATutorial #CodingConcepts Your Queries: longest happy string median of data stream heap pattern priority queue dsa greedy algorithm dsa find median data stream two heap approach max heap min heap leetcode heap problems dsa interview questions faang dsa prep coding interview prep java priorityqueue java dsa heap interview problems data stream problems median finder leetcode 295 leetcode 1405 algorithm intuition dsa patterns course learn heaps competitive programming CHAPTERS 00:00 - Introduction & Recap 00:34 - LeetCode 1405 - Approach 1 - Theory 22:05 - LeetCode 1405 - Approach 1 - Code 37:35 - LeetCode 1405 - Approach 2 - Theory 48:18 - LeetCode 1405 - Approach 2 - Code 01:09:45 - LeetCode 295 - Approach 1 - Theory 01:15:05 - LeetCode 295 - Approach 1 - Code 01:22:04 - LeetCode 295 - Approach 2 - Theory 01:40:42 - LeetCode 295 - Approach 2 - Code 01:51:00 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/kGQqcQFYMmc https://www.techtube.co.in/tutorials/day-4390-how-to-think-your-way-from-on-to-on-log-n-leetcode-1942-dsa-pattern-6-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/eqYWK8kSiqI/maxresdefault.jpg Day 43/90 |⚡How to Think Your Way from O(n²) to O(n log n) | LeetCode 1942 | DSA Pattern #6 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/43_Day In this video, we solve LeetCode 1942 – The Number of the Smallest Unoccupied Chair step by step, starting from a brute force approach and then optimizing it using two heaps (priority queues). This problem is a perfect example of how thinking in terms of events and resources helps us move from an O(n²) solution to an efficient O(n log n) one. 🧠 What you’ll learn in this video: How to think about the problem intuitively (chairs as resources) Brute force approach and why it works (but is slow) Why we need to always know the smallest free chair How to use two heaps to optimize the solution One heap to track available chairs One heap to track occupied chairs (by leaving time) How to handle arrival and departure events correctly Final optimized solution with clean explanation Time & space complexity comparison ⏱️ Complexity Breakdown: Brute Force: O(n²) Two Heaps Optimized: O(n log n) Space Complexity: O(n) 🎯 Interview Takeaway: If a problem repeatedly asks for the minimum available resource, a min heap is almost always the right tool. This pattern is extremely common in: Meeting rooms CPU scheduling Resource allocation Simulation problems 💡 If you're preparing for interviews: This video will help you build problem-solving intuition, not just memorize code. 👉 Like, Share & Subscribe for more intuition-first DSA explanations 👉 Comment if you want more heap-pattern problems explained Hashtags: #LeetCode1942 #HeapDataStructure #PriorityQueue #TwoHeaps #BruteForceToOptimized #DSAInterview #CodingInterview #AlgorithmIntuition #GreedyAlgorithm #EventSimulation #ResourceAllocation #SchedulingProblems #FAANGPreparation #SystematicProblemSolving #JavaDSA #DSAinJava #DataStructuresAndAlgorithms #CompetitiveProgramming #InterviewPreparation #CodingPatterns #HeapPattern #ProblemSolvingSkills #DSATutorial #LeetCodeSolutions #LearnDSA Your Queries: leetcode 1942 smallest unoccupied chair smallest chair problem two heaps algorithm priority queue problems heap intuition brute force to optimized resource allocation algorithm meeting rooms pattern event simulation problems dsa heap problems greedy with heaps leetcode heap solution java priorityqueue dsa interview questions coding interview preparation faang dsa algorithm optimization learn heaps CHAPTERS 00:00 - Introduction & Recap 01:25 - LeetCode 1942 - Approach 1 - Theory 17:05 - LeetCode 1942 - Approach 1 - Code 28:17 - LeetCode 1942 - Approach 2 - Theory 49:19 - LeetCode 1942 - Approach 2 - Code 01:00:10 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/eqYWK8kSiqI https://www.techtube.co.in/tutorials/day-4490-meeting-rooms-iii-explained-for-interviews-brute-force-to-optimized-6-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/N-m_wdN6vuc/maxresdefault.jpg Day 44/90 |⚡Meeting Rooms III Explained for Interviews (Brute Force to Optimized) #6 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/44_Day 📌 Meeting Rooms III Explained | Brute Force → Two Heaps Optimized (Interview Intuition) In this video, we solve Meeting Rooms III step by step — starting from the brute force approach and slowly evolving it into the optimal two-heaps solution that interviewers expect. Most students jump straight to the optimized solution and get confused. So here, we focus on intuition first, code later. 🧠 What you’ll learn in this video: How to think in brute force first (the correct interview mindset) Why brute force fails for large inputs The key observation: we repeatedly need the earliest available room How this observation naturally leads to heaps Why we need two heaps (available rooms & ongoing meetings) Step-by-step dry run with example Clean Java implementation Time & space complexity comparison Interview tips to explain this solution confidently 🔁 Problem Flow Explained Brute Force Try to assign every meeting to a room by checking all rooms Works, but too slow (O(n²)) Optimized (Two Heaps) Min-heap 1 → tracks available room numbers Min-heap 2 → tracks meetings by end time Always pick the earliest free room If no room is free, delay the meeting Works in O(n log n) and passes all constraints 🎯 Why this problem is important Meeting Rooms III is a classic heap pattern asked in: FAANG interviews System design discussions Scheduling & resource allocation problems Real-world systems (CPU scheduling, servers, bookings) Once you understand this, you’ll be able to solve: Meeting Rooms I & II CPU scheduling problems Task scheduling with cooldown Interval + heap problems confidently 💬 If this helped you: 👍 Like the video 🔔 Subscribe for daily DSA intuition videos 💬 Comment if you want more heap-based interview problems explained 🚀 Part of my DSA Interview Series This video is part of my step-by-step DSA series where I teach you how to think, not just code. Hashtags: #MeetingRoomsIII #HeapDataStructure #TwoHeaps #BruteForceToOptimized #DSAInterview #DSAwithJava #JavaDSA #CodingInterviewPrep #FAANGPreparation #HeapPattern #IntervalProblems #SchedulingAlgorithm #GreedyAlgorithm #PriorityQueue #AlgorithmIntuition #LearnDSA #SystemDesignBasics #DSAForBeginners #DSAExplained #CompetitiveProgramming Your Queries: meeting rooms iii meeting rooms 3 meeting rooms iii solution meeting rooms iii explanation meeting rooms iii java meeting rooms iii two heaps meeting rooms brute force heap interview problems two heap technique priority queue java dsa heap problems interval scheduling problem meeting rooms problem coding interview heap faang heap questions greedy scheduling algorithm dsa interview prep java dsa algorithm intuition heap pattern problems leetcode meeting rooms CHAPTERS 00:00 - Introduction & Recap 00:44 - LeetCode 2402 - Approach 1 - Theory 17:16 - LeetCode 2402 - Approach 1 - Code 39:39 - LeetCode 2402 - Approach 2 - Theory 01:00:05 - LeetCode 2402 - Approach 2 - Code 01:19:55 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/N-m_wdN6vuc https://www.techtube.co.in/tutorials/day-4590-436-find-right-interval-explained-brute-force-to-heaps-leetcode-436-6-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/bv6VblPQLXg/maxresdefault.jpg Day 45/90 |⚡436. Find Right Interval Explained | Brute Force to Heaps (LeetCode 436) #6 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/45_Day In this video, we’ll deeply understand the “Find Right Interval” problem (LeetCode 436) by starting from the brute force approach and then upgrading it to an optimized solution using two heaps (priority queues). Instead of jumping straight to the code, I’ll show you how to think like an interviewer expects: Why brute force works Where it becomes slow What information we repeatedly search for How heaps help us remove unnecessary comparisons This problem is a perfect example of converting an O(n²) solution into O(n log n) using the right data structure. 🧠 What You’ll Learn ✔️ Problem intuition with a simple example ✔️ Brute force approach (why it works, why it’s slow) ✔️ Observing the pattern: start vs end intervals ✔️ Using two min-heaps to optimize the search ✔️ Step-by-step heap simulation ✔️ Time & space complexity comparison ✔️ Interview-ready explanation 💡 Key Insight For every interval end, we want the smallest start ≥ end That’s a classic “next greater element” pattern — solved efficiently with heaps. 👨‍💻 Perfect For DSA beginners Interview prep (FAANG / Product companies) Anyone learning heap patterns Students struggling to move from brute force to optimized thinking 🔔 Subscribe for more such explanations I upload daily problem-solving videos with clear intuition, patterns, and interview-level reasoning. Hashtags: #LeetCode436 #FindRightInterval #DataStructuresAndAlgorithms #HeapDataStructure #PriorityQueue #TwoHeaps #BruteForceToOptimized #DSAInterviewPrep #CodingInterview #FAANGPreparation #AlgorithmIntuition #ProblemSolvingSkills #DSAPatterns #CodingForInterviews #LeetCodeSolutions #LeetCodeDaily #DSAinJava #DSAinPython #LearnHeaps #InterviewReady Your Queries: leetcode 436 find right interval find right interval leetcode leetcode heap problem heap interview question priority queue leetcode two heaps approach brute force to optimized dsa heap problems interval problems leetcode coding interview preparation faang interview dsa algorithm intuition data structures and algorithms dsa in java dsa in python leetcode solution explained leetcode interview problems heap pattern next greater element interval CHAPTERS 00:00 - Introduction & Recap 00:28 - LeetCode 436 - Approach 1 - Theory 06:21 - LeetCode 436 - Approach 1 - Code 17:33 - LeetCode 436 - Approach 2 - Theory 31:53 - LeetCode 436 - Approach 2 - Code 41:50 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/bv6VblPQLXg https://www.techtube.co.in/tutorials/day-4690-minimum-cost-to-connect-sticks-explained-simply-gfg-6-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/pEDv-fyybHA/maxresdefault.jpg Day 46/90 |⚡Minimum Cost to Connect Sticks Explained Simply | GFG #6 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/46_Day Minimum Cost to Connect Sticks (Ropes) | Greedy + Min Heap Explained In this video, we solve the classic greedy problem Minimum Cost to Connect Sticks (also known as Minimum Cost to Cut Ropes) using a Min Heap (Priority Queue). The goal is simple: 👉 Given multiple sticks (ropes) of different lengths, we need to connect them into one stick with minimum total cost, where the cost of each connection is the sum of the two sticks being connected. But why does merging the two smallest sticks first always give the optimal answer? And how does a min heap make this solution efficient? In this video, you’ll learn: ✔️ Problem intuition with real examples ✔️ Why greedy works (Huffman coding intuition) ✔️ Step-by-step explanation using a min heap ✔️ Dry run with sample inputs ✔️ Time & space complexity analysis ✔️ Clean and interview-ready approach This problem is a perfect example of how greedy algorithms + heaps work together and is frequently asked in coding interviews. 📍 Problem Link: Minimum Cost to Connect Sticks – LeetCode 1167 ⏱️ Complexity Time Complexity: O(n log n) Space Complexity: O(n) 🔔 Who should watch? DSA beginners learning Greedy Algorithms Students preparing for FAANG interviews Anyone struggling to understand why min heap works If this helped you, don’t forget to 👍 Like, 💬 Comment, and 🔔 Subscribe for more DSA explanations with intuition! Hashtags: #MinimumCostToConnectSticks #MinimumCostToCutRopes #GreedyAlgorithm #MinHeap #PriorityQueue #LeetCode1167 #LeetCodeGreedy #HeapDataStructure #HuffmanCoding #DSA #DataStructuresAndAlgorithms #CodingInterview #FAANGPreparation #InterviewQuestions #CompetitiveProgramming #AlgorithmExplanation #GreedyWithHeap #ProblemSolving #DSATutorial #LearnDSA Your Queries: minimum cost to connect sticks minimum cost to cut ropes min heap greedy algorithm leetcode 1167 priority queue problem greedy algorithm with heap huffman coding intuition heap data structure merge sticks minimum cost rope cutting problem dsa greedy problems coding interview heap questions faang greedy questions leetcode greedy solution heap based problems algorithm explanation data structures tutorial CHAPTERS 00:00 - Introduction & Recap 00:30 - GFG - Minimum Cost of Ropes - Theory 13:28 - GFG - Minimum Cost of Ropes - Code 19:55 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/pEDv-fyybHA https://www.techtube.co.in/tutorials/day-4790-task-scheduler-explained-max-heap-cooldown-queue-leetcode-621-gfg-6-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/z62e3B4ERJ4/maxresdefault.jpg Day 47/90 |⚡Task Scheduler Explained | Max Heap + Cooldown Queue (LeetCode 621) | GFG #6 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/47_Day In this video, we deep-dive into the Task Scheduler problem (LeetCode 621) and understand why a greedy approach using a Max Heap + cooldown queue works. Instead of memorizing formulas, we simulate the CPU execution step by step, exactly how a real scheduler would behave. This makes the logic intuitive, easy to debug, and interview-ready. 🔍 What you’ll learn in this video: Why highest frequency tasks must be executed first How a Max Heap (Priority Queue) helps pick the best task at every moment Why we need a cooldown queue and how execution time is tracked How to simulate time unit by unit to avoid unnecessary idle slots Step-by-step walkthrough with examples Time and space complexity analysis 🧠 Core Idea: At every unit of time: Execute the task with the highest remaining frequency Put it into a cooldown queue if it still has pending executions Bring tasks back into the heap once their cooldown finishes This greedy strategy guarantees the minimum total execution time while respecting the cooldown constraint. 👨‍💻 Topics Covered: Greedy algorithms Priority Queue (Max Heap) Queue-based cooldown simulation CPU scheduling intuition Interview-friendly problem solving 💡 Who should watch? LeetCode / DSA learners Software engineering interview candidates Anyone struggling to understand why the Task Scheduler solution works If this explanation helped you build intuition, don’t forget to like, share, and subscribe for more clean, concept-driven DSA explanations 🚀 Happy coding! 💻🔥 Hashtags: #TaskScheduler #LeetCode621 #LeetCode #DSA #DataStructuresAndAlgorithms #GreedyAlgorithm #PriorityQueue #MaxHeap #Queue #CPU_Scheduling #InterviewPreparation #CodingInterview #SoftwareEngineering #AlgorithmExplanation #LeetCodeSolutions #ProblemSolving #CompetitiveProgramming #Java #CodingTutorial #DSAInJava Your Queries: task scheduler leetcode leetcode 621 task scheduler problem leetcode task scheduler java greedy algorithm leetcode priority queue leetcode max heap leetcode cooldown queue algorithm cpu scheduling algorithm task scheduler explained leetcode greedy problems heap and queue leetcode dsa interview questions java dsa leetcode coding interview preparation leetcode hard explained algorithm intuition CHAPTERS 00:00 - Introduction & Recap 01:03 - LeetCode 621 - Task Scheduler - Theory 37:10 - LeetCode 621 - Task Scheduler - Code 48:10 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/z62e3B4ERJ4 https://www.techtube.co.in/tutorials/day-4890-master-sliding-window-median-brute-force-made-simple-leetcode-480-6-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/cqdJ1k7SNfQ/maxresdefault.jpg Day 48/90 |⚡Master Sliding Window Median 🔥 Brute Force Made Simple | LeetCode 480 #6 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/48_Day In this video, we break down the Sliding Window Median problem (LeetCode 480) using the Brute Force approach — step by step and beginner-friendly. If you've ever struggled to understand how sliding windows work when combined with sorting and median calculation, this video is for you. We start with: • What the problem is asking • How the sliding window moves • How to extract each window • Sorting each window • Handling odd vs even window sizes • Calculating medians correctly (important edge cases!) Even though this approach is not the most optimal, understanding brute force builds the foundation for advanced solutions like the two-heap approach. Time Complexity Discussion: For each window of size k: • We copy k elements • Sort them → O(k log k) • Do this for (n − k + 1) windows Overall complexity: O((n − k) × k log k) This is a must-know baseline before jumping into optimized heap-based solutions. If you're preparing for coding interviews or improving your problem-solving skills in Data Structures & Algorithms, this video will strengthen your fundamentals. Let me know in the comments if you’d like the optimized heap solution next 🚀 Hashtags: #SlidingWindowMedian #LeetCode480 #SlidingWindow #DSA #DataStructures #Algorithms #CodingInterviewPreparation #LeetCodeSolutions #BruteForceApproach #MedianProblem #HeapVsBruteForce #InterviewCoding #JavaDSA #CompetitiveProgramming #CodingForBeginners #FAANGPreparation #TechInterviewPrep #ProgrammingLogic #AlgorithmExplanation #LearnToCode Your Queries: sliding window median sliding window median leetcode leetcode 480 solution sliding window median brute force sliding window median java sliding window median explanation sliding window technique leetcode sliding window problems dsa sliding window median in sliding window coding interview preparation data structures and algorithms brute force vs heap sliding window tutorial leetcode solutions java interview coding problems CHAPTERS 00:00 - Introduction & Recap 01:24 - LeetCode 621 - Task Scheduler - Theory 14:50 - LeetCode 480 - Sliding Window Median - Theory 23:50 - LeetCode 480 - Sliding Window Median - Code 38:35 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/cqdJ1k7SNfQ https://www.techtube.co.in/tutorials/day-4890-master-sliding-window-median-leetcode-480-lazy-deletion-with-two-heaps-6-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/voX8UCz-04U/maxresdefault.jpg Day 48/90 |⚡Master Sliding Window Median (LeetCode 480) | Lazy Deletion with Two Heaps #6 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/48_Day Here’s a clean, SEO-optimized YouTube description for your video: 🔥 Sliding Window Median – Lazy Removal Explained with Two Heaps | Step-by-Step Intuition In this video, we break down the Sliding Window Median problem and deeply understand the lazy removal technique using two heaps (max-heap + min-heap). If you've ever struggled with: Removing arbitrary elements from a heap Maintaining balance between two heaps Handling duplicate values efficiently Understanding delayed (lazy) deletion This video will make everything crystal clear. 📌 What You’ll Learn ✔️ Why brute force fails for large inputs ✔️ How two heaps maintain the median in O(log k) time ✔️ What is lazy removal and why it’s needed ✔️ How to track invalid elements using a HashMap ✔️ Heap balancing logic step-by-step ✔️ Full intuition + clean implementation strategy ✔️ Time & Space Complexity analysis 🧠 Core Idea We maintain: A max heap → stores smaller half A min heap → stores larger half When elements slide out of the window: We mark them for removal (lazy deletion) Physically remove them only when they reach the top This ensures: 👉 Efficient deletions 👉 O(n log k) total complexity 👉 Clean and scalable approach ⏱ Time Complexity O(n log k) Each insertion and removal costs log k Lazy removal ensures we avoid expensive heap operations 🎯 Perfect For LeetCode 480 – Sliding Window Median FAANG interview prep Heap-based problems Advanced sliding window techniques Competitive programming If you're preparing for coding interviews or want to master heap problems deeply, this video is a must-watch. Like 👍 | Comment 💬 | Subscribe 🔔 for more structured DSA content. Hashtags: #SlidingWindowMedian #LazyRemoval #TwoHeaps #HeapDataStructure #PriorityQueue #MaxHeap #MinHeap #LeetCode480 #CodingInterview #DSA #DataStructures #Algorithms #InterviewPreparation #FAANGPreparation #CompetitiveProgramming #JavaProgramming #CPPCoding #TechInterview #ProblemSolving #CodingPractice Your Queries: sliding window median sliding window median two heaps lazy removal sliding window lazy deletion heap approach sliding window median lazy removal leetcode 480 solution leetcode sliding window median java sliding window median cpp median in sliding window heap approach two heaps technique median max heap min heap median priority queue sliding window coding interview heap problems data structures and algorithms dsa interview preparation faang coding problems competitive programming heaps CHAPTERS 00:00 - Introduction & Recap 01:32 - LeetCode 480 - Sliding Window Median - Theory 36:36 - LeetCode 480 - Sliding Window Median - Code 56:27 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/voX8UCz-04U https://www.techtube.co.in/tutorials/day-490-three-popular-interview-questions-two-pointer-pattern-babua-dsa-patterns-2025-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/pcj6S1KLxWc/maxresdefault.jpg Day 4/90 🔥Three Popular Interview Questions Two Pointer Pattern | Babua DSA Patterns 2025 #dsa Sheet Link: https://app.nextgen-cto.in/login JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/tree/main/4_Day Problems URLs: Sort Two Colors: https://www.programiz.com/java-programming/online-compiler/ 75. Sort Colors: https://leetcode.com/problems/sort-colors/description/ 19. Remove Nth Node From End of List: https://leetcode.com/problems/remove-nth-node-from-end-of-list/description/ Day 4/90 | Babua DSA Patterns 2025 Welcome back to Day 4/90 of the Babua DSA Patterns Course 2025! Today we tackle three extremely popular Two Pointer interview problems that appear in almost every coding interview—from startups to FAANG. These problems test your understanding of pointer manipulation, array partitioning, and linked list traversal. If you master today’s set, you’ll breeze through medium-level DSA interviews. 🔥 What You Will Learn Today 1. Sort Two Colors (Khud Se — Medium) Understand the intuition behind separating 0s, 1s, and 2s using the classic Dutch National Flag + Two Pointer approach. Learn pointer movement, swapping logic, and why this optimal solution beats counting sort. 2. 75. Sort Colors (LeetCode — Medium) A refined version of the above problem, asked repeatedly in interviews. Learn how to maintain low, mid, and high pointers to sort the array in a single pass (O(n), O(1)). 3. 19. Remove Nth Node From End of List (LeetCode — Medium) A beautiful linked-list two-pointer problem. We break down: Slow & fast pointer movement Why the offset trick works Edge cases (head removal, single node, k = length) This is one of the most important linked list problems every interview expects. 🎯 Who Should Watch? Students preparing for tech interviews LeetCode daily problem solvers Beginners learning DSA Anyone following the Babua DSA Patterns Course 2025 💬 Comment “Done” when you’re finished with Day 4/90! Stay consistent, babua. 2025 is your year to crack placements. 🚀💙 Hashtags: #DSAPatterns #BabuaDSAPatterns #TwoPointerPattern #SortColors #DutchNationalFlagAlgorithm #RemoveNthNode #LinkedListProblems #LeetCodeMedium #CodingInterviewPrep #DSAin90Days #CTOBhaiya #AnujKumarDSA #Striver #TakeUForward #ApnaCollege #LoveBabbar #NamasteDev #CodingForInterviews #DataStructuresAndAlgorithms #LearnToCode #PlacementPreparation #FAANGInterviewPrep #SoftwareEngineeringPrep #NextGenCTO Your Queries: two pointer pattern sort colors leetcode sort two colors dutch national flag algorithm remove nth node from end of list leetcode medium problems dsa patterns 2025 babua dsa patterns cto bhaiya anuj kumar dsa coding interview preparation striver tUf take u forward apna college dsa love babbar dsa linked list two pointers array two pointer problems faang interview prep dsa in 90 days nextgen cto CHAPTERS 00:00 Introduction 01:37 Sort Two Colors - Theory 09:25 Sort Two Colors - Code 14:50 75. Sort Colors - Theory 27:00 75. Sort Colors - Code 32:00 19. Remove Nth Node From End of List - Theory 33:48 19. Remove Nth Node From End of List - Approach 1 (Theory) 43:28 19. Remove Nth Node From End of List - Approach 1 (Code) 48:00 19. Remove Nth Node From End of List - Approach 2 (Theory) 50:52 19. Remove Nth Node From End of List - Approach 2 (Code) 54:00 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 WhatsApp Community: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/pcj6S1KLxWc https://www.techtube.co.in/tutorials/day-4990-502-ipo-problem-explained-leetcode-hard-brute-force-optimized-greedy-heap-6 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/1LpcSoI4AZw/maxresdefault.jpg Day 49/90 |⚡📈 502. IPO Problem Explained (LeetCode Hard) | Brute Force → Optimized Greedy + Heap #6 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/48_Day 📈 IPO Problem Explained (LeetCode Hard) | Brute Force → Optimized Greedy + Heap Struggling to understand the IPO problem on LeetCode? In this video, we break it down step by step with clear intuition and visuals so you can truly understand why the greedy approach works. We start with the brute force solution to build intuition and identify the bottlenecks. Then we transition to the optimized approach using a max heap and sorting, explaining how to always pick the most profitable project you can afford at each step. By the end of this video, you’ll understand: ✅ Problem intuition with examples ✅ Brute force approach and why it’s inefficient ✅ Greedy insight behind the optimal solution ✅ Heap-based implementation walkthrough ✅ Time & space complexity analysis ✅ Common mistakes and edge cases This is a must-watch if you’re preparing for coding interviews, FAANG, or system design rounds where greedy + heap patterns are frequently tested. If you're preparing for coding interviews or want to master heap problems deeply, this video is a must-watch. Like 👍 | Comment 💬 | Subscribe 🔔 for more structured DSA content. Hashtags: #leetcode #leetcodehard #ipoleetcode #datastructures #algorithms #greedyalgorithm #heap #priorityqueue #codinginterview #interviewpreparation #faangpreparation #dsa #dsapreparation #codingquestions #programming #computerscience #softwareengineering #leetcodeexplained #codingtutorial #placements Your Queries: IPO leetcode IPO problem explained leetcode IPO solution IPO leetcode hard greedy algorithm leetcode heap leetcode priority queue interview questions leetcode greedy problems coding interview preparation DSA greedy problems IPO max heap solution leetcode walkthrough FAANG interview questions data structures and algorithms leetcode solutions explained coding tutorials placement preparation CHAPTERS 00:00 - Introduction & Recap 00:55 - LeetCode 502 - IPO - Approach 1 - Theory 23:23 - LeetCode 502 - IPO - Approach 1 - Code 34:10 - LeetCode 502 - IPO - Approach 1 - Observations - Theory 45:12 - LeetCode 502 - IPO - Approach 2 - Theory 52:44 - LeetCode 502 - IPO - Approach 2 - Code 01:03:03 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/1LpcSoI4AZw https://www.techtube.co.in/tutorials/day-5090-1354-construct-target-array-with-multiple-sumsreverse-thinking-heap-intuition-6 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/kgOBkLcfu4U/maxresdefault.jpg Day 50/90 |⚡1354. Construct Target Array With Multiple Sums🔥|Reverse Thinking + Heap Intuition #6 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/50_Day 📌 1354. Construct Target Array With Multiple Sums | Intuition + Optimal Solution | Heap + Greedy In this video, we break down LeetCode 1354 — Construct Target Array With Multiple Sums step by step. This is a tricky problem that looks complex at first, but once you understand the reverse thinking approach and how it relates to the Euclidean algorithm, the solution becomes much clearer. We’ll cover: ✅ Problem intuition with simple examples ✅ Why working backwards is the key insight ✅ Greedy strategy using a max heap ✅ How the modulo optimization avoids TLE ✅ Time & space complexity explained clearly ✅ Edge cases and common mistakes By the end of this video, you’ll not only be able to solve this problem confidently but also build strong intuition for heap + greedy patterns, which are very common in coding interviews. 🧠 Concepts Covered Greedy Algorithms Max Heap / Priority Queue Reverse Simulation Math Insight (Modulo Optimization) Time Complexity Analysis If this helped you understand the problem better, don’t forget to 👍 like and subscribe for more deep dives into DSA and system design concepts 🚀 Hashtags: #leetcode1354 #constructtargetarray #leetcodehard #greedyalgorithm #heapdatastructure #priorityqueue #dsa #datastructuresandalgorithms #codinginterview #leetcodeexplanation #algorithms #softwareengineering #interviewprep #codingpatterns #programming #problemSolving #competitiveprogramming #techinterview #dsaindia #learncoding Your Queries: IPO leetcode IPO problem explained leetcode IPO solution IPO leetcode hard greedy algorithm leetcode heap leetcode priority queue interview questions leetcode greedy problems coding interview preparation DSA greedy problems IPO max heap solution leetcode walkthrough FAANG interview questions data structures and algorithms leetcode solutions explained coding tutorials placement preparation CHAPTERS 00:00 - Introduction & Recap 00:46 - LeetCode 1354 - Construct Target Array With Multiple Sums - Approach 1 - Theory 34:34 - LeetCode 1354 - Construct Target Array With Multiple Sums - Approach 1 - Code 42:44 - LeetCode 1354 - Construct Target Array With Multiple Sums - Approach 2 - Theory 01:00:05 - LeetCode 1354 - Construct Target Array With Multiple Sums - Approach 2 - Code 01:09:05 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/kgOBkLcfu4U https://www.techtube.co.in/tutorials/day-5190-1792-maximum-average-pass-ratio-brute-force-to-greedy-heap-full-intuition-6 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/aSCb6ToB90k/maxresdefault.jpg Day 51/90 |⚡1792. Maximum Average Pass Ratio 🔥 Brute Force to Greedy Heap (Full Intuition)🔥 #6 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/51_Day 📚 Maximum Average Pass Ratio — Brute Force vs Heap (Greedy) | Step-by-Step Intuition In this video, we break down the Maximum Average Pass Ratio problem in a clear and intuitive way. 🚀 We start with the brute force approach to build a strong foundation and understand the core idea behind distributing extra students. Then we move to the optimized greedy solution using a max heap, where we always pick the class that gives the maximum marginal gain in pass ratio. If you’ve ever struggled to understand why heaps work here or how to compute the gain formula, this video will make it crystal clear with examples and dry runs. 🧠 What you’ll learn ✔️ Problem intuition and real-world interpretation ✔️ Brute force approach and why it’s inefficient ✔️ Deriving the gain (delta) formula ✔️ Greedy strategy using a max heap ✔️ Step-by-step dry run ✔️ Time and space complexity analysis 🎯 Who is this video for • Students preparing for coding interviews • Anyone learning greedy + heap patterns • LeetCode practice (Greedy / Priority Queue) • DSA beginners to intermediate learners If you found this helpful, don’t forget to 👍 Like, 💬 Comment, and 🔔 Subscribe for more deep-dive DSA explanations! Hashtags: #maximumaveragepassratio #leetcode #dsa #greedyalgorithm #priorityqueue #heap #codinginterview #datastructures #algorithms #leetcodeexplanation #dsapreparation #interviewpreparation #codingpatterns #heaps #greedy #softwareengineering #codingpractice #placements #learncoding #problemSolving Your Queries: maximum average pass ratio maximum average pass ratio leetcode leetcode maximum average pass ratio greedy heap problem priority queue greedy heap greedy algorithm leetcode greedy problems dsa heap problems coding interview greedy pass ratio problem explanation brute force vs optimized priority queue tutorial heap data structure algorithms interview prep dsa preparation software engineering interviews coding patterns heap CHAPTERS 00:00 - Introduction & Recap 00:55 - LeetCode 1792 - Maximum Average Pass Ratio - Approach 1 - Theory 27:52 - LeetCode 1792 - Maximum Average Pass Ratio - Approach 1 - Code 41:29 - LeetCode 1792 - Maximum Average Pass Ratio - Approach 2 - Theory 53:16 - LeetCode 1792 - Maximum Average Pass Ratio - Approach 2 - Code 01:08:05 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/aSCb6ToB90k https://www.techtube.co.in/tutorials/day-5290-k-way-merge-pattern-theory-intuition-templates-part-1-dsa-pattern-7-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/YPkjZfxl5w4/maxresdefault.jpg Day 52/90 |⚡K-Way Merge Pattern (Theory + Intuition + Templates) - Part-1| DSA Pattern #7 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/52_Day If you struggle with problems that involve merging multiple sorted lists, then understanding the K-Way Merge pattern is a game-changer 🚀 In this video, we break down the theory behind the K-Way Merge pattern — one of the most important patterns for coding interviews and DSA mastery. You’ll learn when to use it, why it works, and how it leverages heaps to efficiently process multiple sorted streams. We start with the intuition, build the mental model step by step, and then connect it to common interview problems so you can recognize the pattern instantly. Whether you’re preparing for FAANG-style interviews or strengthening your DSA foundations, this video will help you think in patterns instead of memorizing solutions. 👉 What you’ll learn in this video: • What the K-Way Merge pattern is • When to apply it • How min heaps power the approach • Time & space complexity intuition • Typical problem scenarios where it appears If you found this helpful, don’t forget to 👍 Like, 💬 Comment, and 🔔 Subscribe for more deep-dive DSA pattern explanations! Hashtags: #kwaymerge #dsapatterns #datastructures #algorithms #codinginterview #interviewpreparation #heap #priorityqueue #mergeksortedlists #dsa #learncoding #faangpreparation #programming #computerscience #codingpatterns #softwareengineering #leetcode #codingtips #technicalinterview #codingeducation Your Queries: k way merge pattern k way merge merge k sorted lists dsa patterns coding interview patterns heap data structure priority queue tutorial algorithms tutorial data structures and algorithms interview preparation dsa faang coding interview leetcode patterns programming tutorials computer science concepts dsa for beginners advanced dsa coding patterns explained technical interview prep software engineering interviews CHAPTERS 00:00 - Introduction & Recap 00:32 - K-Way Merge Pattern - Theory 04:52 - Why do we need it - Theory 16:58 - Approach 1 - Using a MinHeap - Theory 26:41 - Time complexity of Approach 1 - Theory 28:32 - Template of this approach - Theory 35:53 - When does this pattern apply - Theory 39:56 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/YPkjZfxl5w4 https://www.techtube.co.in/tutorials/day-5390-master-k-way-merge-using-divide-conquer-pairwise-merge-deep-dive-dsa-pattern-7 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/tMuCAweP1DI/maxresdefault.jpg Day 53/90 |⚡🚀 Master K-Way Merge Using Divide & Conquer | Pairwise Merge Deep Dive | DSA Pattern #7 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/53_Day In this video, we break down the Pairwise (Divide & Conquer) approach to solving the K-Way Merge pattern — one of the most important patterns for coding interviews. Instead of using a min heap, we merge sorted lists two at a time, just like the merge step in Merge Sort. By repeatedly grouping lists into pairs and merging them level by level, we efficiently reduce K sorted lists into one final sorted list. This approach gives us a powerful intuition behind why the time complexity becomes: 👉 O(N log K) where: N = total number of elements K = number of sorted lists 🧠 What You’ll Learn in This Video: What the K-Way Merge pattern is Why pairwise merging works Step-by-step dry run with example Visual tree intuition (like merge sort) Why the complexity is O(N log K) Difference between Min Heap vs Pairwise approach When to use this method in interviews 🔥 Problems This Pattern Solves: Merge K Sorted Arrays Merge K Sorted Linked Lists Kth Smallest Element in Sorted Lists Median of K Sorted Arrays Log stream merging Multi-source data aggregation 💡 Real-World Applications: Merging server log files Financial transaction streams Healthcare record timelines Distributed data processing If you're preparing for: FAANG interviews Product-based companies System design foundations DSA pattern mastery This pattern is essential. 📌 This is part of our DSA Patterns Series where we deeply understand patterns — not just memorize problems. If you found this helpful: 👍 Like the video 💬 Comment your doubts 🔔 Subscribe for more DSA pattern breakdowns Hashtags: #KWayMerge #PairwiseMerge #DSAPatterns #MergeKSortedLists #DivideAndConquer #HeapVsMerge #CodingInterviewPrep #DataStructuresAndAlgorithms #DSAForBeginners #AlgorithmPatterns #MergeSortConcept #KthSmallestElement #PriorityQueue #MinHeap #FAANGPreparation #TechInterviews #InterviewReady #LearnDSA #CompetitiveProgramming #ProblemSolving #JavaDSA #CppDSA #PythonDSA #DSACourse #CTOBhaiya Your Queries: k way merge pattern pairwise merge approach merge k sorted lists merge k sorted arrays divide and conquer merge k way merge without heap heap vs pairwise merge dsa patterns explained data structures and algorithms coding interview preparation faang dsa questions merge sort concept k way merge time complexity o n log k explanation kth smallest in sorted lists priority queue vs merge competitive programming dsa java dsa tutorial python dsa tutorial interview ready algorithms CHAPTERS 00:00 - Introduction & Recap 02:15 - Approach 2 - Using Pairwise Merge (Divide & Conquer) - Theory 07:45 - Time Complexity of this Approach - Theory 10:47 - Template of this approach - Theory 16:07 - Dryrun of the example - Theory 19:00 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/tMuCAweP1DI https://www.techtube.co.in/tutorials/day-5490-from-simple-merge-to-k-sorted-lists-master-the-k-way-merge-pattern-for-interviews 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/OcZ47aj9jAU/maxresdefault.jpg Day 54/90 |⚡🚀 From Simple Merge to K Sorted Lists 🚀 Master the K-Way Merge Pattern for Interviews Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/54_Day In this video, we break down one of the most important algorithmic patterns for coding interviews — merging sorted data structures. If you’re preparing for DSA interviews or want to strengthen your problem-solving skills, this is a must-watch. We start with the fundamentals and gradually move to advanced concepts so you can clearly understand both the intuition and implementation. 📌 What you’ll learn in this video: • How to solve Merge Sorted Array step by step • How to merge two sorted linked lists efficiently • Understanding the merge pattern and when to use it • Solving Find the Mth Smallest Element in K Sorted Lists using: ✅ Brute Force Approach (BFA) ✅ Pairwise Merge Approach ✅ Min Heap / Priority Queue Optimized Approach • Time and space complexity comparison of all approaches By the end of this video, you’ll not only know how these problems work but also how to choose the right approach in interviews. 💡 This topic is extremely important for coding interviews at top tech companies and forms the foundation for many advanced problems like K-way merge, external sorting, and streaming algorithms. 👍 If you found this helpful, don’t forget to like, share, and subscribe for more DSA and system design content! Hashtags: #MergeSortedArray #MergeTwoSortedLists #KWayMerge #CodingInterviewPrep #DSA #LeetCode #Algorithms #DataStructures #Heap #PriorityQueue #CodingPatterns #InterviewPreparation #Programming #SoftwareEngineering #DSAPatterns #LeetCodeSolutions #CodingTutorial #TechInterview #LearnDSA #CompetitiveProgramming Your Queries: merge sorted array leetcode merge two sorted lists kth smallest in sorted lists mth smallest element k sorted lists k way merge pattern heap priority queue dsa leetcode merge pattern coding interview merge problems data structures algorithms tutorial leetcode solutions explained dsa for interviews k sorted lists heap approach pairwise merge algorithm brute force merge approach coding interview preparation learn dsa patterns CHAPTERS 00:00 - Introduction & Recap 01:45 - LeetCode 88 - Merge Sorted Array - Theory 05:57 - LeetCode 88 - Merge Sorted Array - Code 14:28 - LeetCode 21 - Merge Two Sorted Lists - Theory 19:56 - LeetCode 21 - Merge Two Sorted Lists - Code 26:00 - Problem - mth Smallest elelment in k Sorted Lists - Theory 36:40 - Problem - mth Smallest elelment in k Sorted Lists - Code 01:06:48 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/OcZ47aj9jAU https://www.techtube.co.in/tutorials/day-5590-kth-smallest-element-in-sorted-matrix-explained-k-way-merge-pattern-made-easy 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/7JEv1r5lZEQ/maxresdefault.jpg Day 55/90 |⚡🚀 Kth Smallest Element in Sorted Matrix Explained 🔥 | K-Way Merge Pattern Made Easy Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/55_Day In this video, we break down the classic Kth Smallest Element in a Sorted Matrix problem and solve it step-by-step using the Min Heap (Priority Queue) approach. 🚀 If you’ve ever struggled with problems that involve sorted structures + heaps, this explanation will help you build strong intuition and understand why the heap approach works — not just how to code it. 🔍 What you’ll learn in this video: • Problem intuition with a visual example • Why brute force and sorting aren’t optimal • How the Min Heap helps efficiently track the next smallest element • Step-by-step dry run of the algorithm • Time and space complexity analysis • Common pitfalls and interview tips This problem is a must-know pattern for coding interviews and helps you master Heap + Matrix traversal patterns that show up frequently in top tech interviews. 💡 Who is this video for? • Students preparing for coding interviews • Anyone learning Heap / Priority Queue concepts • DSA learners following pattern-based preparation If you found this helpful, don’t forget to 👍 like, 💬 comment your doubts, and 🔔 subscribe for more DSA pattern breakdowns! #DSA #Heaps #CodingInterview #LeetCode #Algorithms #PriorityQueue #TechInterview #ProblemSolving Hashtags: #KthSmallestElement #SortedMatrix #MinHeap #PriorityQueue #DSA #DataStructures #Algorithms #CodingInterview #LeetCode #HeapProblems #MatrixProblems #InterviewPreparation #DSAPatterns #ProblemSolving #TechInterview #CompetitiveProgramming #Programming #CodingPractice #SoftwareEngineering #LearnDSA Your Queries: kth smallest element in sorted matrix kth smallest matrix heap min heap matrix problem priority queue matrix leetcode kth smallest matrix sorted matrix algorithm heap interview questions dsa heap problems matrix dsa pattern coding interview heap kth smallest algorithm heap tutorial data structures and algorithms competitive programming matrix programming interview preparation CHAPTERS 00:00 - Introduction & Recap 00:53 - LeetCode Kth Smallest Element in a Sorted Matrix - Theory 11:10 - LeetCode Kth Smallest Element in a Sorted Matrix - Code 18:54 - LeetCode Kth Smallest Element in a Sorted Matrix - Edge Cases - Theory 25:35 -LeetCode Kth Smallest Element in a Sorted Matrix - Edge Cases (Best Case) - Code 26:20 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/7JEv1r5lZEQ https://www.techtube.co.in/tutorials/day-5690-merge-k-sorted-lists-explained-brute-force-vs-min-heap-vs-pairwise-k-way-merge 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/pJtGHZmTGmA/maxresdefault.jpg Day 56/90 |⚡🚀 Merge K Sorted Lists Explained 🔥 Brute Force vs Min Heap vs Pairwise 🔥 | K-Way Merge Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/56_Day 🚀 Merge K Sorted Lists | Brute Force vs Min Heap vs Pairwise Merge (LeetCode Explained) In this video, we break down the classic Merge K Sorted Lists LeetCode problem step-by-step and explore three different approaches to solve it efficiently. You’ll learn: ✅ Problem intuition and real interview perspective ✅ Brute Force approach and why it’s not optimal ✅ Min Heap (Priority Queue) solution with full walkthrough ✅ Pairwise merging technique inspired by merge sort ✅ Time & Space complexity comparison ✅ When to use which approach in interviews This problem is a must-know pattern for mastering K-way merge, heaps, and divide-and-conquer — concepts that frequently appear in coding interviews at top tech companies. Whether you’re preparing for DSA interviews, learning heap patterns, or strengthening your problem-solving skills, this video will give you a clear and practical understanding. 📌 Topics Covered • K-way Merge Pattern • Priority Queue / Min Heap • Divide and Conquer • Linked List Manipulation • Complexity Analysis 💡 If you found this helpful, don’t forget to like, share, and subscribe for more deep-dive DSA explanations! Hashtags: #MergeKSortedLists #LeetCode #DSA #CodingInterview #DataStructures #Algorithms #Heap #MinHeap #PriorityQueue #KWayMerge #DivideAndConquer #LinkedList #LeetCodeHard #Programming #SoftwareEngineering #CodingPreparation #TechInterview #InterviewPrep #DSAPatterns #LearnToCode Your Queries: merge k sorted lists merge k sorted lists leetcode merge k sorted lists explanation leetcode merge k lists k way merge k way merge pattern min heap merge k lists priority queue linked list pairwise merge approach brute force merge k lists linked list problems heap interview questions leetcode hard linked list dsa interview prep coding interview algorithms divide and conquer linked list data structures and algorithms CHAPTERS 00:00 - Introduction & Recap 02:25 - LeetCode - 23 - Merge k Sorted Lists - Approach 1 - Theory 07:00 - LeetCode - 23 - Merge k Sorted Lists - Approach 1 - Code 12:21 - LeetCode - 23 - Merge k Sorted Lists - Approach 2 - Theory 18:18 - LeetCode - 23 - Merge k Sorted Lists - Approach 2 - Code 28:15 - LeetCode - 23 - Merge k Sorted Lists - Approach 3 - Theory 31:33 - LeetCode - 23 - Merge k Sorted Lists - Approach 3 - Code 41:33 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/pJtGHZmTGmA https://www.techtube.co.in/tutorials/day-5790-find-k-pairs-with-smallest-sums-leetcode-373-heap-pattern-explained-k-way-merge 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/gvVE5D-n_FU/maxresdefault.jpg Day 57/90 |⚡🚀 Find K Pairs with Smallest Sums 🔥 LeetCode 373 Heap Pattern Explained 🔥 | K-Way Merge Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/57_Day In this video, we break down the popular LeetCode problem 373. Find K Pairs with Smallest Sums step by step and understand how to approach it efficiently. We start with the Brute Force Approach (BFA) to build intuition by generating all possible pairs from the two sorted arrays and selecting the smallest sums. While simple, this approach quickly becomes inefficient for large inputs. Next, we move to the Optimized Min Heap Approach, which leverages the sorted property of the arrays to efficiently extract the k smallest pair sums without generating all combinations. You’ll learn how the heap helps us always expand the next smallest candidate pair and why this drastically reduces the time complexity. By the end of the video, you will clearly understand: • How to think about pair generation problems • Why brute force becomes inefficient • How min heap optimizes k-smallest problems • The time and space complexity of both approaches • The intuition behind pushing next candidates in the heap This problem is part of the K-Way Merge / Heap pattern, which frequently appears in coding interviews at top tech companies. If you're preparing for coding interviews, DSA rounds, or LeetCode practice, mastering this pattern will help you solve many similar problems efficiently. Problem Link: https://leetcode.com/problems/find-k-pairs-with-smallest-sums/ 📌 Topics Covered Brute Force Approach (BFA) Min Heap Optimization K Smallest Pair Sums Pattern Heap Based Search Strategy Time & Space Complexity Analysis 💡 Recommended For Software Engineering Interview Prep DSA & Algorithms Practice LeetCode Pattern Learning Heap / Priority Queue Concepts Subscribe for more DSA patterns, system design, and interview preparation content 🚀 Hashtags: #leetcode #leetcode373 #findkpairswithsmallestsums #datastructuresandalgorithms #dsa #codinginterview #leetcodeproblems #heap #minheap #priorityqueue #kwaymerge #codingpatterns #algorithms #programming #softwareengineering #codingpractice #interviewpreparation #codingtutorial #competitiveprogramming #learncoding Your Queries: leetcode 373 find k pairs with smallest sums leetcode 373 solution leetcode 373 explanation k pairs with smallest sums k smallest pairs problem min heap algorithm heap interview problems priority queue dsa k way merge pattern heap coding interview question dsa heap problems leetcode heap problems coding interview preparation data structures and algorithms dsa tutorial algorithm tutorial competitive programming heap software engineering interview prep CHAPTERS 00:00 - Introduction & Recap 00:40 - LeetCode - 373 - Find K Pairs with Smallest Sums - Approach 1 - Theory 06:44 - LeetCode - 373 - Find K Pairs with Smallest Sums - Approach 1 - Code 14:28 - LeetCode - 373 - Find K Pairs with Smallest Sums - Approach 2 - Theory 33:39 - LeetCode - 373 - Find K Pairs with Smallest Sums - Approach 2 - Code 51:52 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/gvVE5D-n_FU https://www.techtube.co.in/tutorials/day-5890-kth-smallest-sum-in-matrix-lc-1439-from-brute-force-to-min-heap-k-way-merge 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ukkQKz1N-Nk/maxresdefault.jpg Day 58/90 |⚡🚀 🔥 Kth Smallest Sum in Matrix (LC 1439) | From Brute Force to Min Heap 🔥 | K-Way Merge Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/58_Day In this video, we break down the popular LeetCode problem 373. Find K Pairs with Smallest Sums step by step and understand how to approach it efficiently. We start with the Brute Force Approach (BFA) to build intuition by generating all possible pairs from the two sorted arrays and selecting the smallest sums. While simple, this approach quickly becomes inefficient for large inputs. Next, we move to the Optimized Min Heap Approach, which leverages the sorted property of the arrays to efficiently extract the k smallest pair sums without generating all combinations. You’ll learn how the heap helps us always expand the next smallest candidate pair and why this drastically reduces the time complexity. By the end of the video, you will clearly understand: • How to think about pair generation problems • Why brute force becomes inefficient • How min heap optimizes k-smallest problems • The time and space complexity of both approaches • The intuition behind pushing next candidates in the heap This problem is part of the K-Way Merge / Heap pattern, which frequently appears in coding interviews at top tech companies. If you're preparing for coding interviews, DSA rounds, or LeetCode practice, mastering this pattern will help you solve many similar problems efficiently. Problem Link: https://leetcode.com/problems/find-k-pairs-with-smallest-sums/ 📌 Topics Covered Brute Force Approach (BFA) Min Heap Optimization K Smallest Pair Sums Pattern Heap Based Search Strategy Time & Space Complexity Analysis 💡 Recommended For Software Engineering Interview Prep DSA & Algorithms Practice LeetCode Pattern Learning Heap / Priority Queue Concepts Subscribe for more DSA patterns, system design, and interview preparation content 🚀 Hashtags: #leetcode #leetcode373 #findkpairswithsmallestsums #datastructuresandalgorithms #dsa #codinginterview #leetcodeproblems #heap #minheap #priorityqueue #kwaymerge #codingpatterns #algorithms #programming #softwareengineering #codingpractice #interviewpreparation #codingtutorial #competitiveprogramming #learncoding Your Queries: leetcode 373 find k pairs with smallest sums leetcode 373 solution leetcode 373 explanation k pairs with smallest sums k smallest pairs problem min heap algorithm heap interview problems priority queue dsa k way merge pattern heap coding interview question dsa heap problems leetcode heap problems coding interview preparation data structures and algorithms dsa tutorial algorithm tutorial competitive programming heap software engineering interview prep CHAPTERS 00:00 - Introduction & Recap 01:31 - Day 57 - LeetCode - 373 - Problem Recap - Theory 10:48 - LeetCode - 1439 - Find the Kth Smallest Sum of a Matrix With Sorted Rows - Approach 1 - Theory 27:38 - LeetCode - 1439 - Find the Kth Smallest Sum of a Matrix With Sorted Rows - Approach 1 - Code 38:08 - LeetCode - 1439 - Find the Kth Smallest Sum of a Matrix With Sorted Rows - Approach 2 - Theory 47:20 - LeetCode - 1439 - Find the Kth Smallest Sum of a Matrix With Sorted Rows - Approach 2 - Code 01:19:35 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/ukkQKz1N-Nk https://www.techtube.co.in/tutorials/day-590-three-popular-interview-questions-of-two-pointer-pattern-babua-dsa-patterns-2025-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/jA74srakqvI/maxresdefault.jpg Day 5/90 🔥Three Popular Interview Questions of Two Pointer Pattern | Babua DSA Patterns 2025 #dsa Sheet Link: https://app.nextgen-cto.in/login JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/tree/main/5_Day Problems URLs: Strobogrammatic numbers: https://www.programiz.com/java-programming/online-compiler/ Lowest Common Ancestor of a Binary Tree III: https://neetcode.io/problems/lowest-common-ancestor-of-a-binary-tree-iii?list=neetcode250 https://leetcode.com/problems/sort-colors/description/ 2486. Append Characters to String to Make Subsequence: https://leetcode.com/problems/append-characters-to-string-to-make-subsequence/description/ Day 5/90 – Babua DSA Patterns Course 2025 | Two Pointer Pattern Deep Dive Welcome back to Day 5/90 of the Babua DSA Patterns Course 2025! In today’s session, we explore three powerful interview problems that beautifully use the Two Pointer Pattern (directly or indirectly with pointer-style traversal). These problems are regularly asked in FAANG, top product companies, and LeetCode Medium-level interviews. If you’re following the 90-day challenge, make sure you comment "Done" once you finish the video! 🧠 What You’ll Learn Today 🔹 1. Strobogrammatic Number (Easy) A classic problem based on symmetric digit pairs. Learn: Which digits remain valid after rotation How to check using two pointers Edge cases & clean intuition Perfect problem to develop the foundational mindset of the two-pointer technique. 🔹 2. 2486. Append Characters to String to Make Subsequence (Medium) Why greedy scanning works 🔹 3. Lowest Common Ancestor of a Binary Tree III (Medium) A variation where each node has a parent pointer. Learn: How pointer traversal is used to reach a common ancestor Smart trick: convert to "intersection of linked lists" 🎯 Why Watch This Video? Covers theory, intuition, patterns, and code-level thinking Explains why the solution works, not just how Helps you identify when to apply the two-pointer pattern Builds real interview confidence 🔗 Join the Challenge Playlist: Babua DSA Patterns 2025 Instructor: Anuj Kumar (CTO Bhaiya) Stay consistent. Trust the process. Day 5 complete -- On to Day 6! 🚀🔥 Hashtags: #TwoPointerPattern #BabuaDSAPatterns #CTOBhaiya #DSAin90Days #DSAPatterns2025 #StrobogrammaticNumber #AppendCharactersToString #LC2486 #LowestCommonAncestor #BinaryTreeLCA #LCAIII #LeetCodeSolutions #CodingInterviewPrep #FAANGInterviewPrep #DataStructuresAndAlgorithms #TwoPointers #LeetCodeMedium #Striver #TakeUForward #ApnaCollege Your Queries: two pointer pattern sort colors leetcode sort two colors dutch national flag algorithm remove nth node from end of list leetcode medium problems dsa patterns 2025 babua dsa patterns cto bhaiya anuj kumar dsa coding interview preparation striver tUf take u forward apna college dsa love babbar dsa linked list two pointers array two pointer problems faang interview prep dsa in 90 days nextgen cto CHAPTERS 00:00 Introduction 05:33 Strobogrammatic Number - Theory 10:40 Strobogrammatic Number - Code 21:02 2486. Append Characters to String to Make Subsequence - Theory 29:00 2486. Append Characters to String to Make Subsequence - Code 33:30 1650. Lowest Common Ancestor of a Binary Tree III - Theory 36:01 1650. Lowest Common Ancestor of a Binary Tree III - Approach 1 (Theory) 41:10 1650. Lowest Common Ancestor of a Binary Tree III - Approach 1 (Code) 45:26 1650. Lowest Common Ancestor of a Binary Tree III - Approach 2 (Theory) 53:47 1650. Lowest Common Ancestor of a Binary Tree III - Approach 2 (Code) 59:20 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/jA74srakqvI https://www.techtube.co.in/tutorials/day-5990-kth-smallest-prime-fraction-lc-786-brute-force-vs-min-heap-k-way-merge 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/LHMpY2D52E0/maxresdefault.jpg Day 59/90 |⚡🚀 🔥 Kth Smallest Prime Fraction (LC 786) 🚀 Brute Force vs Min Heap 🔥 | K-Way Merge Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/59_Day 🚀 Kth Smallest Prime Fraction | Brute Force vs Min Heap (Optimal Approach Explained) In this video, we break down the Kth Smallest Prime Fraction problem step-by-step and help you truly understand the intuition behind it. If you're preparing for coding interviews or grinding LeetCode, this problem is a must-know! We start with the Brute Force approach, where we generate all possible fractions and sort them — simple but inefficient. Then, we move to the Min Heap (Priority Queue) approach, which optimizes the process and helps you solve the problem efficiently. 💡 You’ll learn: How to generate all possible fractions from a sorted prime array Why brute force works but fails at scale The intuition behind using a min heap How to efficiently track the next smallest fraction Time & space complexity analysis Clean and easy-to-understand code walkthrough 🔥 This video is perfect for: DSA beginners to advanced learners Coding interview preparation (FAANG & product companies) Understanding heap-based optimization patterns 📌 Problem Link: LeetCode – Kth Smallest Prime Fraction 💬 If you found this helpful, don’t forget to like, comment, and subscribe for more DSA and system design content! Hashtags: #KthSmallestPrimeFraction #LeetCode #DSA #DataStructures #Algorithms #Heap #MinHeap #PriorityQueue #CodingInterview #InterviewPreparation #FAANG #SoftwareEngineering #Java #Python #CompetitiveProgramming #LeetCodeSolutions #DSAPreparation #ProblemSolving #CodingPractice #TechInterview Your Queries: kth smallest prime fraction kth smallest fraction leetcode leetcode kth smallest prime fraction solution kth smallest prime fraction explanation brute force approach kth smallest fraction min heap kth smallest fraction priority queue kth smallest fraction heap based problems dsa dsa heap problems leetcode heap problems coding interview heap questions faang interview preparation dsa data structures and algorithms heap kth smallest problems dsa matrix and heap problems leetcode medium problems solutions java dsa heap solution python heap solution leetcode competitive programming heap questions optimize brute force using heap CHAPTERS 00:00 - Introduction & Recap 00:40 - Day 59 - LeetCode - 786 - Question Understanding 01:50 - LeetCode - 786 - K-th Smallest Prime Fraction - Approach 1 - Theory 08:38 - LeetCode - 786 - K-th Smallest Prime Fraction - Approach 1 - Code 16:45 - LeetCode - 786 - K-th Smallest Prime Fraction - Approach 2 - Theory 33:17 - LeetCode - 786 - K-th Smallest Prime Fraction - Approach 2 - Code 53:35 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/LHMpY2D52E0 https://www.techtube.co.in/tutorials/day-6090-313-super-ugly-number-made-easy-brute-force-to-min-heap-k-way-merge 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/i2GaZh8vjqU/maxresdefault.jpg Day 60/90 |⚡🚀 🔥 313. Super Ugly Number Made Easy 🚀 | Brute Force to Min Heap! 🔥 | K-Way Merge Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/60_Day 🚀 Master the Super Ugly Number Problem (LeetCode) with Brute Force & Min Heap Optimization! In this video, we break down the Super Ugly Number problem step by step — starting from a simple brute force approach and then optimizing it using a powerful min heap (priority queue) technique. If you’ve ever struggled with k-way merge patterns, heap-based problems, or duplicate handling in sequences, this video will give you crystal-clear intuition. 🧠 What you’ll learn: What is a Super Ugly Number? How the brute force approach works (and why it’s inefficient) Transitioning from brute force → optimized thinking Min Heap approach explained with intuition How to handle duplicates correctly Time & space complexity breakdown Clean Java implementation 💡 Key Concepts Covered: K-way merge pattern Priority Queue (Min Heap) Pointer-based DP vs Heap approach Avoiding duplicate computations Efficient sequence generation 🎯 Who is this for? DSA beginners & intermediate learners Students preparing for coding interviews Anyone struggling with heap problems on LeetCode 🔥 By the end of this video, you’ll not only solve this problem but also recognize patterns that apply to many advanced heap problems. 📌 Problem Link: LeetCode - Super Ugly Number 💬 If this helped you, don’t forget to: 👍 Like 💬 Comment your doubts 🔔 Subscribe for more DSA + System Design content Hashtags: #SuperUglyNumber #LeetCode #DSA #DataStructures #Algorithms #CodingInterview #InterviewPrep #Heap #PriorityQueue #KWayMerge #DynamicProgramming #Java #Coding #Programming #SoftwareEngineering #TechInterview #ProblemSolving #CompetitiveProgramming #DSAInJava #LearnToCode Your Queries: super ugly number super ugly number leetcode nth super ugly number super ugly number solution super ugly number java super ugly number explanation leetcode super ugly number heap super ugly number priority queue super ugly number brute force k way merge pattern heap problems dsa priority queue problems leetcode heap problems dsa heap tutorial data structures and algorithms coding interview preparation dsa java algorithms tutorial competitive programming dsa leetcode solutions java CHAPTERS 00:00 - Introduction & Recap 00:52 - Day 57 - LeetCode - 373 - Problem Recap - Theory 03:06 - LeetCode - 313 - Super Ugly Number - Approach 1 - Theory 27:54 - LeetCode - 313 - Super Ugly Number - Approach 1 - Code 41:38 - LeetCode - 313 - Super Ugly Number - Approach 2 - Theory 54:50 - LeetCode - 313 - Super Ugly Number - Approach 2 - Code 01:09:50 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/i2GaZh8vjqU https://www.techtube.co.in/tutorials/day-6190-top-k-elements-pattern-theory-intuition-templates-dsa-pattern-8-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/rNzUt0px8Gg/maxresdefault.jpg Day 61/90 |⚡Top K Elements Pattern (Theory + Intuition + Templates)| DSA Pattern #8 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/61_Day 🎯 Top K Elements Pattern Explained | Heap Intuition + Theory | DSA Patterns In this video, we break down one of the most important and frequently asked patterns in coding interviews — the Top K Elements Pattern. Instead of sorting the entire dataset, we learn how to efficiently extract the K most important elements (largest, smallest, most frequent, etc.) using heaps, reducing time complexity from O(N log N) to O(N log K). This pattern is extremely useful when dealing with large datasets where full sorting is unnecessary. 🧠 What You’ll Learn: What the Top K Elements pattern is Why sorting is inefficient for these problems How heaps (min heap / max heap) help optimize the solution When to use min heap vs max heap Step-by-step intuition with examples Time and space complexity breakdown How to identify Top K problems in interviews 🔥 Problems This Pattern Covers: Top K Largest / Smallest Elements Kth Largest / Smallest Element K Most Frequent Elements K Closest Points to Origin Sort Characters by Frequency Connect Ropes with Minimum Cost 💡 Real-World Applications: Ride-sharing apps → finding nearest drivers Social media → trending topics Finance → top-performing stocks Data analytics → filtering top insights 🚀 Why This Pattern Matters: If you’re preparing for: FAANG / product-based companies Coding interviews Competitive programming Then mastering this pattern will help you solve a wide range of problems efficiently. 📌 This video is part of our DSA Patterns Series, where we focus on understanding patterns deeply instead of memorizing solutions. 👍 Like | 💬 Comment | 🔔 Subscribe for more DSA pattern breakdowns Hashtags: #TopKElements #DSAPatterns #HeapPattern #PriorityQueue #MinHeap #MaxHeap #KthLargest #KthSmallest #MostFrequentElements #CodingInterviewPrep #DataStructuresAndAlgorithms #DSAForBeginners #AlgorithmPatterns #FAANGPreparation #TechInterviews #InterviewReady #LearnDSA #CompetitiveProgramming #ProblemSolving #JavaDSA #CppDSA #PythonDSA #DSACourse #CTOBhaiya Your Queries: top k elements pattern top k problems dsa kth largest element kth smallest element k most frequent elements heap pattern dsa min heap max heap explained priority queue dsa coding interview preparation faang dsa questions data structures and algorithms dsa patterns explained algorithm patterns top k interview questions k closest points problem optimize sorting using heap java dsa tutorial python dsa tutorial competitive programming dsa CHAPTERS 00:00 - Introduction & Recap 02:26 - Top K elements pattern - Theory 05:16 - Naive Approach (Sort) - Theory 06:35 - Better Approach using Heap - Theory 14:15 - Which Heap to use - Theory 16:36 - Time & Space Complexity of heap approach - Theory 19:05 - When to use this pattern - Theory 19:40 - Classic Problems - Theory 25:24 - Real world examples - Theory 27:47 - Key Insights - Theory 28:02 - Heap Templates - Theory 33:45 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/rNzUt0px8Gg https://www.techtube.co.in/tutorials/day-6290-master-top-k-problems-in-one-shot-top-k-elements-pattern-explained-8-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ceIAKaKJX5k/maxresdefault.jpg Day 62/90 |⚡🚀 Master Top K Problems in One Shot | Top K Elements Pattern Explained 🔥 #8 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/62_Day 🚀 Master Top K Problems in One Shot | Heap (Priority Queue) Pattern Explained In this video, we dive deep into one of the most important DSA patterns for coding interviews — the Top K Elements pattern using Heaps (Priority Queues). We’ll cover 3 highly asked LeetCode problems step by step: 🔹 Kth Largest Element in an Array Learn how to efficiently find the kth largest number using a min heap instead of sorting the entire array. 🔹 Kth Largest Element in a Stream Understand how to maintain the kth largest element dynamically as new elements arrive — a must-know concept for real-time systems. 🔹 K Most Frequent Elements Master how to combine hash maps + heaps to extract the most frequent elements efficiently. 💡 What you’ll learn in this video: • Intuition behind using min heap for kth largest problems • Why sorting is not optimal • How to maintain a heap of size k • Handling streaming data efficiently • Frequency counting + heap optimization • Time & space complexity breakdown • Pattern recognition for interview problems 🎯 Why this matters: These problems are frequently asked in top tech interviews (Amazon, Google, Microsoft) and form the foundation for solving many advanced questions. 🧠 Pattern takeaway: 👉 If you need top k largest/smallest elements → Think Heap 👉 Use Min Heap for K largest 👉 Use Max Heap for K smallest / frequency problems CHAPTERS 00:00 - Introduction & Recap 01:30 - LeetCode 215 - Approach 1 - Theory 04:10 - LeetCode 215 - Approach 1 - Code 12:20 - LeetCode 215 - Approach 2 - Theory 04:10 - LeetCode 215 - Approach 2 - Code 18:53 - LeetCode 703 - Approach 1 - Theory 26:10 - LeetCode 703 - Approach 1 - Code 35:16 - LeetCode 703 - Approach 2 - Code 01:02:44 - LeetCode 347 - Approach 1 - Theory 01:07:47 - LeetCode 347 - Approach 1 - Code 01:14:54 - LeetCode 347 - Approach 2 - Theory 01:19:46 - LeetCode 347 - Approach 2 - Code 01:26:50 - Conclusion 💻 Practice Links: • Kth Largest Element in an Array • Kth Largest Element in a Stream • K Most Frequent Elements 🔥 If you're preparing for coding interviews or placements, this video will help you build strong intuition + solve faster under pressure. 👍 Like, Share & Subscribe for more DSA patterns and interview prep content! Hashtags: #topkproblems #kthlargestelement #kmostfrequentelements #kthlargeststream #heap #minheap #maxheap #priorityqueue #dsapatterns #leetcode #leetcodeproblems #codinginterview #interviewprep #faangprep #datastructures #algorithms #dsa #learncoding #programming #codingtips #softwareengineering #placements #techinterview #javaprogramming #pythonprogramming Your Queries: top k elements kth largest element in array kth largest element in stream k most frequent elements heap problems min heap max heap priority queue dsa patterns leetcode top k coding interview prep faang interview questions data structures and algorithms heap pattern explained top k frequent elements leetcode kth largest number streaming data structures learn heaps algorithms tutorial java dsa python dsa #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/ceIAKaKJX5k https://www.techtube.co.in/tutorials/day-6390-master-two-powerful-top-k-problems-brute-force-optimized-explained-8-heap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/6CeadrkGOMM/maxresdefault.jpg Day 63/90 |⚡🚀 🚀 Master Two Powerful Top K Problems | Brute Force → Optimized Explained 🔥 #8 #heap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/63_Day : 🚀 Master Two Powerful Heap Problems | Brute Force → Optimized Approach Explained In this video, we break down two important and frequently asked coding interview problems: 1️⃣ K Closest Points to Origin 2️⃣ Find Subsequence with Largest Sum We start from the brute force approach to build strong intuition and then move step-by-step towards the optimized heap-based solutions that improve efficiency significantly. 💡 What you’ll learn in this video: Intuition behind solving both problems How brute force works (and why it’s inefficient) Transitioning to an optimized approach Using Min Heap / Max Heap (Priority Queue) effectively Time and space complexity analysis Pattern recognition for similar interview questions 🔥 Why this video is important: These problems are great examples of the Top K Elements pattern, one of the most common patterns in coding interviews (especially for FAANG-level companies). 📌 Topics Covered: Distance calculation using coordinates Heap fundamentals (Min Heap vs Max Heap) Maintaining Top K elements efficiently Subsequence selection strategies Optimization techniques 🎯 Who should watch this? Beginners learning DSA Students preparing for coding interviews Anyone struggling with heap-based problems 💻 Practice Problems: K Closest Points to Origin (LeetCode) Maximum Subsequence Score / Largest Sum Subsequence variants 👍 If you found this helpful, don’t forget to: Like 👍 Share 🔁 Subscribe 🔔 for more DSA & System Design content Hashtags: #kclosestpointstoorigin #topkelements #heap #priorityqueue #minheap #maxheap #dsapatterns #codinginterview #leetcode #leetcodeproblems #algorithms #datastructures #interviewpreparation #faangprep #dsa #learncoding #programming #softwareengineering #competitiveprogramming #placements #codingtips #techvideos #computerscience #problemSolving Your Queries: k closest points to origin k closest points leetcode top k elements heap data structure priority queue min heap max heap dsa patterns subsequence with largest sum max subsequence problem heap interview questions coding interview preparation leetcode heap problems algorithms tutorial data structures faang interview prep programming tutorial competitive programming dsa for beginners CHAPTERS 00:00 - Introduction & Recap 00:46 - LeetCode 973 - Approach 1 - Theory 08:52 - LeetCode 973 - Approach 1 - Code 14:40 - LeetCode 973 - Approach 2 - Theory 23:42 - LeetCode 973 - Approach 2 - Code 32:30 - LeetCode 2099 - Approach 1 - Theory 41:45 - LeetCode 2099 - Approach 1 - Code 50:07 - LeetCode 2099 - Approach 2 - Theory 55:27 - LeetCode 2099 - Approach 2 - Code 01:03:57 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/6CeadrkGOMM https://www.techtube.co.in/tutorials/day-6490-reorganize-string-kth-largest-integer-master-top-k-elements-pattern-8-topk 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/UsKUzrHWfG0/maxresdefault.jpg Day 64/90 |⚡ 🔥 Reorganize String + Kth Largest Integer | Master Top K Elements Pattern 🚀🔥#8 #topk Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/64_Day : 🚀 Reorganize String + Kth Largest Integer | Heap Pattern Mastery (Step-by-Step) In this video, we dive deep into two important and tricky coding interview problems: 1️⃣ Reorganize String (LeetCode) 2️⃣ 1985. Find the Kth Largest Integer in the Array We start by understanding the core intuition behind each problem, explore the brute force thinking, and then move towards optimized heap-based solutions. 💡 What you’ll learn: How to rearrange characters to avoid adjacent duplicates Greedy + Heap approach for string problems Handling large numbers stored as strings Using Priority Queues (Max Heap / Min Heap) effectively Writing clean and optimal solutions for interviews Time & space complexity breakdown 🔥 Key Concepts Covered: Greedy algorithms Heap / Priority Queue pattern Frequency maps Custom sorting (for large integers as strings) Top K elements pattern 🎯 Why this video matters: These problems are commonly asked in coding interviews and help you build strong intuition for: Greedy + Heap combination problems Handling edge cases in string manipulation Working with large inputs efficiently 💻 Practice Problems: Reorganize String (LeetCode) Find the Kth Largest Integer in the Array 👍 If this helped you: Like 👍 Share 🔁 Subscribe 🔔 for more DSA, System Design & Interview Prep content Hashtags: #reorganizestring #kthlargestinteger #kthlargestelement #heap #priorityqueue #maxheap #minheap #greedyalgorithm #dsapatterns #leetcode #leetcodeproblems #codinginterview #interviewpreparation #faangprep #algorithms #datastructures #dsa #learncoding #programming #competitiveprogramming #codingtips #techvideos #computerscience #problemSolving Your Queries: reorganize string leetcode reorganize string heap solution kth largest integer in array leetcode 1985 solution heap interview questions priority queue problems greedy algorithm strings top k elements pattern max heap min heap dsa patterns heap coding interview preparation leetcode string problems algorithms tutorial data structures faang interview prep competitive programming CHAPTERS 00:00 - Introduction & Recap 00:46 - LeetCode 1985 - Approach 1 - Theory 10:00 - LeetCode 1985 - Approach 1 - Code 16:32 - LeetCode 1985 - Approach 2 - Theory 26:30 - LeetCode 1985 - Approach 2 - Code 32:15 - LeetCode 1985 - Approach 3 - Code 39:20 - LeetCode 767 - Approach 1 - Theory 01:02:00 - LeetCode 767 - Approach 1 - Code 01:20:20 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/UsKUzrHWfG0 https://www.techtube.co.in/tutorials/day-6590-maximal-score-third-max-in-one-shot-master-top-k-elements-pattern-8-topk 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/B9RBxkZ-5Fk/maxresdefault.jpg Day 65/90 |⚡🔥 Maximal Score + Third Max in One Shot! | Master Top K Elements Pattern 🚀🔥#8 #topk Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/65_Day Master two powerful interview problems in this video — Third Maximum Number and Find Subsequence of Length K With the Largest Sum (Leetcode 2099) — using both sorting and heap-based approaches. If you're preparing for coding interviews, this is exactly the kind of pattern-based thinking that separates average candidates from top performers. 🔥 What you'll learn: ✅ Third Maximum Number Brute force idea using sorting Optimized solution using min heap (priority queue) Handling duplicates efficiently Time & space complexity breakdown ✅ 2099. Find Subsequence of Length K With the Largest Sum Why brute force fails Intuition behind using a heap for top K selection Maintaining original order of subsequence Step-by-step dry run 💡 Why this video matters: Most people solve problems, but very few understand patterns. This video is part of the Babua DSA Patterns Course 2025, where: You learn 30 core patterns Each pattern has templates + 15–20 problems Designed to guarantee logic building 🚀 Babua DSA Patterns Course Highlights: 🧠 Pattern-based learning (not random questions) 🔁 Revision strategy (D+1, D+3, D+7, D+14) 📈 Proven by 2.5L+ learners 💯 Completely FREE on YouTube 🧩 Problems Covered: Third Maximum Number Leetcode 2099 – Find Subsequence of Length K With the Largest Sum 🎯 Who should watch? Beginners struggling with DSA Students preparing for placements Engineers aiming for FAANG-level interviews Anyone tired of forgetting problems after solving 📣 Call to Action: Comment "COURSE" to get the full Babua DSA Patterns Sheet + Revision Tracker 🚀 Hashtags: #reorganizestring #kthlargestinteger #kthlargestelement #heap #priorityqueue #maxheap #minheap #greedyalgorithm #dsapatterns #leetcode #leetcodeproblems #codinginterview #interviewpreparation #faangprep #algorithms #datastructures #dsa #learncoding #programming #competitiveprogramming #codingtips #techvideos #computerscience #problemSolving Your Queries: #dsapatterns #babuaDSA #topkelements #heap #priorityqueue #leetcode #leetcode2099 #codinginterview #interviewprep #faangprep #dsa #datastructures #algorithms #learncoding #programming #placements #softwareengineering #codingtips #leetcodeproblems #heappattern CHAPTERS 00:00 - Introduction & Recap 00:42 - LeetCode 414 - Approach 1 - Theory 10:33 - LeetCode 414 - Approach 1 - Code 21:13 - LeetCode 414 - Approach 2 - Theory 32:34 - LeetCode 414 - Approach 2 - Code 42:13 - LeetCode 2530 - Approach 1 - Theory 53:45 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/B9RBxkZ-5Fk https://www.techtube.co.in/tutorials/day-6690-master-top-k-elements-pattern-with-2-must-know-problems-1481-3264-8-topk 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/htibxr9KxEY/maxresdefault.jpg Day 66/90 |⚡🔥 Master Top K Elements Pattern with 2 MUST-KNOW Problems 🔥 (1481 + 3264) 🚀🔥#8 #topk Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/66_Day In this video, we break down two important heap-based DSA problems that are frequently asked in coding interviews: 🔥 1481. Least Number of Unique Integers after K Removals 🔥 3264. Final Array State After K Multiplication Operations I You’ll learn how to approach these problems using both sorting and heap (priority queue) techniques, and more importantly — understand the pattern behind them so you can solve similar questions easily in interviews. 🚀 What you'll learn: ✅ 1481. Least Number of Unique Integers after K Removals Frequency map + sorting approach Greedy intuition: remove smallest frequency first Optimized solution using min heap Time & space complexity explained ✅ 3264. Final Array State After K Multiplication Operations I Why brute force is inefficient Using a min heap to always pick the smallest element Step-by-step simulation of operations Clean and optimal implementation 💡 Key Concepts Covered: Heap (Priority Queue) Pattern Greedy Strategy Frequency-based problems Top K / Min Heap intuition Sorting vs Heap trade-offs 🧠 Why this video matters: Most candidates struggle not because they don’t practice enough — but because they don’t recognize patterns. This video is part of the Babua DSA Patterns Course 2025, where: You learn 30 powerful DSA patterns Each pattern includes templates + multiple problems Designed to boost logic and retention 🧩 Problems Covered: Leetcode 1481 – Least Number of Unique Integers after K Removals Leetcode 3264 – Final Array State After K Multiplication Operations I 🎯 Who should watch? Beginners learning DSA Students preparing for placements Engineers targeting product-based companies Anyone struggling with heap / greedy problems 📣 Call to Action: Comment "COURSE" to get the full Babua DSA Patterns Sheet + Revision Tracker 🚀 🔍 Keywords: heap problems, greedy algorithms, leetcode 1481, leetcode 3264, min heap pattern, top k elements, dsa patterns, coding interview preparation, priority queue, sorting vs heap Hashtags: #dsapatterns #babuaDSA #heap #priorityqueue #greedyalgorithm #leetcode1481 #leetcode3264 #codinginterview #interviewprep #faangprep #dsa #datastructures #algorithms #learncoding #programming #placements #softwareengineering #codingtips #leetcodeproblems #heappattern Your Queries: leetcode 1481 least number of unique integers leetcode 3264 final array state after k multiplications heap problems priority queue greedy algorithm top k elements min heap pattern sorting vs heap frequency map problems coding interview prep dsa patterns babua dsa leetcode solutions data structures and algorithms faang preparation interview questions dsa CHAPTERS 00:00 - Introduction & Recap 00:42 - LeetCode 3264 - Approach 1 - Theory 06:08 - LeetCode 3264 - Approach 2 - Theory 15:32 - LeetCode 3264 - Approach 2 - Code 24:30 - LeetCode 1481 - Approach 1 - Theory 30:00 - LeetCode 1481 - Approach 1 - Code 41:29 - LeetCode 1481 - Approach 2 - Theory 48:13 - LeetCode 1481 - Approach 2 - Code 53:15 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/htibxr9KxEY https://www.techtube.co.in/tutorials/day-6790-leetcode-2233-maximum-product-after-k-increments-brute-heap-optimized-8-topk 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/gSxdhfWkAnw/maxresdefault.jpg Day 67/90 |⚡🔥LeetCode 2233 🔥 Maximum Product After K Increments (Brute → Heap → Optimized) 🚀#8 #topk Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/67_Day 🚀 Maximum Product After K Increments | Brute Force → Heap → Optimized Greedy Explained! In this video, we break down the popular LeetCode problem “Maximum Product After K Increments” step-by-step and build strong intuition from scratch. If you’ve ever struggled with when to use heaps or how greedy decisions maximize product, this video is for you! 🔥 What You’ll Learn ✅ Brute Force Approach Try all possibilities Understand why it fails (TLE) Build base intuition ✅ Min Heap Increment Approach Always increment the smallest element Why this greedy strategy works Step-by-step dry run ✅ Optimized Heap + Difference Approach Batch increments instead of one-by-one Reduce time complexity drastically Handle large constraints efficiently 🧠 Key Concepts Covered Greedy Strategy for Product Maximization Why balancing numbers increases product Min Heap (Priority Queue) usage Time Complexity Optimization Modulo Arithmetic (Important Edge Cases ⚠️) 💡 Why This Problem is Important This problem is a classic greedy + heap pattern asked in coding interviews and helps you understand: How to maximize product under constraints When to use priority queues effectively How to optimize from O(k log n) → better approaches 📌 Practice Problems Maximum Product After K Increments Minimize Deviation in Array K Closest Points to Origin 🎯 Who Should Watch? DSA beginners struggling with greedy Interview prep (FAANG / Product companies) Anyone learning heap-based patterns 📢 Call to Action If this helped you understand the pattern: 👍 Like the video 💬 Comment “HEAP” to get more such problems 🔔 Subscribe for daily DSA pattern breakdowns 📚 Resources 👉 Complete DSA Patterns Course (Free): Link in comments 👉 Revision Sheet: Comment “DSA” to get it Hashtags: #maximumproductafterkincrements #leetcode2233 #dsapatterns #heap #minheap #priorityqueue #greedyalgorithm #codinginterview #faangprep #datastructures #algorithms #competitiveprogramming #leetcode #coding #programming #softwareengineering #interviewpreparation #learncoding #dsa #problemSolving Your Queries: maximum product after k increments leetcode 2233 solution heap greedy algorithm min heap dsa priority queue problems dsa patterns greedy approach explained heap optimization technique coding interview questions faang dsa prep data structures algorithms maximize product array increment smallest element heap competitive programming dsa leetcode medium solutions interview preparation coding algorithm optimization techniques CHAPTERS 00:00 - Introduction & Recap 00:31 - LeetCode 2233 - Approach 1 - Theory 10:40 - LeetCode 2233 - Approach 2 - Theory 13:48 - LeetCode 2233 - Approach 3 - Theory 20:05 - LeetCode 2233 - Approach 2 - Code 36:28 - LeetCode 2233 - Approach 3 - Code 42:00 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/gSxdhfWkAnw https://www.techtube.co.in/tutorials/day-6890-leetcode-632-smallest-range-covering-elements-from-k-lists-heap-intuition8-topk 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/daa_fkmcQ9E/maxresdefault.jpg Day 68/90 |⚡🔥(LeetCode 632) Smallest Range Covering Elements from K Lists | Heap Intuition🚀#8 #topk Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/68_Day 🚀 632. Smallest Range Covering Elements from K Lists | Min Heap Intuition Explained 🔥 Struggling with heap-based problems? In this video, we break down one of the most important interview questions — 632. Smallest Range Covering Elements from K Lists — using a step-by-step intuitive approach. You’ll learn how to think about this problem like a pro using Min Heap + Greedy strategy, and understand why we always move the minimum element instead of the maximum. 💡 What you'll learn in this video: ✔️ Problem intuition (why smallest range matters) ✔️ Why we start with the first element of each list ✔️ Min Heap approach explained visually ✔️ Key insight: why we only move the minimum pointer ✔️ Dry run with example for full clarity ✔️ Time & space complexity breakdown ✔️ Common mistakes and edge cases 🧠 Concepts covered: Heap (Priority Queue) Greedy Algorithms Merge K Sorted Lists Pattern Sliding Window Intuition Two Pointer Thinking 📌 Why this problem is important? This is a top-tier interview question frequently asked in product-based companies. It combines multiple concepts and tests your ability to think in terms of ranges, heaps, and optimization. 💬 Drop a comment if you want a full playlist on Heap-based patterns or more such interview problems! 🔥 Don’t forget to LIKE, SHARE & SUBSCRIBE for more DSA patterns explained in the simplest way possible. Hashtags: #leetcode #leetcode632 #dsa #dsaproblems #codinginterview #interviewprep #heaps #priorityqueue #datastructures #algorithms #greedyalgorithm #slidingwindow #mergeksortedlists #codingquestions #placements #softwareengineering #javaprogramming #codingtips #learncoding #programming #techinterview #faangprep #dsapatterns #problemSolving #computerscience Your Queries: smallest range covering elements from k lists leetcode 632 smallest range problem heap problems priority queue dsa min heap explained dsa heap pattern merge k sorted lists coding interview questions dsa for placements algorithms tutorial greedy algorithms sliding window dsa java dsa leetcode solutions faang interview prep data structures and algorithms coding practice interview preparation heap intuition CHAPTERS 00:00 - Introduction & Recap 01:01 - LeetCode 632 - Approach 1 - Theory 34:44 - LeetCode 632 - Approach 1 - Code 51:30 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/daa_fkmcQ9E https://www.techtube.co.in/tutorials/day-690solve-three-popular-string-interview-questions-with-1-trick-babua-dsa-patterns-2025-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/IW8gQ2u2O_I/maxresdefault.jpg Day 6/90🔥Solve Three Popular String Interview Questions with 1 Trick | Babua DSA Patterns 2025 #dsa Sheet Link: https://app.nextgen-cto.in/login JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/tree/main/6_Day Problems URLs: 151. Reverse Words in a String: https://leetcode.com/problems/reverse-words-in-a-string/description/ 557. Reverse Words in a String III: https://leetcode.com/problems/reverse-words-in-a-string-iii/description/ 🔄 Reverse Words in a String — Two Approaches in Java | Day 6/90 | Babua DSA Patterns 2025 Welcome to Day 6 of the Babua DSA Patterns Course 2025! In today’s session, we dive deep into an essential string manipulation problem: Reverse Words in a String. 👨‍💻 What You’ll Learn: Approach 1: Using trim(), split(), reverse array, and String.join() Approach 2: Using StringBuilder for an optimized solution Understand how this pattern helps solve related problems like: Reverse Words in a String II Reverse Words in a String III 🔧 Tech Used: Java 📚 Pattern Focus: Two Pointer & String Manipulation 🔥 Why It Matters: This technique is a common interview question and helps build your intuition for tackling variations of string-based problems. 🎓 Join the Journey: This video is part of the Babua DSA Patterns Course (90 days) by CTO Bhaiya — designed to help you crack tough coding interviews with ease. Hashtags: #BabuaDSAPatterns #ReverseWordsInAString #JavaProgramming #CTOBhaiya #DSAin90Days #StringManipulation #CodingInterviewPrep #TwoPointerTechnique #LearnJava #BabuaDSA2025 #LeetCodeSolutions #CodingBootcamp #TechInterview #JavaDSA #DSACourse #ApnaCollege #Striver #LoveBabbar #TakeUForward #NamasteDev #CTOJourney #ProgrammingTutorials #SoftwareEngineering #CodeWithMe #DSAChallenges Your Queries: Babua DSA Patterns Reverse Words in a String Java reverse words String manipulation Java CTO Bhaiya DSA in 90 Days Two Pointer technique Java StringBuilder coding interview questions reverse words Java DSA patterns 2025 coding bootcamp LeetCode Java Apna College Striver Take U Forward Namaste Dev Love Babbar programming for interviews Java tutorial for beginners software engineering basics coding interview prep CHAPTERS 00:00 Introduction 01:09 151. Reverse Words in a String - Theory 03:05 151. Reverse Words in a String - Approach 1 - Theory 09:05 151. Reverse Words in a String - Approach 1 - Code 16:08 151. Reverse Words in a String - Approach 2 - Theory 29:50 151. Reverse Words in a String - Approach 2 - Code 46:16 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 WhatsApp Community: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/IW8gQ2u2O_I https://www.techtube.co.in/tutorials/day-6990-leetcode-3478-choose-k-elements-with-maximum-sum-heap-intuition8-topk 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/avEJlYWvPGQ/maxresdefault.jpg Day 69/90 |⚡🔥(LeetCode 3478) Choose K Elements With Maximum Sum | Heap Intuition🚀#8 #topk Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/69_Day 🚀 3478. Choose K Elements With Minimum Sum | Heap + Greedy Explained 🔥 In this video, we break down 3478. Choose K Elements With Minimum Sum — a powerful problem that tests your understanding of heaps, greedy decisions, and optimization strategies. If you’ve struggled with choosing the best k elements under constraints, this video will help you build the right intuition and approach step-by-step. 💡 What you'll learn in this video: ✔️ Problem intuition (what does “minimum sum” really mean?) ✔️ Brute force vs optimized approach ✔️ How to use a heap to track optimal elements ✔️ Greedy strategy explained clearly ✔️ Step-by-step dry run for better understanding ✔️ Time & space complexity breakdown ✔️ Common mistakes and edge cases 🧠 Concepts covered: Heap (Priority Queue) Greedy Algorithms Top K Elements Pattern Optimization Techniques Sorting vs Heap trade-offs 📌 Why this problem is important? This problem strengthens your ability to think in terms of selection strategies and is a great example of how heaps can optimize brute force solutions. It’s highly relevant for coding interviews and real-world scenarios where you need to pick optimal subsets efficiently. 💬 Comment below if you want more videos on Top K / Heap patterns or similar interview questions! 🔥 Don’t forget to LIKE, SHARE & SUBSCRIBE for more DSA patterns explained in the simplest way possible. Hashtags: #leetcode #leetcode3478 #dsa #dsaproblems #codinginterview #interviewprep #heaps #priorityqueue #topkproblems #greedyalgorithm #datastructures #algorithms #codingquestions #placements #softwareengineering #javaprogramming #codingtips #learncoding #programming #techinterview #faangprep #dsapatterns #problemSolving #computerscience Your Queries: choose k elements with minimum sum leetcode 3478 minimum sum problem top k elements dsa heap problems priority queue dsa greedy algorithms dsa heap pattern coding interview questions dsa for placements algorithms tutorial java dsa leetcode solutions faang interview prep data structures and algorithms coding practice interview preparation top k pattern CHAPTERS 00:00 - Introduction & Recap 00:40 - LeetCode 3478 - Approach 1 - Theory 07:17 - LeetCode 3478 - Approach 1 - Code 17:11 - LeetCode 3478 - Approach 2 - Theory 35:24 - LeetCode 3478 - Approach 2 - Code 55:15 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/avEJlYWvPGQ https://www.techtube.co.in/tutorials/day-7090-leetcode-3266-final-array-state-after-k-multiplication-operations-ii-8-topk 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Jehf6RYk1vc/maxresdefault.jpg Day 70/90 |⚡🔥(LeetCode 3266) Final Array State After K Multiplication Operations II 🚀#8 #topk Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/70_Day 🚀 LeetCode 3266: Final Array State After K Multiplication Operations II | Heap + Greedy Explained In this video, we break down LeetCode 3266 – Final Array State After K Multiplication Operations II, a challenging problem that tests your understanding of heaps (priority queues), greedy strategy, and optimization techniques. 🧠 What You’ll Learn: How to approach the problem intuitively Why a min-heap is the key data structure Step-by-step dry run of the algorithm Optimizing repeated multiplication operations Handling large constraints efficiently Time & space complexity analysis ⚡ Problem Insight: Instead of blindly performing K operations, we explore how to: Always pick the minimum element Multiply it smartly to maximize/minimize outcome (based on problem requirement) Use a heap to maintain order efficiently 🔥 Why This Problem is Important: Frequently asked in coding interviews Strengthens your heap + greedy pattern recognition Helps in solving similar problems involving: Repeated operations Dynamic updates Optimization under constraints 🛠️ Concepts Covered: Min Heap / Priority Queue Greedy Algorithms Modular Arithmetic (if applicable) Efficient Simulation 🎯 Who Should Watch: Students preparing for DSA & coding interviews Anyone struggling with heap-based problems Learners targeting FAANG / top tech companies 💡 Pro Tip: Mastering problems like this will help you quickly identify “always pick min/max + update” patterns, which are very common in interviews. 👍 Like, Share & Subscribe for more DSA pattern-based learning! #leetcode #dsa #heaps #greedy #codinginterview #datastructures #algorithms #priorityqueue #faangprep #softwareengineering Hashtags: #leetcode #leetcode3266 #dsa #datastructures #algorithms #codinginterview #interviewpreparation #faangprep #heap #priorityqueue #greedyalgorithm #codingproblems #programming #softwareengineering #computerscience #learncoding #dsapatterns #competitiveprogramming #codingpractice #techinterview #placementpreparation #problemSolving #javaprogramming #pythonprogramming #cpluspluss #interviewtips Your Queries: choose k elements with minimum sum leetcode 3478 minimum sum problem top k elements dsa heap problems priority queue dsa greedy algorithms dsa heap pattern coding interview questions dsa for placements algorithms tutorial java dsa leetcode solutions faang interview prep data structures and algorithms coding practice interview preparation top k pattern CHAPTERS 00:00 - Introduction & Recap 01:25 - LeetCode 3266 - Approach 1 - Theory 31:17 - LeetCode 3266 - Approach 1 - Code 01:04:01 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Jehf6RYk1vc https://www.techtube.co.in/tutorials/day-7090-leetcode-3266-part-2-the-proof-behind-it-intuition-8-topk 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/0R5YgZbGhxg/maxresdefault.jpg Day 70/90 |⚡🔥(LeetCode 3266): Part-2: The Proof Behind it (Intuition) 🚀#8 #topk Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/70_Day 🚀 LeetCode 3266: Final Array State After K Multiplication Operations II | Heap + Greedy Explained In this video, we break down LeetCode 3266 – Final Array State After K Multiplication Operations II, a challenging problem that tests your understanding of heaps (priority queues), greedy strategy, and optimization techniques. 🧠 What You’ll Learn: How to approach the problem intuitively Why a min-heap is the key data structure Step-by-step dry run of the algorithm Optimizing repeated multiplication operations Handling large constraints efficiently Time & space complexity analysis ⚡ Problem Insight: Instead of blindly performing K operations, we explore how to: Always pick the minimum element Multiply it smartly to maximize/minimize outcome (based on problem requirement) Use a heap to maintain order efficiently 🔥 Why This Problem is Important: Frequently asked in coding interviews Strengthens your heap + greedy pattern recognition Helps in solving similar problems involving: Repeated operations Dynamic updates Optimization under constraints 🛠️ Concepts Covered: Min Heap / Priority Queue Greedy Algorithms Modular Arithmetic (if applicable) Efficient Simulation 🎯 Who Should Watch: Students preparing for DSA & coding interviews Anyone struggling with heap-based problems Learners targeting FAANG / top tech companies 💡 Pro Tip: Mastering problems like this will help you quickly identify “always pick min/max + update” patterns, which are very common in interviews. 👍 Like, Share & Subscribe for more DSA pattern-based learning! #leetcode #dsa #heaps #greedy #codinginterview #datastructures #algorithms #priorityqueue #faangprep #softwareengineering Hashtags: #leetcode #leetcode3266 #dsa #datastructures #algorithms #codinginterview #interviewpreparation #faangprep #heap #priorityqueue #greedyalgorithm #codingproblems #programming #softwareengineering #computerscience #learncoding #dsapatterns #competitiveprogramming #codingpractice #techinterview #placementpreparation #problemSolving #javaprogramming #pythonprogramming #cpluspluss #interviewtips Your Queries: choose k elements with minimum sum leetcode 3478 minimum sum problem top k elements dsa heap problems priority queue dsa greedy algorithms dsa heap pattern coding interview questions dsa for placements algorithms tutorial java dsa leetcode solutions faang interview prep data structures and algorithms coding practice interview preparation top k pattern CHAPTERS 00:00 - Introduction & Recap 02:54 - Proof of k distribution 11:50 - Time & Space Complexity 13:19 - Dry Run 19:20 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/0R5YgZbGhxg https://www.techtube.co.in/tutorials/day-7190-leetcode-1383-maximum-performance-of-a-team-brute-heap-8-topk 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/baXoJUc8tOk/maxresdefault.jpg Day 71/90 |⚡🔥(LeetCode 1383) Maximum Performance of a Team (Brute → Heap) 🚀#8 #topk Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/71_Day Struggling with LeetCode 1383 – Maximum Performance of a Team? 🤯 In this video, we break it down step-by-step using brute force, sorting, and heap (priority queue) approaches so you can truly understand the intuition behind the problem. We start from the naive brute force solution to build your foundation, then optimize it using sorting + greedy strategy, and finally unlock the heap-based optimal solution that is commonly asked in top tech interviews 🚀 If you’ve ever been confused about: Why we sort engineers by efficiency 🤔 How to maximize performance using speed + efficiency Where and why a min-heap is used 👉 This video will make it crystal clear. 🧠 What you’ll learn ✔️ Brute force approach (and why it fails) ✔️ Key observation: fixing minimum efficiency ✔️ Sorting engineers by efficiency (greedy insight) ✔️ Using a min-heap to track top speeds ✔️ Step-by-step dry run with example ✔️ Time & space complexity analysis ⚡ Problem Summary You are given: n engineers speed[i] and efficiency[i] You need to form a team of at most k engineers such that: 👉 Performance = (sum of speeds) × (minimum efficiency in team) Maximize this value. 🎯 Why this problem is important This problem teaches: Greedy thinking Heap optimization Sorting + decision making Real interview pattern used in companies like Google, Amazon, and Microsoft 💡 Pro Tip 👉 Always try to fix one variable (efficiency) and optimize the rest (speed). This is the core trick behind many greedy + heap problems. 🔥 Practice Next K Empty Slots K Closest Points to Origin Top K Frequent Elements 📢 Call to Action If this helped you: 👍 Like the video 💬 Comment your doubts 🔔 Subscribe for daily DSA & System Design content 🏷️ Hashtags #leetcode #dsa #heap #greedy #algorithms #codinginterview #softwareengineering #programming #priorityqueue #datastructures #placements #coding Hashtags: #leetcode1383 #maximumperformanceofateam #dsa #datastructures #algorithms #heap #priorityqueue #greedyalgorithm #codinginterview #interviewpreparation #softwareengineering #codingquestions #leetcodeproblems #hardproblems #topkproblems #placements #programming #codingskills #developers #techinterview Your Queries: leetcode 1383 maximum performance of a team heap approach greedy algorithm priority queue sorting and heap dsa problems coding interview preparation leetcode hard problems speed efficiency problem max performance team explanation data structures and algorithms top k heap problems interview coding questions software engineering interview prep CHAPTERS 00:00 - Introduction & Recap 00:45 - LeetCode 1383 - Approach 1 - Theory 18:28 - LeetCode 1383 - Approach 1 - Code 34:40 - LeetCode 1383 - Approach 2 - Theory 57:38 - LeetCode 1383 - Approach 2 - Code 01:12:37 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/baXoJUc8tOk https://www.techtube.co.in/tutorials/day-7290-binary-search-pattern-explained-theory-modified-bs-2-key-problem-types-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Cv8_VsKjhTo/maxresdefault.jpg Day 72/90 |⚡🔥⚡ Binary Search Pattern Explained | Theory + Modified BS + 2 Key Problem Types 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/72_Day This video is your complete guide to understanding the Binary Search pattern, one of the most important and frequently asked concepts in coding interviews. We go beyond just the basic binary search and dive deep into how the pattern actually works, when to use it, and how to adapt it to solve complex problems efficiently. You’ll learn not just the theory, but also how to apply modified binary search techniques and recognize the two major types of binary search problems that appear in interviews. By the end of this video, you’ll be able to identify binary search opportunities instantly and solve problems with confidence. 👉 In this video, you’ll learn: • Core theory behind binary search • How binary search reduces time complexity to O(log n) • Iterative vs recursive approach • Modified binary search (handling edge cases & variations) • Type 1: Binary Search on Sorted Arrays • Type 2: Binary Search on Answer (Search Space Optimization) • Common mistakes and how to avoid them • Interview-focused problem-solving intuition 🎯 This video is perfect for: • Coding interview preparation (FAANG / product-based companies) • DSA beginners to advanced learners • Anyone struggling with binary search concepts • Developers who want to improve problem-solving skills 💡 Binary Search is not just a technique — it’s a pattern. Once you master it, you’ll unlock a whole category of problems that become much easier to solve. Hashtags: #binarysearch #binarysearchpattern #modifiedbinarysearch #dsapatterns #datastructures #algorithms #leetcode #leetcodeproblems #codinginterviewprep #codinginterview #faangprep #faanginterview #dsa #learncoding #programming #softwareengineering #interviewpreparation #codingtips #problemSolving #searchingalgorithms #computerscience #techinterviews #codingeducation #dsaquestions #algorithmicthinking Your Queries: binary search pattern binary search tutorial modified binary search binary search on answer search space optimization lower bound upper bound binary search problems leetcode dsa patterns data structures and algorithms coding interview preparation faang interview prep leetcode binary search searching algorithms programming tutorials problem solving techniques algorithm patterns interview coding questions advanced binary search CHAPTERS 00:00 - Introduction & Recap 00:41 - Basic Binary Search 10:07 - Core Logic 14:53 - Binary Search Template 21:28 - Modified Binary Search 28:50 - Common Variations of modified BS 45:10 - Modified Binary Search Template 46:20 - Two Types of Binary Search 01:13:05 - Type 2 Template 01:18:12 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Cv8_VsKjhTo https://www.techtube.co.in/tutorials/day-7390-4-top-binary-search-problems-explained-crack-leetcode-fast-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/2teSYIJqMVY/maxresdefault.jpg Day 73/90 |⚡| 4 Top Binary Search Problems Explained 🚀 | Crack LeetCode Fast 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/73_Day 🚀 Master the Binary Search Pattern with the most important LeetCode problems! In this video, we break down the core concepts of binary search and show how to apply it to solve some of the most frequently asked interview questions. Whether you're preparing for coding interviews or strengthening your DSA fundamentals, this video will help you build strong intuition and pattern recognition. 📌 Problems covered in this video: • Binary Search Basics • First and Last Occurrence of Target • First Bad Version • Find Peak Element 💡 What you’ll learn: • When to use binary search vs linear search • Difference between low is less than or equal to high and low is less than high templates • How to find boundaries (first/last occurrence) • Binary search on answer pattern • How to identify monotonic conditions • Peak finding intuition (not searching for value, but a condition) • Time & Space Complexity analysis 🧠 By the end of this video, you’ll be able to: • Solve multiple variations of binary search problems confidently • Recognize patterns quickly in interviews • Write optimized and bug-free binary search code 🔥 Perfect for: • Coding interview preparation (FAANG, product-based companies) • DSA beginners to intermediate learners • Anyone struggling with binary search variations Hashtags: #binarysearch #binarysearchalgorithm #leetcode #leetcodeproblems #codinginterview #codinginterviewprep #dsa #datastructuresandalgorithms #algorithms #programming #softwareengineering #faang #interviewpreparation #leetcodebinarysearch #firstandlastoccurrence #firstbadversion #findpeakelement #codingquestions #techinterview #placements #computerscience #learncoding #dsapatterns #codingpatterns #problem-solving Your Queries: binary search binary search algorithm leetcode binary search binary search pattern first and last occurrence find first occurrence find last occurrence first bad version find peak element peak element problem leetcode problems dsa problems coding interview prep faang interview questions algorithms data structures coding patterns binary search variations interview coding questions software engineering interviews CHAPTERS 00:00 - Introduction & Recap 00:52 - LeetCode 704 - Theory 05:48 - LeetCode 704 - Code 14:08 - LeetCode 34 - Theory 27:12 - LeetCode 34 - Code 35:42 - LeetCode 278 - Type 1 - Theory 50:35 - LeetCode 278 - Type 1 - Code 54:05 - LeetCode 278 - Type 2 - Theory 59:03 - LeetCode 278 - Type 2 - Code 01:02:12 - LeetCode 162 - Type 2 - Theory 01:21:42 - LeetCode 162 - Type 2 - Code 01:27:35 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/2teSYIJqMVY https://www.techtube.co.in/tutorials/day-7490-3-top-binary-search-problems-explained-crack-leetcode-fast-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/aGXCRia48YY/maxresdefault.jpg Day 74/90 |⚡| 3 Top Binary Search Problems Explained 🚀 | Crack LeetCode Fast 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/74_Day Master Binary Search patterns with 3 of the most important interview problems: ✅ Square Root of X ✅ Search in Rotated Sorted Array ✅ Single Element in a Sorted Array In this video, we go beyond just solving problems — we focus on pattern recognition, helping you understand when and how to apply binary search, even in tricky scenarios. 🎯 What you’ll learn How to apply binary search on answer space (Sqrt(x)) How to handle rotated sorted arrays efficiently How to find the unique element using index patterns Difference between: low is less than or = high vs low is less than high How to avoid common off-by-one errors Step-by-step intuition + dry runs 🧠 Key Concepts Covered Binary Search Pattern Modified Binary Search Searching in rotated arrays Index-based reasoning Logarithmic time complexity (O(log n)) 💡 Problems Covered Sqrt(x) Search in Rotated Sorted Array Single Element in a Sorted Array 👩‍💻 Who is this for? DSA & coding interview aspirants Beginners struggling with binary search Anyone preparing for FAANG / product-based companies Engineers who want to build strong problem-solving intuition 👍 If this helped you Like the video 👍 Subscribe for more DSA patterns & interview prep Drop your doubts in the comments Hashtags: #BinarySearch #BinarySearchPattern #ModifiedBinarySearch #DSA #CodingInterviews #LeetCode #SearchInRotatedArray #SqrtX #SingleElementSortedArray #Algorithm #DataStructures #InterviewPrep #DSAPrep #LogarithmicTime #ProblemSolving #TechInterviews #SoftwareEngineering #LearnDSA #CodingPractice #FAANGPrep Your Queries: binary search binary search pattern modified binary search sqrt x leetcode search in rotated sorted array rotated array binary search single element in sorted array leetcode binary search problems dsa interview prep coding interview questions data structures and algorithms logarithmic time complexity binary search explained faang interview prep problem solving techniques learn dsa coding practice CHAPTERS 00:00 - Introduction & Recap 01:27 - LeetCode 69 - Approach 1 - Theory 06:17 - LeetCode 69 - Approach 1 - Code 12:33 - LeetCode 69 - Approach 2 - Theory 18:02 - LeetCode 69 - Approach 2 - Code 21:48 - LeetCode 69 - Approach 3 - Theory 27:45 - LeetCode 69 - Approach 3 - Code 33:02 - LeetCode 33 - Approach 1 - Theory 49:04 - LeetCode 33 - Approach 1 - Code 58:59 - LeetCode 540 - Approach 1 - Theory 01:03:40 - LeetCode 540 - Approach 1 - Code 01:06:40 - LeetCode 540 - Approach 2 - Theory 01:17:20 - LeetCode 540 - Approach 2 - Code 01:27:01 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/aGXCRia48YY https://www.techtube.co.in/tutorials/day-7590-2-top-binary-search-problems-explained-crack-leetcode-fast-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/KquL9fTEiJw/maxresdefault.jpg Day 75/90 |⚡| 2 Top Binary Search Problems Explained 🚀 | Crack LeetCode Fast 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/75_Day 🚀 Master Two Powerful Binary Search Problems | LeetCode Explained In this video, we dive deep into two highly important interview problems: 🔹 Single Element in a Sorted Array (Binary Search Pattern) 🔹 K Weakest Rows in a Matrix If you're preparing for coding interviews or aiming to strengthen your problem-solving skills, this video will help you understand not just the solutions—but the intuition behind them. 🧠 What you’ll learn: ✅ How to identify patterns in problems ✅ Binary Search on index properties (not just values) ✅ Why pairing logic works in "Single Element" problem ✅ Using Min Heap / Priority Queue efficiently ✅ Optimizing from brute force → optimal solution ✅ Time & Space complexity breakdown 📌 Problems Covered: Single Element in a Sorted Array (LeetCode 540) → Find the only non-duplicate element in a sorted array → Learn how index patterns help eliminate half the search space K Weakest Rows in a Matrix (LeetCode 1337) → Identify weakest rows based on soldier count → Use heap to efficiently track top K elements 💡 Why this matters: These problems teach two core patterns frequently asked in interviews: Binary Search beyond basics Top K Elements using Heap Once you master these, you’ll start recognizing similar patterns across multiple questions. 🔥 Perfect for: DSA beginners to intermediate learners Coding interview preparation (FAANG / product companies) Anyone struggling with Binary Search & Heap patterns Hashtags: #singleelementinsortedarray #kweakestrows #leetcode540 #leetcode1337 #binarysearchpattern #heapproblems #topkpattern #arrayproblems #matrixproblems #searchingalgorithms #pairinglogic #indexbasedbinarysearch #minheap #priorityqueueproblems #countingones #weakestranks #efficientalgorithms #logntime #codingpatterns #interviewquestions Your Queries: single element in sorted array leetcode 540 k weakest rows in a matrix leetcode 1337 binary search pattern heap pattern priority queue problems top k elements dsa interview questions coding interview preparation array problems matrix problems binary search intuition heap intuition min heap vs max heap algorithm explanation time complexity analysis faang interview prep leetcode solutions data structures and algorithms CHAPTERS 00:00 - Introduction & Recap 01:00 - LeetCode 540 - Approach 3 - Theory 15:25 - LeetCode 540 - Approach 3 - Code 20:48 - LeetCode 1337 - Approach 1 - Theory 26:13 - LeetCode 1337 - Approach 1 - Code 34:30 - LeetCode 1337 - Approach 2 - Theory 42:00 - LeetCode 1337 - Approach 2 - Code 49:30 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/KquL9fTEiJw https://www.techtube.co.in/tutorials/day-7690-crack-leetcode-1337-528-using-binary-search-like-a-pro-crack-leetcode-fast-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/iw17VOCSrT4/maxresdefault.jpg Day 76/90 |⚡Crack LeetCode 1337 & 528 Using Binary Search Like a Pro 🚀 | Crack LeetCode Fast 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/76_Day 🚀 Master Binary Search + Heap + Probability in One Video! | LeetCode Explained In this video, we break down two powerful coding interview problems step by step with clear intuition, visual thinking, and optimized approaches: 🔹 K Weakest Rows in a Matrix (LeetCode 1337) Learn how to efficiently identify the weakest rows using: 🔍 Binary Search to count soldiers (1s) ⚡ Min Heap / Priority Queue to track top K rows 💡 Time & Space Complexity explained clearly 🔹 Random Pick with Weight (LeetCode 528) Understand how to pick an index based on weighted probability using: 📊 Prefix Sum technique 🎯 Binary Search on cumulative distribution 🧠 Intuition using probability & number line 💡 This video will help you: Recognize when to combine binary search + heap Understand probability-based selection using arrays Improve your problem-solving intuition for interviews Solve real FAANG-level coding questions efficiently 🧠 Perfect for: DSA beginners to advanced learners Coding interview preparation LeetCode practice (Medium level problems) Anyone looking to master patterns, not just solutions 🔥 Keep learning, keep building! Hashtags: #leetcode #dsa #datastructures #algorithms #codinginterview #interviewprep #faang #faangprep #binarysearch #heap #priorityqueue #prefixsum #probability #randompickwithweight #kweakestrows #leetcode1337 #leetcode528 #coding #programming #softwareengineering #computerscience #competitiveprogramming #learncoding #codingpractice #techinterview Your Queries: leetcode k weakest rows leetcode 1337 explanation k weakest rows binary search heap random pick with weight leetcode 528 prefix sum binary search probability weighted random selection algorithm heap priority queue problems binary search patterns dsa faang coding interview prep data structures algorithms tutorial leetcode medium solutions coding interview questions dsa patterns explained competitive programming techniques CHAPTERS 00:00 - Introduction 00:40 - LeetCode 1337 - Approach 3 - Theory 09:51 - LeetCode 1337 - Approach 3 - Code 22:10 - LeetCode 528 - Approach 1 - Theory 40:33 - LeetCode 528 - Approach 1 - Code 47:13 - LeetCode 528 - Approach 2 - Theory 51:05 - LeetCode 528 - Approach 2 - Code 55:20 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/iw17VOCSrT4 https://www.techtube.co.in/tutorials/day-7790-crack-leetcode-153-658-using-binary-search-like-a-pro-crack-leetcode-fast-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/a_V_Nz-x7O4/maxresdefault.jpg Day 77/90 |⚡Crack LeetCode 153 & 658 Using Binary Search Like a Pro 🚀 | Crack LeetCode Fast 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/77_Day Master two important binary search problems in this video: 153. Find Minimum in Rotated Sorted Array 658. Find K Closest Elements We start with the intuition behind a rotated sorted array and understand why comparing nums[mid] with nums[high] helps us decide which half contains the minimum element. Then we move to Find K Closest Elements, where we learn a smarter binary search approach to find the best window of size k instead of sorting by distance. In this video, you’ll learn: How rotation changes a sorted array Why the minimum always lies in the unsorted half Binary search intuition for rotated arrays How to compare nums[mid] and nums[high] Why Find K Closest Elements can be solved using binary search on the answer window How the condition x - arr[mid] greater than arr[mid + k] - x helps us move left or right Dry run and explanation of both problems Time and space complexity Problems covered: 153. Find Minimum in Rotated Sorted Array 658. Find K Closest Elements Perfect for beginners learning binary search patterns and anyone preparing for coding interviews, LeetCode practice, and DSA problem solving. Hashtags: #binarysearch #leetcode #dsa #datastructures #algorithms #codinginterview #interviewpreparation #leetcode153 #leetcode658 #findminimuminrotatedsortedarray #findkclosestelements #modifiedbinarysearch #binarysearchpattern #java #javaprogramming #dsainjava #faangprep #placements #codingpractice #softwareengineering Your Queries: binary search leetcode 153 leetcode 658 find minimum in rotated sorted array find k closest elements rotated sorted array modified binary search binary search pattern dsa data structures and algorithms coding interview interview preparation java dsa leetcode problems faang prep placement preparation array problems binary search intuition CHAPTERS 00:00 - Introduction 00:40 - LeetCode 153 - Approach 1 - Theory 16:57 - LeetCode 153 - Approach 1 - Code 20:08 - LeetCode 658 - Approach 1 - Theory 26:38 - LeetCode 658 - Approach 1 - Code 32:52 - LeetCode 658 - Approach 2 - Theory 47:06 - LeetCode 658 - Approach 2 - Code 01:03:05 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/a_V_Nz-x7O4 https://www.techtube.co.in/tutorials/day-7790-part-2-binary-search-trick-that-finds-k-closest-elements-fast-leetcode-658-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/2iCR93_SA5c/maxresdefault.jpg Day 77/90 | Part 2 |⚡Binary Search Trick That Finds K Closest Elements Fast | LeetCode 658 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/77_Day Master the Find K Closest Elements problem using the powerful binary search on left bound approach. In this video, we solve LeetCode 658. Find K Closest Elements using the optimized arr[mid] and arr[mid + k] comparison technique. Instead of checking every possible window or sorting by distance, we binary search for the best starting index of a window of size k. You’ll learn how to think of the answer as a continuous window, why the left boundary can only go up to arr.length - k, and how this condition works: if (x - arr[mid] greater than arr[mid + k] - x) This comparison helps us decide whether the best window is more towards the left or the right side of the array. In this video, we cover: Brute force intuition Why the answer is always a sorted window of size k How binary search finds the left bound Why we compare arr[mid] with arr[mid + k] Number line intuition for closest elements Dry run with examples Java code explanation Time and space complexity This is an important binary search variation where we are not searching for a target directly. Instead, we are searching for the best window position. Perfect for anyone preparing for coding interviews, LeetCode practice, DSA patterns, and mastering modified binary search problems. Hashtags: #leetcode #leetcode658 #findkclosestelements #binarysearch #modifiedbinarysearch #binarysearchpatterns #dsapatterns #datastructures #algorithms #dsa #javaprogramming #codinginterview #codinginterviewprep #interviewpreparation #faangpreparation #placements #leetcodejava #arrayproblems #slidingwindow #numberlineintuition Your Queries: leetcode 658 find k closest elements k closest elements binary search modified binary search arr mid arr mid k binary search left bound find k closest elements java leetcode java solution dsa data structures algorithms coding interview interview preparation faang preparation array problems sliding window sorted array number line intuition binary search patterns leetcode medium placement preparation CHAPTERS 00:00 - Introduction 00:31 - LeetCode 658 - Approach 3 - Theory 23:32 - LeetCode 658 - Approach 3 - Code 33:10 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/2iCR93_SA5c https://www.techtube.co.in/tutorials/day-7890-search-minimum-in-rotated-array-ii-leetcode-81-154-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/1RDFWWjKZUM/maxresdefault.jpg Day 78/90 | 🔥 Search & Minimum in Rotated Array II | LeetCode 81 + 154 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/78_Day Master two important rotated sorted array problems with duplicates using binary search. In this video, we solve: 81. Search in Rotated Sorted Array II 154. Find Minimum in Rotated Sorted Array II Both problems are slightly trickier than their original versions because the array can contain duplicate values. Duplicates create confusion in binary search because sometimes we cannot clearly decide which half is sorted. For example: [1, 0, 1, 1, 1] Here, nums[low], nums[mid], and nums[high] can all be equal, making it difficult to know whether the left half or right half is sorted. In this video, we cover: What changes when duplicates are allowed Why normal rotated binary search is not always enough How duplicate values create ambiguity The role of low, mid, and high How to safely shrink the search space Detailed dry run for Search in Rotated Sorted Array II Detailed dry run for Find Minimum in Rotated Sorted Array II Java code explanation Time and space complexity Why the worst-case time complexity can become O(n) For Search in Rotated Sorted Array II, we learn how to handle the confusing case: if (nums[low] == nums[mid] && nums[mid] == nums[high]) { low++; high--; } For Find Minimum in Rotated Sorted Array II, we learn why this condition is useful: if (nums[mid] greater than nums[high]) { low = mid + 1; } else if (nums[mid] less than nums[high]) { high = mid; } else { high--; } These two problems are perfect for understanding how binary search changes when duplicate values are present. This video is useful for anyone preparing for coding interviews, LeetCode practice, DSA patterns, and mastering modified binary search problems. Hashtags: #leetcode #leetcode81 #leetcode154 #searchinrotatedsortedarray #findminimuminrotatedsortedarray #rotatedsortedarray #binarysearch #modifiedbinarysearch #binarysearchpatterns #duplicatesinarray #arrayproblems #dsapatterns #datastructures #algorithms #dsa #javaprogramming #leetcodejava #codinginterview #codinginterviewprep #interviewpreparation #faangpreparation #placements Your Queries: leetcode 81 leetcode 154 search in rotated sorted array ii find minimum in rotated sorted array ii rotated sorted array with duplicates binary search modified binary search binary search patterns duplicates in binary search array problems leetcode java java solution coding interview dsa data structures algorithms faang preparation placement preparation leetcode medium leetcode hard CHAPTERS 00:00 - Introduction 03:09 - LeetCode 81 - Approach 1 - Theory 47:12 - LeetCode 81 - Approach 1 - Code 51:43 - LeetCode 154 - Approach 1 - Theory 01:19:24 - LeetCode 154 - Approach 1 - Code 01:22:30 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/1RDFWWjKZUM https://www.techtube.co.in/tutorials/day-790-fast-slow-pointers-explained-crack-linked-list-problems-in-on-dsa-pattern-2 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/FguUjuCzhj0/maxresdefault.jpg Day 7/90 |⚡ 🚀 Fast & Slow Pointers Explained | Crack Linked List Problems in O(n) | DSA Pattern #2 Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/1_Day/1_Two_Pointer_Pattern_Theory.excalidraw.svg 🎯 Fast and Slow Pointers Explained — Ace DSA with CTO Bhaiya | Babua DSA Patterns Welcome to Day 7 of the Babua DSA Patterns Course! In this video, we dive into one of the most elegant and intuitive techniques used in coding interviews — the Fast and Slow Pointer Pattern, also known as the Hare and Tortoise algorithm. This pattern is especially effective for solving problems on linked lists, arrays, and other linear data structures. It helps detect cycles, identify midpoints, find starting points of loops, and even deep dive into intersection logic — all in O(n) time and O(1) space. It's a must-know for FAANG and top tech interviews! 📌 What You’ll Learn: What is the Fast and Slow Pointer Pattern? How it differs from the classic Two Pointer Pattern Real-world use cases like: 🔄 Cycle detection in a linked list 🧵 Finding the middle node 🔁 Cycle length detection 🏁 Detecting start of a cycle Hands-on code walkthrough (Java, Python, C++, JavaScript) A reusable template for your interviews 🔧 Code Concept: slow = head fast = head while fast and fast.next: slow = slow.next fast = fast.next.next if slow == fast: print("Cycle detected") break 📚 Concept Notes: This pattern uses two pointers that move at different speeds to analyze the structure, especially useful in linked lists and arrays. The slow pointer moves step-by-step, while the fast pointer jumps, helping identify cycles or midpoints easily. FINAL_2_Fast_Slow_Pointer_Theory 👨‍💻 Instructor: Anuj Kumar 📺 Channel: CTO Bhaiya 🎓 Playlist: Babua DSA Patterns Course 🧩 Difficulty: Easy to Intermediate 🔖 Hashtags: #FastAndSlowPointers #HareAndTortoise #DSAPatterns #LinkedListCycle #CTOBhaiya #BabuaDSA #DSAIn90Days #CodingInterview #FAANGPrep Let’s optimize your code and crack those interviews — one pattern at a time! 💪 📢 Don’t forget to like, subscribe, and share with your DSA buddies! Hashtags: #FastAndSlowPointers #HareAndTortoiseAlgorithm #LinkedListCycle #CycleDetection #MidpointFinder #SlowAndFastPointers #DataStructuresAndAlgorithms #DSAPatterns #BabuaDSAPatterns #CTOBhaiya #DSAIn90Days #CodingInterviewPrep #FAANGInterview #LeetCodeSolutions #LearnDSA #OptimizeYourCode #PythonForDSA #JavaDSA #CppForInterviews #JavaScriptDSA #ProblemSolvingSkills #CrackCodingInterviews #AlgorithmPatterns #CodingForBeginners #EngineerLife Your Queries: Fast and Slow Pointer Hare and Tortoise algorithm Linked list cycle detection Find middle of linked list Cycle detection in linked list Two pointers DSA patterns CTO Bhaiya Babua DSA Patterns Coding interview preparation DSA in 90 days LeetCode cycle detection Data structures and algorithms Optimize code Java Python C++ JavaScript Slow and fast pointers Find cycle length Detect cycle start Coding for beginners CHAPTERS 00:00 Introduction 00:47 Fast and Slow Pointer Pattern Intuition 04:50 Formal Definition 07:20 Usefulness 08:16 Cycle Detection in a Linked List - Brute Force Approach 12:43 Brute Force Code 13:47 Optimised Approach using Fast and Slow Pointer 15:57 Optimised Code 17:36 Why fast meets slow from behind 22:15 Difference between two pointer and fast/slow pointer 25:15 Applications of Fast and slow pointer 28:04 Cycle detection in arrays 31:17 Fast and Slow Pointer Template 33:11 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/FguUjuCzhj0 https://www.techtube.co.in/tutorials/day-7990-theory-binary-search-on-answer-pattern-koko-eating-bananas-leetcode-875-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/hYijEFYyyrw/maxresdefault.jpg Day 79/90 | 🔥 Theory - Binary Search on Answer Pattern 🚀 | Koko Eating Bananas LeetCode 875 🚀#9 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/79_Day In this video, we understand one of the most powerful binary search patterns: Binary Search on Answer, also known as using binary search for optimization problems. Most beginners think binary search is only used on sorted arrays, but that is not true. Binary search can also be used when the answer space is monotonic — where the result follows a pattern like: False False False True True True or True True True False False False We will first build the theory behind optimization problems, then apply it to the famous LeetCode problem Koko Eating Bananas. In Koko Eating Bananas, we are not directly searching for a value inside an array. Instead, we are searching for the minimum eating speed at which Koko can finish all banana piles within the given number of hours. This makes it a classic minimum optimization problem. In this video, you will learn: What is an optimization problem? What does “binary search on answer” mean? How to identify monotonic behavior How to define the search space How to write the isPossible() function Why Koko Eating Bananas is a “first true” binary search problem Complete intuition and dry run Java solution with time and space complexity This pattern is extremely important for coding interviews because it appears in many problems like minimum ship capacity, minimum days to make bouquets, split array largest sum, aggressive cows, and more. Problems covered: Koko Eating Bananas Keep practicing this pattern, because once you understand the theory, many hard-looking optimization problems become much easier to solve. #BinarySearch #BinarySearchOnAnswer #KokoEatingBananas #LeetCode875 #DSA #CodingInterview #JavaDSA #OptimizationProblem #LeetCode #DataStructuresAndAlgorithms Hashtags: #BinarySearch #BinarySearchOnAnswer #KokoEatingBananas #LeetCode875 #OptimizationProblem #DSA #DataStructuresAndAlgorithms #CodingInterview #LeetCodeJava #JavaDSA #BinarySearchPattern #LeetCodeSolutions #CodingInterviewPrep #FAANGPreparation #ProblemSolving #Algorithms #InterviewPreparation #DSAForBeginners #JavaProgramming #CompetitiveProgramming Your Queries: binary search binary search on answer koko eating bananas leetcode 875 koko eating bananas java optimization problems binary search optimization binary search pattern dsa binary search leetcode binary search java dsa coding interview leetcode solutions problem solving algorithms data structures first true binary search minimum optimization problem monotonic search space interview preparation CHAPTERS 00:00 - Introduction 00:30 - Binary Search on Answer Pattern 04:16 - What is optimisation problem 05:48 - Answer space must be monotonic 10:33 - Minimum Answer Pattern 13:55 - Maximum Answer Pattern 17:30 - Four step thinking process 20:05 - What is Monotonic Array 23:20 - LeetCode 875 - Approach 1 - Theory 37:00 - LeetCode 875 - Approach 1 - Theory 46:18 - LeetCode 875 - Approach 2 - Theory 49:01 - LeetCode 875 - Approach 2 - Code 53:30 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/hYijEFYyyrw https://www.techtube.co.in/tutorials/day-8090-leetcode-1802-binary-search-on-answer-made-easy-maximum-value-at-given-index-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/N3E77P_PFjg/maxresdefault.jpg Day 80/90 | 🔥LeetCode 1802: Binary Search on Answer Made Easy | Maximum Value at Given Index 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/80_Day Master the Binary Search on Answer pattern with LeetCode 1802. Maximum Value at a Given Index in a Bounded Array from the Babua DSA Patterns Questions 2025 series. In this video, we solve the problem using two approaches: First, we start with the linear search approach, where we try every possible value at the given index and check whether the array can be built within the given maxSum. This helps build the basic intuition behind the problem. Then, we optimize the solution using binary search, because the answer has a clear monotonic property: if a certain value is possible at the given index, then all smaller values are also possible. We will understand how to calculate the minimum required sum for a chosen value, how the left and right sides of the array contribute to the total sum, and why binary search reduces the time complexity significantly. This problem is very important for understanding: Binary Search on Answer Optimization Problems Monotonic Search Space Array Sum Constraints LeetCode Medium Problems DSA Pattern Recognition Placement and Interview Preparation By the end of this video, you will clearly understand how to move from brute force thinking to an optimized binary search solution. Problem covered: 1802. Maximum Value at a Given Index in a Bounded Array Perfect for students preparing for coding interviews, placements, and mastering DSA patterns step by step. Hashtags: #LeetCode1802 #MaximumValueAtGivenIndex #BoundedArray #BinarySearchOnAnswer #BinarySearch #LinearSearch #DSAPatterns #BabuaDSAPatterns #CodingInterview #PlacementPreparation #LeetCodeMedium #DSA #DataStructuresAndAlgorithms #JavaDSA #Programming #ProblemSolving #InterviewPreparation #CodingForBeginners #FAANGPreparation #SoftwareEngineering #CompetitiveProgramming #DSAForPlacements #BinarySearchPattern #OptimizationProblem #LearnDSA Your Queries: LeetCode 1802 Maximum Value at Given Index Bounded Array Binary Search on Answer Binary Search Linear Search DSA Patterns Babua DSA Patterns 2025 Array Problems Optimization Problems Monotonic Search Space Coding Interview Placement Preparation LeetCode Medium Java DSA Data Structures and Algorithms Problem Solving Interview Preparation FAANG Preparation Competitive Programming DSA for Placements CHAPTERS 00:00 - Introduction 00:36 - LeetCode 1802 - Approach 1 - Theory 48:46 - LeetCode 1802 - Approach 1 - Code 59:23 - LeetCode 1802 - Approach 2 - Theory 01:01:26 - LeetCode 1802 - Approach 2 - Code 01:11:16 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/N3E77P_PFjg https://www.techtube.co.in/tutorials/day-8190-leetcode-hard-2251-sweep-line-binary-search-intuition-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/jyZ7XL0XX8E/maxresdefault.jpg Day 81/90 |🔥LeetCode Hard 2251 | Sweep Line + Binary Search Intuition 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/81_Day In this video, we solve LeetCode 2251. Number of Flowers in Full Bloom using two powerful approaches: TreeMap / Sweep Line and Difference + Binary Search. The problem asks us to find how many flowers are blooming at each person’s arrival time. A flower is blooming if: start less than= person_time less than= end We will first understand the brute force idea, why it gives TLE, and then optimize it using event-based thinking. In the TreeMap approach, we treat every flower start as +1 and every flower end + 1 as -1. Then we process these events in sorted order and maintain the current number of blooming flowers. In the Binary Search approach, we store all start times and end times separately. For each person, we count: flowers started less than= person_time minus flowers ended less than person_time This gives the total flowers in full bloom at that exact time. This problem is a great example of how prefix sum, sweep line, TreeMap, sorting, and binary search can be combined to optimize interval-based problems. Topics covered: TreeMap approach Sweep Line technique Difference array concept Binary Search on sorted start and end times Interval overlap logic LeetCode 2251 explanation Java solution Watch till the end to understand both approaches clearly and learn when to use TreeMap vs Binary Search in interval problems. Problem: 2251. Number of Flowers in Full Bloom Difficulty: Hard Concepts: Sorting, Binary Search, TreeMap, Sweep Line, Prefix Sum, Intervals Hashtags: #LeetCode2251 #NumberOfFlowersInFullBloom #LeetCodeHard #LeetCodeJava #JavaCoding #DSA #DataStructuresAndAlgorithms #BinarySearch #TreeMap #SweepLine #PrefixSum #DifferenceArray #Intervals #CodingInterview #FAANGPreparation #PlacementPreparation #CompetitiveProgramming #AlgorithmTutorial #JavaDSA #LeetCodeSolutions Your Queries: LeetCode 2251 Number of Flowers in Full Bloom LeetCode 2251 Java LeetCode Hard TreeMap approach Sweep Line Difference Array Binary Search Intervals Prefix Sum DSA Java DSA Coding Interview FAANG Preparation Placement Preparation Competitive Programming LeetCode Solutions Algorithm Tutorial Full Bloom Problem Interval Problems CHAPTERS 00:00 - Introduction 00:43 - LeetCode 2251 - Approach 1 - Theory 21:03 - LeetCode 2251 - Approach 1 - Code 42:59 - LeetCode 2251 - Approach 2 - Theory 49:55 - LeetCode 2251 - Approach 2 - Code 56:15 - LeetCode 2251 - Approach 3 - Theory 01:13:45 - LeetCode 2251 - Approach 3 - Code 01:29:50 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/jyZ7XL0XX8E https://www.techtube.co.in/tutorials/day-8290-leetcode-hard-410-split-array-largest-sum-binary-search-on-answer-made-easy-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/JswVtlI9BFI/maxresdefault.jpg Day 82/90 |🔥LeetCode HARD 410: Split Array Largest Sum | Binary Search on Answer Made Easy! 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/82_Day In this video, we solve LeetCode 410: Split Array Largest Sum, one of the most important Binary Search on Answer problems. We first understand the problem statement clearly: given an array and an integer k, we need to split the array into k subarrays such that the largest subarray sum is minimized. We will cover two approaches: Linear Search Approach We try every possible answer from the minimum possible value to the maximum possible value and check which value allows us to split the array into at most k parts. Binary Search on Answer Approach Instead of checking every possible answer, we apply binary search between: max(nums) as the minimum possible answer sum(nums) as the maximum possible answer For every middle value, we check whether it is possible to split the array such that no subarray sum exceeds that value. This problem is a great example of how optimization problems can be converted into decision problems using binary search. Topics covered: Split Array Largest Sum intuition Linear search solution Binary Search on Answer Minimum possible largest sum Feasibility check function Time and space complexity LeetCode 410 Java solution Watch till the end to build strong intuition for Binary Search on Answer problems. #leetcode #binarysearch #dsa #java #codinginterview #datastructures #algorithms #leetcode410 #splitarraylargestsum #placementpreparation Hashtags: #LeetCode410 #SplitArrayLargestSum #BinarySearchOnAnswer #BinarySearch #DSA #DataStructuresAndAlgorithms #LeetCode #JavaDSA #CodingInterview #Programming #Algorithms #InterviewPreparation #PlacementPreparation #FAANGPreparation #ProblemSolving #CompetitiveProgramming #LeetCodeSolutions #BinarySearchProblems #DSAForBeginners #LearnDSA Your Queries: LeetCode 410 Split Array Largest Sum Binary Search on Answer Binary Search DSA Java DSA LeetCode Binary Search Coding Interview Placement Preparation FAANG Preparation Algorithms Data Structures LeetCode Solutions Split Array Largest Sum Java Optimization Problems Minimum Largest Sum Binary Search Problems Interview Questions CHAPTERS 00:00 - Introduction 00:43 - LeetCode 2251 - Approach 1 - Theory 21:03 - LeetCode 2251 - Approach 1 - Code 42:59 - LeetCode 2251 - Approach 2 - Theory 49:55 - LeetCode 2251 - Approach 2 - Code 56:15 - LeetCode 2251 - Approach 3 - Theory 01:13:45 - LeetCode 2251 - Approach 3 - Code 01:29:50 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/JswVtlI9BFI https://www.techtube.co.in/tutorials/day-8390-leetcode-774-minimize-max-distance-to-gas-station-using-binary-search-on-answer-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/-_SOazGc_Yo/maxresdefault.jpg Day 83/90 |🔥LeetCode 774 - Minimize Max Distance to Gas Station Using Binary Search on Answer 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/83_Day In this video, we solve LeetCode 774. Minimize Max Distance to Gas Station using the powerful Binary Search on Answer technique. This is a classic optimization problem where we are given existing gas station positions and need to add k new gas stations such that the maximum distance between adjacent gas stations is minimized. We will understand: What the problem is asking Why normal binary search on array does not apply directly How to identify the answer range How to binary search on a decimal answer How to check if a given maximum distance is possible Why the greedy feasibility check works Time and space complexity analysis This problem is very useful for learning binary search on real numbers, minimization problems, and answer-space binary search patterns often asked in coding interviews. If you are preparing for placements, interviews, or improving your DSA problem-solving skills, this video will help you understand one of the most important binary search patterns in detail. Problem: 774. Minimize Max Distance to Gas Station Approach: Binary Search on Answer + Greedy Check Keep learning. Keep solving. 🚀 #LeetCode #BinarySearch #BinarySearchOnAnswer #DSA #CodingInterview #PlacementPreparation #LeetCode774 #GasStationProblem #Algorithms #DataStructures #Java #Cplusplus #Python #CompetitiveProgramming #InterviewPreparation Hashtags: #LeetCode774 #MinimizeMaxDistanceToGasStation #BinarySearch #BinarySearchOnAnswer #DSA #DataStructuresAndAlgorithms #CodingInterview #PlacementPreparation #InterviewPreparation #LeetCode #Algorithms #GreedyAlgorithm #OptimizationProblem #BinarySearchOnDecimals #CompetitiveProgramming #Java #Cpp #Python #ProblemSolving #DSAForPlacements Your Queries: LeetCode 774 Minimize Max Distance to Gas Station Binary Search Binary Search on Answer Binary Search on Decimals DSA Data Structures and Algorithms Coding Interview Placement Preparation Interview Preparation Greedy Algorithm Optimization Problem LeetCode Binary Search Gas Station Problem Competitive Programming Java DSA C++ DSA Python DSA Problem Solving DSA for Placements CHAPTERS 00:00 - Introduction 00:54 - GFG - Minimize Max Distance to Gas Station - Theory 31:03 - GFG - Minimize Max Distance to Gas Station - Code 50:00 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/-_SOazGc_Yo https://www.techtube.co.in/tutorials/day-8490-leetcode-1231-divide-chocolate-binary-search-on-answer-made-easy-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/RErySMIqjWE/maxresdefault.jpg Day 84/90 |🔥LeetCode 1231: Divide Chocolate | Binary Search on Answer Made Easy 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/84_Day In this video, we solve LeetCode 1231. Divide Chocolate using the Binary Search on Answer approach. This is a very interesting problem where we are given an array representing sweetness levels of chocolate chunks. We need to divide the chocolate into k + 1 pieces such that we maximize the minimum sweetness we can get. Instead of trying every possible partition, we apply binary search on the answer. For every guessed sweetness value, we check whether it is possible to make at least k + 1 pieces where each piece has sweetness greater than or equal to that value. In this video, we will cover: ✅ Problem explanation ✅ Why this is a Binary Search on Answer problem ✅ How to define the search space ✅ Feasibility check using greedy approach ✅ Dry run with example ✅ Time and space complexity ✅ Clean code explanation This problem is useful for understanding patterns like: Binary Search on Answer, Greedy Check, Maximize the Minimum, Partitioning Problems, LeetCode Hard Problems. Time Complexity: O(n log(sum)) Space Complexity: O(1) Watch till the end to understand how to identify and solve similar binary search problems. #LeetCode #BinarySearch #BinarySearchOnAnswer #DivideChocolate #LeetCode1231 #DSA #CodingInterview #Programming #Algorithms #Greedy #PlacementPreparation #CodingProblems #TechInterview #CompetitiveProgramming Hashtags: #LeetCode774 #MinimizeMaxDistanceToGasStation #BinarySearch #BinarySearchOnAnswer #DSA #DataStructuresAndAlgorithms #CodingInterview #PlacementPreparation #InterviewPreparation #LeetCode #Algorithms #GreedyAlgorithm #OptimizationProblem #BinarySearchOnDecimals #CompetitiveProgramming #Java #Cpp #Python #ProblemSolving #DSAForPlacements Your Queries: LeetCode 1231 Divide Chocolate Binary Search on Answer Binary Search Greedy Algorithm Maximize Minimum Sweetness LeetCode Hard DSA Data Structures and Algorithms Coding Interview Google Interview Question Partition Array Chocolate Problem Algorithms Competitive Programming Java Solution C++ Solution Python Solution Placement Preparation FAANG Interview Problem Solving CHAPTERS 00:00 - Introduction 01:28 - LeetCode 1231 - Approach 1 - Theory 28:24 - LeetCode 1231 - Approach 1 - Code 52:15 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/RErySMIqjWE https://www.techtube.co.in/tutorials/day-8590-leetcode-2141-maximum-running-time-of-n-computers-linear-search-to-binary-search-9 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/wpqySLJ8k-c/maxresdefault.jpg Day 85/90 |🔥LeetCode 2141: Maximum Running Time of N Computers | Linear Search to Binary Search 🚀#9 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/85_Day In this video, we explain 2141. Maximum Running Time of N Computers using both Linear Search and Binary Search on Answer. This is a very important problem to understand the idea of checking whether a given answer is possible or not. We will first build the intuition using a simple linear search approach, then optimize it using binary search. We will cover: What the problem is asking Why batteries can be swapped freely Why total available power matters How to check if x minutes of running time is possible Linear search approach Binary search on answer approach Dry run with example Time and space complexity Clean and beginner-friendly explanation The main idea is: For a given time x, each battery can contribute at most x minutes because one computer cannot use more than x minutes from a single battery during that time. So the total usable power becomes: sum(min(battery, x)) If this total usable power is at least: n * x then it is possible to run all n computers for x minutes. This simple condition helps us convert the problem into a binary search on answer problem. Watch the full video to understand the intuition deeply and learn how to move from brute force to optimized binary search. Problem: 2141. Maximum Running Time of N Computers Topic: Binary Search on Answer Difficulty: Hard Language: C++ / Java / Python logic applicable #DSA #BinarySearch #BinarySearchOnAnswer #LeetCode2141 #MaximumRunningTimeOfNComputers #CodingInterview #DataStructuresAndAlgorithms #LeetCodeHard #InterviewPreparation #CTOBhaiya Hashtags: #DSA #BinarySearch #BinarySearchOnAnswer #LeetCode #LeetCode2141 #MaximumRunningTimeOfNComputers #CodingInterview #InterviewPreparation #DataStructuresAndAlgorithms #ProblemSolving #Algorithms #CompetitiveProgramming #LeetCodeHard #DSAForBeginners #PlacementPreparation #SoftwareEngineering #FAANGPreparation #CTOBhaiya Your Queries: maximum running time of n computers leetcode 2141 leetcode 2141 solution binary search on answer binary search dsa maximum running time solution batteries problem leetcode leetcode hard dsa interview questions coding interview preparation algorithms competitive programming linear search binary search approach cto bhaiya CHAPTERS 00:00 - Introduction 00:42 - LeetCode 2141 - Approach 1 - Theory 27:16 - LeetCode 2141 - Approach 1 - Code 39:29 - LeetCode 2141 - Approach 2 - Theory 41:39 - LeetCode 2141 - Approach 2 - Code 46:26 - Proof os distribution 54:34 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/wpqySLJ8k-c https://www.techtube.co.in/tutorials/day-8690-cyclic-sort-pattern-explained-theory-intuition-templates-dsa-pattern-10-sort 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/893E733GVto/maxresdefault.jpg Day 86/90 |⚡🚀 Cyclic Sort Pattern Explained (Theory + Intuition + Templates) | DSA Pattern #10 #sort JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/86_Day 🎯 Cyclic Sort Pattern Explained | O(N) Sorting Trick for Missing & Duplicate Number Problems In this video, we break down the Cyclic Sort Pattern, one of the most powerful DSA patterns for solving problems involving missing numbers, duplicate numbers, and arrays containing values in the range [1...N]. You'll learn why it's called Cyclic Sort, how cycles naturally form in misplaced elements, and how repeatedly placing numbers into their correct positions leads to an elegant O(N) time and O(1) space solution. Instead of memorizing solutions, we'll focus on building strong intuition so you can recognize this pattern instantly in coding interviews. 🧠 What You'll Learn ✅ What is Cyclic Sort? ✅ Why it is called "Cyclic" Sort ✅ The correct index formula: value - 1 ✅ How cycles are formed and removed ✅ Step-by-step walkthrough with examples ✅ Why Cyclic Sort runs in O(N) time ✅ Important termination conditions ✅ Handling duplicates and missing numbers safely ✅ Common interview problems based on this pattern 🔥 Problems Covered by This Pattern Missing Number Find All Missing Numbers Find Duplicate Number Find All Duplicates Set Mismatch First Missing Positive Kth Missing Positive Number ⚠️ Common Mistakes Infinite loops due to duplicate values Blind swapping without validation Ignoring invalid values outside the range [1...N] Confusing Cyclic Sort with general sorting algorithms 🚀 When Should You Use Cyclic Sort? Use this pattern when: ✔ Array contains integers in a limited range (usually 1...N) ✔ Need to find missing numbers ✔ Need to find duplicate numbers ✔ Need O(N) time and O(1) extra space ❌ When NOT to Use Cyclic Sort Non-integer arrays Large or unknown value ranges Stable sorting requirements Multi-attribute sorting problems 🎯 Key Mental Model Every number has a "home" index. Keep sending numbers to their homes until all cycles disappear. This video is part of our DSA Patterns Series, where we focus on understanding the intuition behind patterns instead of memorizing individual problems. 👍 Like • 💬 Comment • 🔔 Subscribe for more DSA pattern breakdowns and coding interview preparation content. #CyclicSort #DSAPatterns #CodingInterviewPrep #DataStructuresAndAlgorithms #MissingNumber #DuplicateNumber #LeetCodePatterns #ProblemSolving #FAANGPreparation #LearnDSA #Algorithms #CompetitiveProgramming #CTOBhaiya Hashtags: #CyclicSort #CyclicSortPattern #DSAPatterns #DataStructuresAndAlgorithms #CodingInterviewPrep #MissingNumber #DuplicateNumber #FirstMissingPositive #SetMismatch #LeetCodePatterns #AlgorithmPatterns #InPlaceSorting #SortingAlgorithms #ProblemSolving #CompetitiveProgramming #FAANGPreparation #TechInterviews #InterviewReady #LearnDSA #DSAForBeginners #JavaDSA #PythonDSA #CppDSA #CodingPatterns #Programming #Algorithms #LeetCodeSolutions #CTOBhaiya #SoftwareEngineering #CodingEducation Your queries: cyclic sort pattern cyclic sort playlist cyclic sort tutorial missing number pattern duplicate number pattern find missing number find duplicate number first missing positive set mismatch problem find all missing numbers find all duplicates array placement techniques in place sorting algorithm o n sorting algorithm dsa patterns playlist coding interview patterns leetcode patterns playlist coding interview preparation faang interview prep dsa advanced dsa playlist programming interview concepts software engineering interview prep problem solving patterns dsa theory and problems coding patterns series technical interview playlist learn dsa step by step array manipulation techniques constant space algorithms leetcode cyclic sort problems cyclic sort interview questions CHAPTERS 00:00 - Introduction 00:42 - I/O in Cyclic Sort 02:52 - What is Cyclic Sort 04:44 - Basic Intuition of Cyclic Sort 09:50 - Correct Index Formula 11:48 - Core Algorithm 16:33 - Template 20:14 - Why is it linear in time 25:57 - When not to use Cyclic Sort 31:50 - Problem Examples 41:36 - Important Termination Check 48:50 - Real world examples 50:41 - Why is it called cyclic sort 56:13 - Conclusion ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/893E733GVto https://www.techtube.co.in/tutorials/day-8790-master-cyclic-sort-in-one-video-3-must-do-leetcode-problems-10 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/MwMARswWjMs/maxresdefault.jpg Day 87/90 |🔥Master Cyclic Sort in One Video | 3 Must-Do LeetCode Problems 🚀#10 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/87_Day In this video, we will master the Cyclic Sort Pattern by solving 3 important interview problems step by step. Cyclic Sort is one of the most useful DSA patterns when the array contains numbers in a fixed range like 0 to n or 1 to n. Instead of using extra space, we place every number at its correct index and then identify what is missing, duplicated, or misplaced. In this video, we will cover: ✅ What is Cyclic Sort? ✅ When should you use Cyclic Sort? ✅ How to identify Cyclic Sort problems in interviews ✅ LeetCode 268: Missing Number ✅ LeetCode 645: Set Mismatch ✅ LeetCode 287: Find the Duplicate Number ✅ Intuition, dry run, and code explanation ✅ Time and space complexity Problems covered: 268. Missing Number Find the missing number from an array containing numbers from 0 to n. 645. Set Mismatch Find the duplicate and missing number in an array from 1 to n. 287. Find the Duplicate Number Find the repeated number without modifying the array and using constant extra space. By the end of this video, you will clearly understand how cyclic sort works and how to apply it to common placement-based array problems. This video is perfect for anyone preparing for coding interviews, DSA practice, LeetCode, FAANG-level interviews, and placement preparation. Useful for: DSA Beginners, Coding Interviews, LeetCode Practice, Pattern-Based DSA, Arrays, Placement Preparation #cyclicsort #missingnumber #setmismatch #findduplicatenumber #leetcode #dsa #datastructures #algorithms #codinginterview #placementpreparation #faangprep #arrayproblems #dsapatterns #ctobhaiya Hashtags: #DSA #BinarySearch #BinarySearchOnAnswer #LeetCode #LeetCode2141 #MaximumRunningTimeOfNComputers #CodingInterview #InterviewPreparation #DataStructuresAndAlgorithms #ProblemSolving #Algorithms #CompetitiveProgramming #LeetCodeHard #DSAForBeginners #PlacementPreparation #SoftwareEngineering #FAANGPreparation #CTOBhaiya Your Queries: cyclic sort missing number set mismatch find duplicate number leetcode 268 leetcode 645 leetcode 287 cyclic sort pattern dsa patterns array problems leetcode arrays coding interview dsa for placements faang prep placement preparation algorithms data structures ctobhaiya leetcode solutions pattern based dsa arrays dsa interview prep CHAPTERS 00:00 - Introduction 01:50 - LeetCode 268 - Approach 1 - Theory 05:06 - LeetCode 268 - Approach 1 - Code 08:20 - LeetCode 268 - Approach 2 - Theory 15:37 - LeetCode 268 - Approach 2 - Code 22:34 - LeetCode 645 - Approach 1 - Theory 30:25 - LeetCode 645 - Approach 1 - Code 37:29 - Cyclic Sort - Theory 39:49 - Cyclic Sort - Code 56:38 - LeetCode 287 - Approach 1 - Theory 01:09:13 - LeetCode 287 - Approach 1 - Code 01:13:35 - LeetCode 287 - Approach 1 - Code #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: leetcode 3266 final array state after k multiplication operations II leetcode heap problems priority queue dsa greedy algorithm leetcode heap interview questions coding interview preparation dsa patterns heap leetcode hard problems array transformation problems competitive programming heap optimize k operations java dsa solutions python heap solution faang interview prep data structures algorithms leetcode explained coding practice problems ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/MwMARswWjMs https://www.techtube.co.in/tutorials/day-8890-cyclic-sort-completed-leetcode-41-448-in-one-video-10 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/fCUAULw43Vs/maxresdefault.jpg Day 88/90 |🔥Cyclic Sort Completed 🔥 | LeetCode 41 & 448 in One Video 🚀#10 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/88_Day Master two important array problems using Set Approach and the powerful Cyclic Sort Pattern. In this video, we solve: 41. First Missing Positive Find the smallest positive integer missing from an unsorted array. 448. Find All Numbers Disappeared in an Array Find all numbers missing from the range 1 to n in an array of size n. We first understand the simple Set-based approach, where we store elements and check which numbers are missing. Then we optimize the solution using Cyclic Sort, which places every number at its correct index and helps us solve these problems in-place. This video will help you understand: How to identify cyclic sort problems Why numbers from 1 to n are usually a strong hint How index mapping works in cyclic sort Difference between extra-space and in-place solutions Step-by-step dry run of both problems Time and space complexity comparison These problems are very important for coding interviews because they teach you how to use array indices smartly without extra space. Perfect for anyone preparing for DSA, LeetCode, coding interviews, and placement preparation. #cyclicsort #firstmissingpositive #findallnumbersdisappearedinanarray #leetcode41 #leetcode448 #dsapatterns #codinginterview #arrays #placements #datastructures #algorithms #faangprep Hashtags: #CyclicSort #FirstMissingPositive #FindAllNumbersDisappeared #LeetCode41 #LeetCode448 #DSA #DSAPatterns #ArrayProblems #LeetCode #CodingInterview #PlacementPreparation #FAANGPrep #DataStructures #Algorithms #ProblemSolving #CodingInterviewPrep #SetApproach #InPlaceSorting #IndexMapping #CTOBhaiya Your Queries: cyclic sort first missing positive find all numbers disappeared in an array leetcode 41 leetcode 448 set approach cyclic sort approach array problems dsa patterns leetcode array problems coding interview prep placement preparation missing number problems in place sorting index mapping arrays dsa faang interview prep data structures algorithms leetcode solutions ctobhaiya CHAPTERS 00:00 - Introduction 01:00 - LeetCode 41 - Approach 1 - Theory 05:32 - LeetCode 41 - Approach 1 - Code 07:48 - LeetCode 41 - Approach 2 - Theory 14:46 - LeetCode 41 - Approach 2 - Code 21:30 - LeetCode 448 - Approach 1 - Theory 23:00 - LeetCode 448 - Approach 1 - Code 26:03 - LeetCode 448 - Approach 2 - Theory 34:11 - LeetCode 448 - Approach 2 - Code 37:45 - Conclusion ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/fCUAULw43Vs https://www.techtube.co.in/tutorials/day-890-5-popular-interview-questions-fast-slow-pointers-pattern-dsa-pattern-2-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/eIItwq8UTmU/maxresdefault.jpg Day 8/90 |⚡ 🚀 5 Popular Interview Questions Fast & Slow Pointers Pattern | | DSA Pattern #2 #dsa Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/8_Day Unlock the power of the Fast and Slow Pointers Pattern — one of the most important and frequently asked techniques in coding interviews for FAANG, product-based companies, and top startups. In this video, we break down the 5 most popular interview questions that use the Hare & Tortoise algorithm. With clear intuition, step-by-step explanation, diagrams, and code walkthroughs, this video will help you master cycle detection, mid-point discovery, and structural analysis of linked lists and arrays. 🚀 What You’ll Learn We will cover these 5 MUST-DO Fast & Slow Pointer problems: Happy Number Learn how fast & slow pointers help detect cycles in number transformations using digit squares. Middle of the Linked List A beautiful application of pointer speeds to find the exact middle in O(n) time & O(1) space. Linked List Cycle I (Cycle Detection) Use Floyd’s Cycle Detection algorithm to check if a loop exists in the linked list. Linked List Cycle II (Start of Cycle) After detecting the cycle, find the exact node where the loop begins — a common FAANG variation. Linked List Cycle Length Once a cycle is found, compute its size using pointer traversal — a powerful extension of the pattern. 🔥 Why This Video Is Important The Fast & Slow Pointers Pattern is one of the most elegant DSA tricks. Mastering these problems will help you crack interview rounds from companies like: ✔ Amazon ✔ Google ✔ Microsoft ✔ Adobe ✔ Flipkart ✔ Uber ✔ Top startups and fintechs You’ll learn: How the Hare & Tortoise algorithm actually works How pointer speeds reveal hidden structures Cycle detection logic Midpoint logic Clean, optimized code approaches 🎯 Who Should Watch? Students preparing for coding interviews Engineers revising DSA fundamentals Learners following the Babua DSA Patterns Course 2025 Anyone who struggles with linked list pattern recognition Hashtags: #FastAndSlowPointers #HareAndTortoiseAlgorithm #CycleDetection #HappyNumber #MiddleOfLinkedList #LinkedListCycle #LinkedListCycleII #CycleLength #TwoPointers #BabuaDSAPatterns #CTOBhaiya #DSAin90Days #DSAPatterns2025 #LeetCode #CodingInterviewPrep #DSAPlaylist #Striver #TakeUForward #ApnaCollege #LoveBabbar #NamasteDev #CodingInterviewQuestions #FAANGPreparation #DataStructuresAndAlgorithms #LearnToCode #DSATutorial #NextGenCTO #CompetitiveProgramming Your Queries: Fast and Slow Pointer Hare and Tortoise algorithm Happy Number explained Middle of linked list Linked list cycle detection Linked list cycle II Detect cycle in linked list Cycle length linked list Floyd cycle detection Fast slow pointer problems DSA patterns Babua DSA Patterns CTO Bhaiya Two pointers LeetCode fast slow pointer Striver Take U Forward Apna College Love Babbar Namaste Dev Coding interview prep DSA playlist FAANG interview preparation CHAPTERS 00:00 Introduction 02:44 202. Happy Number - Theory 14:40 202. Happy Number - Code 20:33 202. Happy Number - Follow up 31:57 876. Middle of the Linked List - Theory 36:00 876. Middle of the Linked List - Theory 37:45 141. Linked List Cycle - Theory 43:16 141. Linked List Cycle - Code 50:39 142. Linked List Cycle II - Theory 01:01:30 142. Linked List Cycle II - Code 01:07:24 Find length of Loop - Theory + Code 01:13:14 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/eIItwq8UTmU https://www.techtube.co.in/tutorials/day-8990-stack-pattern-explained-theory-intuition-dsa-pattern-11-stack 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/4c30w7lmGb0/maxresdefault.jpg Day 89/90 |⚡🚀 Stack Pattern Explained (Theory + Intuition) | DSA Pattern #11 #stack JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/89_Day 🎯 Stack Pattern Explained | Build Intuition, Not Just Solutions | DSA Patterns In this video, we dive deep into the Stack Pattern, one of the most fundamental and powerful patterns used in coding interviews and real-world software systems. Instead of simply learning push and pop operations, we'll focus on the core intuition behind stacks — why they exist, what problem they solve, and how they help optimize brute-force solutions by remembering only the information that might still be useful in the future. You'll learn how stacks help avoid repeatedly revisiting previously processed elements, making them an essential tool for solving many O(N²) problems in O(N) time. 🧠 What You'll Learn ✅ What is a Stack and why does it follow LIFO (Last In, First Out) ✅ Push, Pop, Peek, IsEmpty, and Size operations ✅ Stack Overflow and Stack Underflow ✅ Array-based vs Linked List-based implementation ✅ The real intuition behind stacks ✅ How stacks optimize repeated processing ✅ Understanding "unresolved work" and "pending information" ✅ Why stacks are useful for reverse-order processing ✅ How nested structures naturally lead to stack solutions ✅ Function Call Stack intuition ✅ Undo / Redo systems and browser navigation ✅ Expression evaluation using stacks ✅ Time and Space Complexity of stack operations 🔥 Key Mental Models Covered Stack as a "memory of useful past information" Stack as a container of unresolved work Why the most recently opened item is often the first one resolved How stacks eliminate unnecessary rescanning When a problem naturally follows LIFO behavior 📚 Real-World Applications • Function Call Stack • Browser Back & Forward Navigation • Undo / Redo in Text Editors • Smartphone Call History • Banking Transaction History • Expression Evaluation • Compiler Parsing • Nested Parentheses Validation Use a stack when you see: ✔ Reverse-order processing ✔ Nested structures like (), {}, [] ✔ Need to remember recent elements ✔ Undo / Redo behavior ✔ Expression evaluation ✔ Function call simulation ✔ Repeated backward scanning in brute force solutions ⚡ One-Line Mental Model A stack remembers exactly what the future might need from the past, while discarding everything else. This video is part of our DSA Patterns Series, where we focus on building deep intuition and pattern recognition so you can solve interview questions confidently instead of memorizing solutions. #stack #stackpattern Hashtags: #stack #stackpattern #monotonicstack #dsapatterns #datastructures #algorithms #codinginterviewprep #leetcodepatterns #dsa #faangprep #codinginterview #learncoding #programming #computerscience #softwareengineering #interviewpreparation #codingtips #techinterviews #problemsolving #nextgreaterelement #dailytemperatures #validparentheses #largestrectangleinhistogram #expressionevaluation #postfixevaluation #infixtopostfix #stackdatastructure #competitiveprogramming #leetcode Your queries: stack pattern stack data structure stack pattern explained stack tutorial stack interview questions monotonic stack monotonic stack pattern next greater element daily temperatures valid parentheses balanced parentheses largest rectangle histogram evaluate postfix expression postfix evaluation infix to postfix reverse string using stack stack problems easy to hard dsa patterns coding interview preparation leetcode stack problems data structures and algorithms faang dsa preparation competitive programming software engineering interviews problem solving patterns learn dsa stack theory stack implementation function call stack undo redo system design browser history stack expression evaluation using stack coding interview patterns leetcode patterns technical interview prep cto bhaiya dsa CHAPTERS 00:00 - Introduction 03:02 - What is a stack 04:02 - Real life analogy 05:30 - Why does a stack exist 09:35 - Core Stack operations 12:25 - Stack Errors 16:00 - Stack using arrays - Theory 20:26 - Stack using arrays - Code 30:55 - Stack using Linked Lists - Theory 35:00 - Stack using Linked Lists - Code 42:57 - Why Stack operations are O(1) 44:00 - How to recognise stack problems 56:30 - Real world applications 57:08 - When not to use stack 58:50 - Stack helps O(n^2) to O(n) time complexity 01:15:25 - Conclusion ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/4c30w7lmGb0 https://www.techtube.co.in/tutorials/day-9090-master-stack-pattern-with-3-popular-interview-problems-leetcode-20-1047-2696-11 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/TFKaReXeN_U/maxresdefault.jpg Day 90/90 |🔥Master Stack Pattern with 3 Popular Interview Problems | LeetCode 20, 1047 & 2696 🚀#11 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/90_Day Master three important Stack Pattern problems in this video and understand how stacks help simplify string processing and bracket validation problems. We solve: ✅ Remove All Adjacent Duplicates in String — LeetCode 1047 Learn how to use a stack to remove adjacent duplicate characters efficiently. Whenever the current character matches the top of the stack, we remove it; otherwise, we push it into the stack. ✅ Minimum String Length After Removing Substrings — LeetCode 2696 Understand how to repeatedly remove the substrings "AB" and "CD" using a stack without performing expensive string operations again and again. ✅ Valid Parentheses — LeetCode 20 Learn how to validate different types of brackets using a stack. We push opening brackets and match every closing bracket with the most recent unmatched opening bracket. In this video, you will learn: How to identify problems that require a stack The push-and-pop decision-making pattern How stacks process strings from left to right How to avoid repeated string modification How to validate nested and balanced parentheses Time and space complexity analysis Common mistakes and edge cases How the same stack pattern applies to multiple LeetCode problems These problems are especially useful for understanding the fundamental idea of Last In, First Out, where the most recently processed character is often the first one that needs to be checked or removed. This video is part of the Stack Pattern Series, designed to help you recognise common coding interview patterns instead of memorising individual solutions. Practice Problems: Remove All Adjacent Duplicates in String — LeetCode 1047 Minimum String Length After Removing Substrings — LeetCode 2696 Valid Parentheses — LeetCode 20 Watch the complete video, implement each solution yourself, and revise the problems using the Rule of 4 to strengthen your pattern recognition. Subscribe to CTO Bhaiya for structured DSA explanations, coding interview preparation, LeetCode patterns, system design, and software engineering guidance. #Stack #StackPattern #LeetCode #ValidParentheses #RemoveAdjacentDuplicates #DSA #CodingInterview #DataStructuresAndAlgorithms #ProblemSolving #CTOBhaiya Hashtags: #StackPattern #StackDataStructure #LeetCode #LeetCodeProblems #ValidParentheses #RemoveAdjacentDuplicates #StringProblems #DSA #DataStructures #Algorithms #CodingInterview #CodingInterviewPreparation #ProblemSolving #DSAPatterns #LeetCode20 #LeetCode1047 #LeetCode2696 #FAANGInterview #SoftwareEngineering #CompetitiveProgramming #LearnDSA #CodingTutorial #CTOBhaiya Your Queries: stack pattern stack data structure remove all adjacent duplicates in string leetcode 1047 minimum string length after removing substrings leetcode 2696 valid parentheses leetcode 20 stack problems string stack problems dsa stack questions coding interview preparation leetcode stack problems data structures and algorithms stack approach explained push pop pattern balanced parentheses adjacent duplicates string problems faang interview preparation cto bhaiya CHAPTERS 00:00 - Introduction 01:18 - LeetCode 1047 - Approach 1 - Theory 12:34 - LeetCode 1047 - Approach 2 - Theory 15:54 - LeetCode 1047 - Approach 2 - Code 23:42 - LeetCode 20 - Approach 1 - Theory 38:45 - LeetCode 20 - Approach 2 - Theory 42:23 - LeetCode 20 - Approach 2 - Code 51:49 - LeetCode 2696 - Approach 1 - Theory 01:03:36 - LeetCode 2696 - Approach 2 - Theory 01:06:04 - LeetCode 2696 - Approach 2 - Code 01:15:00 - Conclusion ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/TFKaReXeN_U https://www.techtube.co.in/tutorials/day-91120-master-stack-pattern-leetcode-1249-232-explained-step-by-step-11 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/JphxcJIWtwI/maxresdefault.jpg Day 91/120 |🔥Master Stack Pattern: LeetCode 1249 + 232 Explained Step by Step 🚀#11 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/91_Day Master two important Stack and Queue problems in this video with a clear, step-by-step explanation: ✅ 1249. Minimum Remove to Make Valid Parentheses Learn how to identify and remove unmatched parentheses using a stack so that the final string becomes valid. ✅ 232. Implement Queue Using Stacks Understand how to build a First-In-First-Out (FIFO) queue using two Last-In-First-Out (LIFO) stacks. In this video, we cover: 🔹 Problem intuition and brute-force thinking 🔹 Why the stack data structure is useful 🔹 Optimized approach and implementation 🔹 How to track invalid parentheses 🔹 How two stacks simulate queue operations 🔹 Push, pop, peek and empty operations 🔹 Time and space complexity analysis 🔹 Common mistakes and interview tips These problems will strengthen your understanding of Stacks, Queues, String Processing and Data Structure Design. They are especially useful for coding interviews and platforms such as LeetCode. 📌 Problems covered: LeetCode 1249 — Minimum Remove to Make Valid Parentheses LeetCode 232 — Implement Queue Using Stacks Try solving both problems before watching the complete solution! Subscribe to CTO Bhaiya for more DSA patterns, coding interview preparation, problem-solving techniques and software engineering content. #DSA #LeetCode #Stack #Queue #CodingInterview #DataStructures #ProblemSolving #MinimumRemoveToMakeValidParentheses #ImplementQueueUsingStacks #CTOBhaiya Hashtags: #LeetCode #DSA #DataStructures #Algorithms #Stack #Queue #StackProblems #QueueProblems #CodingInterview #CodingInterviewPreparation #TechnicalInterview #ProblemSolving #LeetCode1249 #LeetCode232 #MinimumRemoveToMakeValidParentheses #ImplementQueueUsingStacks #ParenthesesProblem #StringProblems #DSAInJava #DSAForBeginners #LearnCoding #CompetitiveProgramming #SoftwareEngineer #FAANGInterview #CTOBhaiya Your Queries: LeetCode 1249 Minimum Remove to Make Valid Parentheses LeetCode 232 Implement Queue using Stacks Stack problems Queue problems DSA Data structures and algorithms Coding interview preparation LeetCode stack problems Parentheses problem Valid parentheses Queue using two stacks Stack and queue String problems Interview coding questions DSA for beginners Java DSA C++ DSA Python DSA FAANG interview preparation Competitive programming CTO Bhaiya CHAPTERS 00:00 - Introduction 00:47 - LeetCode 232 - Approach 1 - Theory 20:03 - LeetCode 232 - Approach 1 - Code 30:42 - LeetCode 1249 - Approach 1 - Theory 50:22 - LeetCode 1249 - Approach 1 - Code 58:30 - Conclusion ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/JphxcJIWtwI https://www.techtube.co.in/tutorials/day-92120-what-is-monotonic-stack-master-the-pattern-solve-problems-in-on-11 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/aE3z0kZMxUg/maxresdefault.jpg Day 92/120 |🔥What is Monotonic Stack | Master the Pattern & Solve Problems in O(n) #11 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/92_Day Understand the Monotonic Stack pattern from scratch and learn how it helps solve problems involving the next greater element, next smaller element, previous greater element, and previous smaller element efficiently. In this video, we cover: ✅ What is a monotonic stack? ✅ Increasing vs decreasing monotonic stack ✅ How elements are pushed and removed ✅ Why each element is processed at most twice ✅ Time complexity: O(n) ✅ How to identify monotonic stack problems ✅ Intuition behind the reusable template ✅ Common mistakes and interview tips Monotonic Stack is commonly used in problems like: Next Greater Element Daily Temperatures Stock Span Largest Rectangle in Histogram Trapping Rain Water Sum of Subarray Minimums By the end of this video, you will understand the core intuition behind the pattern and be able to apply it confidently in coding interviews. Subscribe to CTO Bhaiya for more DSA, JavaScript, React and System Design content. #MonotonicStack #DataStructures #Algorithms #DSA #CodingInterview #LeetCode #Stack #ProblemSolving #Programming #CTOBhaiya Hashtags: #LeetCode #DSA #DataStructures #Algorithms #Stack #Queue #StackProblems #QueueProblems #CodingInterview #CodingInterviewPreparation #TechnicalInterview #ProblemSolving #LeetCode1249 #LeetCode232 #MinimumRemoveToMakeValidParentheses #ImplementQueueUsingStacks #ParenthesesProblem #StringProblems #DSAInJava #DSAForBeginners #LearnCoding #CompetitiveProgramming #SoftwareEngineer #FAANGInterview #CTOBhaiya Your Queries: monotonic stack monotonic stack explained monotonic stack tutorial monotonic stack intuition monotonic stack pattern monotonic stack problems increasing monotonic stack decreasing monotonic stack next greater element next smaller element previous greater element previous smaller element stack data structure DSA stack data structures and algorithms LeetCode stack problems coding interview preparation DSA interview questions Java DSA C++ DSA Python DSA CTO Bhaiya CHAPTERS 00:00 - Introduction 00:30 - What is a Monotonic Stack 03:35 - Intuition 17:35 - Next Greater Element - Template 24:25 - Why store indexes 26:30 - Time & Space Complexity 27:50 - Monotonic Stack Identification 30:15 - Conclusion ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/aE3z0kZMxUg https://www.techtube.co.in/tutorials/day-93120-4-popular-monotonic-stack-problems-11 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/8IPwbIdLjnY/maxresdefault.jpg Day 93/120 |🔥4 Popular Monotonic Stack Problems #11 JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/93_Day Master the four essential Monotonic Stack patterns: ✅ Next Greater Element ✅ Next Smaller Element ✅ Previous Greater Element ✅ Previous Smaller Element In this video, we build the intuition behind each pattern, understand when to traverse from left to right or right to left, and learn how a stack reduces the time complexity from O(n²) to O(n). These patterns form the foundation for solving problems like: Daily Temperatures Stock Span Largest Rectangle in Histogram Trapping Rain Water Sum of Subarray Minimums Next Greater Element By the end of the video, you will be able to identify the correct monotonic stack pattern and implement it confidently. #MonotonicStack #DataStructures #DSA #CodingInterview #NextGreaterElement #Stack #LeetCode #PlacementPreparation Hashtags: #LeetCode #DSA #DataStructures #Algorithms #Stack #Queue #StackProblems #QueueProblems #CodingInterview #CodingInterviewPreparation #TechnicalInterview #ProblemSolving #LeetCode1249 #LeetCode232 #MinimumRemoveToMakeValidParentheses #ImplementQueueUsingStacks #ParenthesesProblem #StringProblems #DSAInJava #DSAForBeginners #LearnCoding #CompetitiveProgramming #SoftwareEngineer #FAANGInterview #CTOBhaiya Your Queries: next greater element next smaller element previous greater element previous smaller element monotonic stack monotonic stack patterns stack data structure next greater element using stack next smaller element using stack previous greater element using stack previous smaller element using stack monotonic increasing stack monotonic decreasing stack dsa stack problems stack interview questions leetcode stack problems coding interview preparation data structures and algorithms dsa for placements competitive programming next greater element leetcode daily temperatures stock span problem largest rectangle in histogram sum of subarray minimums cto bhaiya CHAPTERS 00:00 - Recap of Monotonic Stack 01:57 - Next Greater Elements - Theory 03:20 - Next Greater Elements - Code 18:10 - Next Smaller Elements - Theory 21:38 - Next Smaller Elements - Code 23:10 - Prev Greater Elements - Theory 29:50 - Prev Greater Elements - Code 32:20 - Prev Smaller Elements - Theory 34:06 - Prev Smaller Elements - Code 36:18 - Conclusion ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== WHATSAPP Community Link: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/8IPwbIdLjnY https://www.techtube.co.in/tutorials/day-94120-2-popular-monotonic-stack-problems-11 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/YDiqKnNqOTU/maxresdefault.jpg Day 94/120 |🔥2 Popular Monotonic Stack Problems #11 Platform link: https://app.nextgen-cto.in/login JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/93_Day In this video, we continue learning the Monotonic Stack pattern with two important problems: Daily Temperatures and Next Greater Element I. Instead of checking every element against all the elements after it, we’ll see how a monotonic stack helps us efficiently find the next greater element in O(n) time. Problems Covered 🔥 Daily Temperatures Understand the brute-force approach Why nested loops can become inefficient How to maintain a monotonic decreasing stack Find how many days we need to wait for a warmer temperature Understand why we store indices instead of values 🚀 Next Greater Element I Understand the Next Greater Element concept Use a monotonic stack to find the next greater value Precompute answers using a HashMap Understand how the same pattern can be reused across different problems What You’ll Learn What is a Monotonic Stack Monotonic decreasing stack intuition When to push and pop elements from the stack How to identify Next Greater Element problems Why every element is pushed and popped at most once How monotonic stacks reduce O(n²) solutions to O(n) These problems are extremely useful for understanding the foundation of the Next Greater / Next Smaller Element pattern, which appears frequently in coding interviews and DSA problems. 📌 Problems: LeetCode 739 — Daily Temperatures LeetCode 496 — Next Greater Element I If you're following the Babua DSA Patterns Course, make sure you solve both problems yourself after understanding the pattern. Keep practicing. Don’t memorize the solution — understand why the stack works. 🚀 #DSA #MonotonicStack #DailyTemperatures #NextGreaterElement #LeetCode #CodingInterview #DataStructures #Algorithms #PlacementPreparation #CTOBhaiya #MonotonicStack #DailyTemperatures #NextGreaterElement #NextGreaterElementI #LeetCode #LeetCode739 #LeetCode496 #DSA #DataStructures #Algorithms #DSAProblems #CodingInterview #InterviewPreparation #PlacementPreparation #CodingProblems #ProblemSolving #StackDataStructure #MonotonicStackPattern #DSAPatterns #CompetitiveProgramming #JavaDSA #CPlusPlusDSA #PythonDSA #SoftwareEngineer #SDEPreparation #TechInterview #CodingForBeginners #BabuaDSA #CTOBhaiya #NextGenCTO Your Queries: monotonic stack daily temperatures next greater element next greater element i leetcode 739 leetcode 496 monotonic stack pattern stack data structure dsa dsa patterns leetcode problems coding interview placement preparation data structures and algorithms next greater element problem daily temperatures leetcode stack interview questions sde interview preparation coding problems problem solving competitive programming babua dsa cto bhaiya nextgen cto CHAPTERS 00:00 - Intro 01:14 - 739 - Daily Temperatures - BFA (Theory) 08:20 - 739 - Daily Temperatures - BFA to Optmised 14:21 - 739 - Daily Temperatures - Optimised (Theory) 23:03 - 739 - Daily Temperatures - Optimised (Code) 34:00 - 496 - Next Greater Element I - Theory 45:35 - 496 - Next Greater Element I - Code 56:04 - Map Optimisation Approach 59:35 - Conclusion ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== WHATSAPP Community Link: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/YDiqKnNqOTU https://www.techtube.co.in/tutorials/day-95120-503-next-greater-element-ii-11 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/kKU5WoDp7Zc/maxresdefault.jpg Day 95/120 | 🔥503. Next Greater Element II #11 Platform link: https://app.nextgen-cto.in/login JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/95_Day In this video, we solve Next Greater Element II using the Monotonic Stack pattern. Unlike the standard Next Greater Element problem, the array here is circular. That means after reaching the last element, we can continue searching from the beginning of the array. We’ll understand how to simulate a circular array without actually creating a second array, and how a monotonically decreasing stack helps us find the next greater element efficiently. Topics Covered Understanding Next Greater Element II What makes a circular array different The 2 × n traversal trick Using modulo % n for circular indexing Monotonic decreasing stack intuition When to push elements into the stack Step-by-step dry run Brute-force vs optimized approach Time and Space Complexity Key Idea Instead of physically creating the array twice, we iterate from: 2n - 1 → 0 and access elements using: nums[i % n] For every element, we remove all elements from the stack that are smaller than or equal to the current element. The element remaining at the top of the stack becomes the Next Greater Element. Complexity Time Complexity: O(n) Space Complexity: O(n) Even though we iterate roughly 2n times, each element is pushed and popped from the stack only a limited number of times. This problem is an important variation of the Monotonic Stack pattern and also helps build intuition for solving problems involving circular arrays. If you're preparing for coding interviews, placements, or practicing DSA patterns, understanding this approach will help you recognize many similar stack-based problems. #DSA #MonotonicStack #NextGreaterElement #NextGreaterElementII #LeetCode #Stack #DataStructures #CodingInterview #PlacementPreparation #DSAPatterns #CTOBhaiya #NextGreaterElementII #NextGreaterElement #MonotonicStack #Stack #DSA #DSAPatterns #LeetCode #LeetCodeDaily #LeetCodeProblems #CodingInterview #CodingInterviewPreparation #PlacementPreparation #DataStructures #Algorithms #CircularArray #StackProblems #DSAInterviewQuestions #CompetitiveProgramming #ProblemSolving #Coding #Programming #SoftwareEngineering #SDEPreparation #FAANGPreparation #CTOBhaiya Your Queries: Next Greater Element II Next Greater Element 2 Next Greater Element II LeetCode Next Greater Element II solution Monotonic Stack Monotonic Stack problems Stack DSA Stack problems Circular Array Circular Array DSA LeetCode 503 LeetCode Stack Problems DSA Patterns DSA Interview Questions Coding Interview Preparation Placement Preparation Data Structures and Algorithms SDE Interview Preparation FAANG DSA Competitive Programming Next Greater Element using Stack CTO Bhaiya CHAPTERS 00:00 - Intro 01:14 - 739 - Daily Temperatures - BFA (Theory) 08:20 - 739 - Daily Temperatures - BFA to Optmised 14:21 - 739 - Daily Temperatures - Optimised (Theory) 23:03 - 739 - Daily Temperatures - Optimised (Code) 34:00 - 496 - Next Greater Element I - Theory 45:35 - 496 - Next Greater Element I - Code 56:04 - Map Optimisation Approach 59:35 - Conclusion ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== WHATSAPP Community Link: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/kKU5WoDp7Zc https://www.techtube.co.in/tutorials/day-96120-monotonic-stack-finally-makes-sense-maximum-width-ramp-next-greater-element-iv-11 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/j80XieO_1kE/maxresdefault.jpg Day 96/120 | 🔥Monotonic Stack Finally Makes Sense! Maximum Width Ramp + Next Greater Element IV #11 Sheet link: https://app.nextgen-cto.in/login JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/96_Day In this video, we’ll understand how Monotonic Stack helps solve problems where we need to efficiently find relationships between elements across an array. We’ll solve two interesting problems: 🔥 Maximum Width Ramp Learn how a strictly decreasing monotonic stack helps us store only the useful candidate indices and why traversing the array from the right side guarantees that we maximize the width j - i. 🔥 Next Greater Element IV We’ll extend the idea of Next Greater Element and understand how monotonic stack properties can be used to find the second greater element efficiently. More importantly, instead of just memorizing the solutions, we’ll focus on the intuition: ✅ Why monotonic stacks work ✅ What information the stack actually stores ✅ Why some elements can safely be ignored ✅ How traversal direction affects the answer ✅ How to recognize monotonic stack patterns in new problems ✅ How Maximum Width Ramp differs from traditional Next Greater Element problems If monotonic stack problems feel like tricks, this video will help you understand the underlying pattern so that the solutions start feeling much more natural. 📚 Practice the problems along with the video and try deriving the stack property before looking at the complete solution. 🚀 Keep practicing. Keep identifying patterns. DSA becomes much easier once you start seeing the structure behind the problems. #DSA #MonotonicStack #MaximumWidthRamp #NextGreaterElement #NextGreaterElementIV #Stack #DataStructures #Algorithms #LeetCode #CodingInterview #DSAPatterns #PlacementPreparation #CTOBhaiya #MaximumWidthRamp #NextGreaterElementIV #MonotonicStack #MonotonicStackProblems #StackProblems #DSA #DSAProblems #DSAInterviewQuestions #DataStructuresAndAlgorithms #LeetCode #LeetCodeProblems #CodingInterview #CodingInterviewPreparation #PlacementPreparation #SoftwareEngineer #ProblemSolving #Algorithms #StackDataStructure #NextGreaterElement #DSAPatterns #CTOBhaiya #CodingForPlacements #FAANGPreparation #InterviewPreparation #CompetitiveProgramming Your Queries: maximum width ramp next greater element iv monotonic stack monotonic stack problems maximum width ramp leetcode next greater element 4 leetcode 962 leetcode 2454 stack problems dsa dsa problems dsa interview questions data structures and algorithms coding interview interview preparation placement preparation leetcode problems next greater element stack data structure dsa patterns competitive programming cto bhaiya coding for placements faang preparation CHAPTERS 00:00 - Intro 00:53 - 962 - Maximum Width Ramp - BFA (Theory) 08:59 - 962 - Maximum Width Ramp - BFA (Code) 13:21 - 962 - Maximum Width Ramp - Optimised (Theory) 29:00 - 962 - Maximum Width Ramp - Optimised (Code) 37:46 - Monotonic Stack in depth 44:21 - 2454 - Next Greater Element IV - BFA (Theory) 50:00 - 2454 - Next Greater Element IV - BFA (Code) 56:00 - 2454 - Next Greater Element IV - Optimised (Theory) 01:05:44 - 2454 - Next Greater Element IV - Optimised (Code) 01:17:35 - Conclusion ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/anuj.kumar.codes?igsh=MXdyY3BqcnVzaWw3Zw== WHATSAPP Community Link: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/j80XieO_1kE https://www.techtube.co.in/tutorials/day-990-3-popular-interview-questions-fast-slow-pointers-pattern-dsa-pattern-2-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/E85jp_rHivc/maxresdefault.jpg Day 9/90 |⚡ 🚀 3 Popular Interview Questions Fast & Slow Pointers Pattern | | DSA Pattern #2 #dsa Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/9_Day In this video, we break down the 3 most popular and high-impact interview problems that brilliantly use the Hare & Tortoise algorithm. With crystal-clear intuition, diagrams, and code walkthroughs, you'll learn how to use pointer speeds to detect structures, split circular lists, and identify duplicates — all in O(n) time and O(1) space. 🚀 What You’ll Learn We will cover these 3 MUST-DO Fast & Slow Pointer problems: 1. Split a Circular Linked List Into Two Halves Use fast and slow pointers to find the midpoint of a circular linked list and divide it into two equal (or nearly equal) halves — a common question in linked list rounds. 2. Palindrome Linked List Check whether a linked list is a palindrome by finding the middle, reversing the second half, and comparing both halves efficiently. 3. Find the Duplicate Number Understand how Floyd’s Cycle Detection algorithm applies to arrays by treating index → value transitions as pointers. Fast and slow pointers reveal the duplicate without modifying the array. 🔥 Why This Video Is Important These 3 problems cover all major applications of the Fast & Slow Pointer pattern: Midpoint discovery Cycle detection in arrays Structural analysis of linked lists Efficient O(1) space techniques Real FAANG-style insights Mastering them will greatly boost your chances in interview rounds at: You will understand: How Hare & Tortoise logic exposes hidden patterns How cycle detection works on arrays How to split circular linked lists correctly How to verify palindromes in linked lists without extra space 🎯 Who Should Watch? Students preparing for coding interviews Engineers revising core DSA Learners following the Babua DSA Patterns Course 2025 Anyone who wants deep intuition on linked list & array pointer tricks Hashtags: #FastAndSlowPointers #FloydCycleDetection #HareAndTortoise #SplitCircularLinkedList #PalindromeLinkedList #FindDuplicateNumber #DSAPatterns #BabuaDSAPatterns #CodingInterviewPrep #FAANGInterviews #LinkedListProblems #LeetCodeDSA #TwoPointers #PointerAlgorithms #CTOBhaiya #NextGenCTO #DSAin90Days #CrackCodingInterviews #Striver #TakeUForward #ApnaCollege #LoveBabbar #NamasteDev #CompetitiveProgramming #DataStructuresAndAlgorithms Your Queries Fast and Slow Pointer Hare and Tortoise algorithm Happy Number explained Middle of linked list Linked list cycle detection Linked list cycle II Detect cycle in linked list Cycle length linked list Floyd cycle detection Fast slow pointer problems DSA patterns Babua DSA Patterns CTO Bhaiya Two pointers LeetCode fast slow pointer Striver Take U Forward Apna College Love Babbar Namaste Dev Coding interview prep DSA playlist FAANG interview preparation CHAPTERS 00:00 Introduction 01:01 Split a Linked List into Two Halves - Theory 12:22 Split a Linked List into Two Halves - Code 19:09 287. Find the duplicate Number - Approach 1 - Theory 23:00 287. Find the duplicate Number - Approach 1 - Code 24:57 287. Find the duplicate Number - Approach 2 - Theory 32:00 287. Find the duplicate Number - Approach 2 - Code 41:17 234. Palindrome Linked List - Approach 1 - Theory 43:48 234. Palindrome Linked List - Approach 1 - Code 45:40 234. Palindrome Linked List - Approach 2 - Theory 53:26 234. Palindrome Linked List - Approach 2 - Code 58:10 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: Fast and slow pointers Hare and Tortoise algorithm Floyd cycle detection Split circular linked list Palindrome linked list Find duplicate number Cycle detection array Linked list midpoint DSA patterns Babua DSA Patterns CTO Bhaiya LeetCode problems Coding interview preparation FAANG interview prep Striver Take U Forward Apna College Love Babbar Namaste Dev DSA playlist Linked list cycle logic Two pointer technique ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ============== https://www.youtube.com/embed/E85jp_rHivc https://www.techtube.co.in/tutorials/decode-string-leetcode-394-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/qB0zZpBJlh8/maxresdefault.jpg Decode String - Leetcode 394 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/decode-string 0:00 - Read the problem 3:45 - Drawing Explanation 12:07 - Coding Explanation leetcode 394 #decode #string #python https://www.youtube.com/embed/qB0zZpBJlh8 https://www.techtube.co.in/tutorials/decode-ways-dynamic-programming-leetcode-91-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/6aEyTjOwlJU/maxresdefault.jpg Decode Ways - Dynamic Programming - Leetcode 91 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/decode-ways 0:00 - Read the problem 2:23 - Drawing Explanation 10:14 - Coding Explanation leetcode 91 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/6aEyTjOwlJU https://www.techtube.co.in/tutorials/delete-leaves-with-a-given-value-leetcode-1325-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/FqAoYAwbwV8/maxresdefault.jpg Delete Leaves With a Given Value - Leetcode 1325 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/delete-leaves-with-a-given-value 0:00 - Read the problem 1:12 - Drawing Explanation 1 5:23 - Coding Solution 1 6:46 - Drawing Explanation 2 11:05 - Coding Solution 2 leetcode 1325 #neetcode #leetcode #python https://www.youtube.com/embed/FqAoYAwbwV8 https://www.techtube.co.in/tutorials/delete-middle-element-of-a-stack 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/oCcUNRMl7dA/maxresdefault.jpg Delete Middle Element of a Stack Delete Middle Element of a Stack Using Recursion. The Notes that I taught in the video and the Working Code (if any) will be available on my Patreon page under the "Notes, Code And Support" tier. Link: https://www.patreon.com/adityaVerma Video Pdf Notes: https://www.patreon.com/posts/38641316 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/oCcUNRMl7dA https://www.techtube.co.in/tutorials/delete-node-in-a-bst-leetcode-450-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/LFzAoJJt92M/maxresdefault.jpg Delete Node in a BST - Leetcode 450 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Solving Leetcode 450 - Delete Node in a BST. 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/delete-node-in-a-bst 0:00 - Read the problem 0:50 - Drawing Explanation 8:53 - Coding Explanation leetcode 450 #neetcode #leetcode #python https://www.youtube.com/embed/LFzAoJJt92M https://www.techtube.co.in/tutorials/design-add-and-search-words-data-structure-leetcode-211-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/BTf05gs_8iU/maxresdefault.jpg Design Add and Search Words Data Structure - Leetcode 211 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/design-word-search-data-structure 0:00 - Read the problem 3:13 - Drawing Explanation 11:08 - Coding Explanation leetcode 211 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #trie #prefix #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/BTf05gs_8iU https://www.techtube.co.in/tutorials/design-circular-queue-leetcode-622-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/aBbsfn863oA/maxresdefault.jpg Design Circular Queue - Leetcode 622 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/design-circular-queue 0:00 - Read the problem 3:00 - Drawing Explanation 8:50 - Coding Explanation leetcode 108 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #airbnb #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/aBbsfn863oA https://www.techtube.co.in/tutorials/design-hashmap-leetcode-706-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/cNWsgbKwwoU/maxresdefault.jpg Design Hashmap - Leetcode 706 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/design-hashmap 0:00 - Read the problem 0:50 - Drawing Explanation 7:45 - Coding Explanation leetcode 706 #neetcode #leetcode #python https://www.youtube.com/embed/cNWsgbKwwoU https://www.techtube.co.in/tutorials/design-hashset-leetcode-705-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/VymjPQUXjL8/maxresdefault.jpg Design HashSet - Leetcode 705 - Python Solving Leetcode 705 - Design hashset, today's daily leetcode on may 29. 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/design-hashset 0:00 - Read the problem 1:25 - Drawing Explanation 6:35 - Coding Explanation leetcode 705 #neetcode #leetcode #python https://www.youtube.com/embed/VymjPQUXjL8 https://www.techtube.co.in/tutorials/design-min-stack-amazon-interview-question-leetcode-155-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/qkLl7nAwDPo/maxresdefault.jpg Design Min Stack - Amazon Interview Question - Leetcode 155 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/minimum-stack 0:00 - Read the problem 1:00 - Drawing Explanation 5:22 - Coding Explanation leetcode 155 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #amazon #stack #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/qkLl7nAwDPo https://www.techtube.co.in/tutorials/design-systems-like-a-senior-engineer-full-course 2026-09-04 weekly 0.7 https://i.ytimg.com/vi/vOn6wUcOXzI/maxresdefault.jpg Design Systems Like a Senior Engineer (Full Course) Become a senior software engineer with a job guarantee: https://go.hayksimonyan.com/177-system-design-interviews Most engineers fail system design interviews for the same reason. They memorize a few architectures and hope the interviewer asks about one of them. That's gambling. This is the complete system design interview guide. One framework, applied to real production style systems, from a clean sheet of paper to something that could actually handle millions of users. You'll learn the exact 5 step process to structure any system design answer under time pressure, the 5 things interviewers are actually scoring you on (most of which have nothing to do with the diagram you draw), and then watch that framework applied live across 3 designs: a music streaming platform, a hotel booking system that has to solve double booking under real concurrency, and a messaging app built to handle 10 billion messages a day. If system design interviews are the wall standing between you and a senior offer, this video is for you! Timestamps: 0:00 Why System Design Matters Section 1: System Design Framework 1:52 Interview Formats Overview 8:50 The 5 Step Framework 18:24 Tradeoffs and Extensions Section 2: System #1 23:31 Requirements and Capacity Planning 29:00 Architecture and Data Flows 34:59 API Design 39:40 Storage and Schema Design 44:13 Scaling to Millions Section 3: System #2 50:28 Non-Functional Targets 57:58 Capacity Math and Architecture 1:10:38 API Design and Idempotency 1:22:10 Data Modeling and Inventory Logic 1:32:41 Concurrency and Race Conditions 1:34:20 Sharding, Caching and Scaling 1:40:17 Search at Scale (Elasticsearch) 1:44:55 Replication and Global Routing Section 4: System #3 1:50:21 Scale Estimation 1:56:14 Architecture and Real Time Communication 2:06:40 Data Modeling and API Flows 2:12:46 Multi Device Sync and Offline Delivery 2:22:13 Fanout, Media Storage and CDN Delivery 2:31:20 Event Driven Architecture and Batch Processing 2:38:54 Encryption and Rate Limiting 2:49:21 Sharding and Cleanup Jobs 2:57:29 Failure Handling and Global Scaling 3:08:44 Feature Flags and Rollouts 3:10:50 How to Actually Get Better https://www.youtube.com/embed/vOn6wUcOXzI https://www.techtube.co.in/tutorials/design-twitter-leetcode-355-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/pNichitDD2E/maxresdefault.jpg Design Twitter - Leetcode 355 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Python Code: https://github.com/neetcode-gh/leetcode/blob/main/355-Design-Twitter.py Problem Link: https://neetcode.io/problems/design-twitter-feed 0:00 - Read the problem 1:30 - Drawing Explanation 12:06 - Coding Explanation leetcode 355 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #design #twitter #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/pNichitDD2E https://www.techtube.co.in/tutorials/detect-squares-leetcode-weekly-contest-problem-2013-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/bahebearrDc/maxresdefault.jpg Detect Squares - Leetcode Weekly Contest - Problem 2013 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/count-squares 0:00 - Read the problem 1:40 - Drawing Explanation 6:18 - Coding Explanation leetcode 2013 #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/bahebearrDc https://www.techtube.co.in/tutorials/devops-full-course-for-beginners-2025-git-docker-cicd-aws-kubernetes-part-1 2026-08-19 weekly 0.7 https://i.ytimg.com/vi/Tq0vZU7Hp_M/maxresdefault.jpg DevOps Full Course for Beginners 2025 | Git, Docker, CI/CD, AWS, Kubernetes | Part 1 ⭐▬▬▬▬▬▬ TIMESTAMPS 👋 ▬▬▬▬▬▬⭐ 00:00 Introduction 07:03 What is DevOps 14:20 DevOps Lifecycle 22:52 Linux in DevOps 38:58 Shell scripting 50:38 Project overview 57:50 Git & Github 01:58:32 Environment management 02:14:57 Docker 02:54:15 Docker Compose 03:07:05 Continuous Integration (CI) 03:21:12 Github actions, ESlint and Prettier 03:46:25 AWS EC2 Deployment 04:20:25 Continuous Deployment (CD) 04:39:00 Kubernetes Welcome to Part 1 of the DevOps Full Course 2025 🚀.In this video, we’re starting from the very basics and slowly building our way up to real-world DevOps practices. 📝 What You’ll Learn in Part 1 : What is DevOps? Why DevOps is needed in modern software development Linux basics for DevOps engineers Shell scripting for automation Git & GitHub fundamentals: install, init, add/commit, branching, push/pull Environment management (dev, staging, production explained) Docker basics: images, containers, Dockerfile (Node + React example) Docker Compose to run full MERN stack (frontend, backend, database) CI with GitHub Actions (linting & build pipeline) AWS deployment overview Intro to Kubernetes (pods, deployments, services, Minikube setup) https://www.youtube.com/embed/Tq0vZU7Hp_M https://www.techtube.co.in/tutorials/diameter-of-binary-tree-leetcode-543-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/K81C31ytOZE/maxresdefault.jpg Diameter of Binary Tree - Leetcode 543 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/binary-tree-diameter 0:00 - Read the problem 0:30 - Drawing Explanation 4:40 - Coding Explanation leetcode 543 #neetcode #leetcode #python https://www.youtube.com/embed/K81C31ytOZE https://www.techtube.co.in/tutorials/disclaimer-no-controversy 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/vJ2xa878E-M/maxresdefault.jpg Disclaimer: NO CONTROVERSY!!! Sheet Link: https://app.nextgen-cto.in/login Onboarding Sheet: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/ONBOARDING.md Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/we_need_to_talk.svg 💬 “We Need To Talk.” Because this isn’t just another DSA course — it’s a revolution in how you learn coding patterns. 🔥 Babua DSA Patterns Course 2025 is a free-premium, community-driven program designed to make you truly interview-ready. With 90 hours of structured content, 500+ LeetCode video solutions, and a hand-made GitHub repo, this course will help you unlock the power of patterns — the shortcut behind 80% of coding problems. 🎯 What You’ll Learn: Master 30+ DSA Patterns (Two Pointers, Sliding Window, Recursion, DP, and more) Build strong intuition instead of rote-memorizing questions Learn in your preferred language — Java, C++, Python, or JavaScript Prepare for FAANG and top product company interviews Create your LinkedIn presence and personal audience along the way 💡 Why This Course Is Different: 100% Free & Open Source (Check the GitHub Repo ) Based on real FAANG patterns, not random problems Encourages community learning — build groups, discuss syntax, and grow together No need to buy another DSA course after this one 📅 Timeline: 🧠 90 Days of Consistent Learning 🧾 Daily Notes + Video Links 💻 Fresh recordings in Babua Style 📊 Public leaderboard & progress tracking 👨‍🏫 Instructor: Anuj Kumar (a.k.a CTO Bhaiya) 🎥 YouTube Channel: CTO Bhaiya 🧾 GitHub Repo: Babua DSA Patterns Course ❤️ Join the Mission: Comment “Support” if you’re joining the #BabuaDSAPatterns revolution. Like, share, and post your daily progress on LinkedIn using #BabuaDSA2025 — let’s make coding viral again. CHAPTERS 00:00 Introduction 00:43 Free & Premium Course 05:08 Why should we post on LinkedIn 06:14 Course Onboarding 06:55 Onboarding Sheet 09:04 C++/Java/Python/Javascript 11:18 Babua DSA Patterns Completion Date 15:10 Conclusion Hashtags: #DSAPatterns #BabuaDSA2025 #CTOBhaiya #CodingInterviewPrep #FAANGPreparation #DSAin90Days #LearnCoding #DataStructuresAndAlgorithms #SystemDesignForBeginners #JavaDSA #CPlusPlusDSA #PythonForDSA #JavaScriptForDSA #BabuaStyleLearning #CodingChallenge2025 #LeetCodePractice #InterviewPatterns #TwoPointersPattern #DynamicProgramming #SlidingWindowPattern #CodingForBeginners #MasterDSA #CodeWithCTOBhaiya #EngineerLife #TechCareer #CodingCommunity #SoftwareEngineering #LinkedInLearning #GitHubProjects #OpenSourceEducation #BuildInPublic #CodingMotivation #CodingRevolution #Striver #TakeUForward #ApnaCollege #LoveBabbar #NishantChahar #NamasteDev #CodeHelp #DSACommunity #CodingJourney #IndianCoders #FAANGInterviewPrep #BabuaPatternCourse #LearnWithCTOBhaiya Your Queries: Babua DSA Patterns Course 2025 DSA in 90 Days CTO Bhaiya Free DSA Course Coding Interview Preparation FAANG Preparation LeetCode Patterns Striver Take U Forward Apna College Love Babbar Nishant Chahar Namaste Dev Java DSA C++ DSA Python DSA JavaScript DSA Coding Challenge 2025 Two Pointers Pattern Dynamic Programming Sliding Window Open Source DSA Learn Coding Free Coding Revolution Babua Style Learning CHAPTERS 00:00 Introduction 01:20 Two Pointer Pattern Intuition 03:29 Definition 08:26 Valid Palindrome - Brute Force Approach 14:16 Valid Palindrome - Optimised Approach 17:04 Why use two pointer 26:50 Templates 32:40 Next Two Videos 33:51 Course Onboarding 36:00 Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/vJ2xa878E-M https://www.techtube.co.in/tutorials/distinct-subsequences-dynamic-programming-leetcode-115-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/-RDzMJ33nx8/maxresdefault.jpg Distinct Subsequences - Dynamic Programming - Leetcode 115 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/count-subsequences 0:00 - Read the problem 1:05 - Drawing Explanation 9:00 - Coding Explanation leetcode 115 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #twitter #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/-RDzMJ33nx8 https://www.techtube.co.in/tutorials/docker-tutorial-for-beginners-complete-one-shot 2026-08-19 weekly 0.7 https://i.ytimg.com/vi/exmSJpJvIPs/maxresdefault.jpg Docker Tutorial for beginners - Complete One Shot PDF Link for all Docker Commands : https://www.apnacollege.in/notes Link for Node.js App Code used for Demo : https://github.com/shradha-khapra/docker-testapp https://www.youtube.com/embed/exmSJpJvIPs https://www.techtube.co.in/tutorials/dont-quit-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/lFdE2xQxE2k/maxresdefault.jpg Don’t Quit DSA!!! Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Struggling with DSA? Feeling like quitting after another wrong submission? This video is for you. Data Structures & Algorithms is not just about solving problems — it’s about building thinking power, discipline, and mental resilience. Every time you get stuck, every time you debug for hours, every time you fail a test case — you are growing. Most people quit DSA not because it’s impossible… They quit because it’s uncomfortable. But discomfort is where growth lives. In this video, I talk about: Why DSA feels overwhelming Why comparison kills consistency Why slow progress is still progress And why giving up now would be your biggest mistake If you are preparing for placements, aiming for product companies, or just trying to level up as an engineer — don’t stop now. You don’t need to be the smartest. You just need to stay longer in the game. Keep solving. Keep failing. Keep improving. Your breakthrough is closer than you think. Hashtags: #DSA #DataStructuresAndAlgorithms #CodingMotivation #DontGiveUp #ProgrammingMotivation #CodingJourney #LearnToCode #PlacementPreparation #SoftwareEngineering #CodingLife #TechCareer #Consistency #DeveloperMotivation #InterviewPreparation #LeetCode #CodeDaily #ComputerScience #ProgrammingTips #StudyMotivation #EngineeringStudents Your Queries: dsa motivation don’t give up on dsa data structures and algorithms motivation coding motivation programming motivation dsa for beginners how to stay consistent in coding placement preparation motivation interview prep motivation learn dsa coding journey software engineering motivation leetcode motivation developer mindset study motivation for engineers consistency in coding how to learn dsa fast CHAPTERS 00:00 - Introduction & Recap 00:20 - Don't give up on DSA - Theory 02:25 - Difficulity level of Questions - Theory 04:32 - Tips and Tricks - Theory 12:50 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns =========================== ➡️ Connect with me: LinkedIn : https://www.linkedin.com/in/anuj-kumar-9a188968/ Instagram : https://www.instagram.com/mr.anuj.brandy/ Discord : https://discord.com/invite/bbJXxFcauK =========================== https://www.youtube.com/embed/lFdE2xQxE2k https://www.techtube.co.in/tutorials/dont-watch-my-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/0bHoB32fuj0/maxresdefault.jpg Don't watch my A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/0bHoB32fuj0 https://www.techtube.co.in/tutorials/dota2-senate-leetcode-649-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/zZA5KskfMuQ/maxresdefault.jpg Dota2 Senate - Leetcode 649 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/dota2-senate 0:00 - Read the problem 0:30 - Drawing Explanation 11:55 - Coding Explanation leetcode 649 #neetcode #leetcode #python https://www.youtube.com/embed/zZA5KskfMuQ https://www.techtube.co.in/tutorials/dp-1-introduction-to-dynamic-programming-memoization-tabulation-space-optimization-techniques 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/tyB0ztf0DNY/maxresdefault.jpg DP 1. Introduction to Dynamic Programming | Memoization | Tabulation | Space Optimization Techniques Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/tyB0ztf0DNY https://www.techtube.co.in/tutorials/dp-10-minimum-path-sum-in-grid-asked-to-me-in-microsoft-internship-interview-dp-on-grids 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/_rgTlyky1uQ/maxresdefault.jpg DP 10. Minimum Path Sum in Grid | Asked to me In Microsoft Internship Interview | DP on GRIDS Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/_rgTlyky1uQ https://www.techtube.co.in/tutorials/dp-11-triangle-fixed-starting-point-and-variable-ending-point-dp-on-grids 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/SrP-PiLSYC0/maxresdefault.jpg DP 11. Triangle | Fixed Starting Point and Variable Ending Point | DP on GRIDS Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/SrP-PiLSYC0 https://www.techtube.co.in/tutorials/dp-12-minimummaximum-falling-path-sum-variable-starting-and-ending-points-dp-on-grids 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/N_aJ5qQbYA0/maxresdefault.jpg DP 12. Minimum/Maximum Falling Path Sum | Variable Starting and Ending Points | DP on Grids Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/N_aJ5qQbYA0 https://www.techtube.co.in/tutorials/dp-13-cherry-pickup-ii-3d-dp-made-easy-dp-on-grids 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/QGfn7JeXK54/maxresdefault.jpg DP 13. Cherry Pickup II | 3D DP Made Easy | DP On Grids Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/QGfn7JeXK54 https://www.techtube.co.in/tutorials/dp-14-subset-sum-equals-to-target-identify-dp-on-subsequences-and-ways-to-solve-them 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/fWX9xDmIzRI/maxresdefault.jpg DP 14. Subset Sum Equals to Target | Identify DP on Subsequences and Ways to Solve them Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/fWX9xDmIzRI https://www.techtube.co.in/tutorials/dp-15-partition-equal-subset-sum-dp-on-subsequences 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/7win3dcgo3k/maxresdefault.jpg DP 15. Partition Equal Subset Sum | DP on Subsequences Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/7win3dcgo3k https://www.techtube.co.in/tutorials/dp-16-partition-a-set-into-two-subsets-with-minimum-absolute-sum-difference-dp-on-subsequences 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/GS_OqZb2CWc/maxresdefault.jpg Dp 16. Partition A Set Into Two Subsets With Minimum Absolute Sum Difference | DP on Subsequences Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/GS_OqZb2CWc https://www.techtube.co.in/tutorials/dp-17-counts-subsets-with-sum-k-dp-on-subsequences 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ZHyb-A2Mte4/maxresdefault.jpg DP 17. Counts Subsets with Sum K | Dp on Subsequences Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/ZHyb-A2Mte4 https://www.techtube.co.in/tutorials/dp-18-count-partitions-with-given-difference-dp-on-subsequences 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/zoilQD1kYSg/maxresdefault.jpg DP 18. Count Partitions With Given Difference | Dp on Subsequences Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/zoilQD1kYSg https://www.techtube.co.in/tutorials/dp-19-01-knapsack-recursion-to-single-array-space-optimised-approach-dp-on-subsequences 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/GqOmJHQZivw/maxresdefault.jpg DP 19. 0/1 Knapsack | Recursion to Single Array Space Optimised Approach | DP on Subsequences Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Checkout the problem link 👇🏼 Stock Buy and Sell - https://takeuforward.org/plus/dsa/problems/best-time-to-buy-and-sell-stock Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/excAOvwF_Wk https://www.techtube.co.in/tutorials/dp-36-buy-and-sell-stock-ii-recursion-to-space-optimisation 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/nGJmxkUJQGs/maxresdefault.jpg DP 36. Buy and Sell Stock - II | Recursion to Space Optimisation Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/YY8iBaYcc4g https://www.techtube.co.in/tutorials/dp-46-longest-bitonic-subsequence-lis 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/y4vN0WNdrlg/maxresdefault.jpg DP 46. Longest Bitonic Subsequence | LIS Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/y4vN0WNdrlg https://www.techtube.co.in/tutorials/dp-47-number-of-longest-increasing-subsequences 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/cKVl1TFdNXg/maxresdefault.jpg DP 47. Number of Longest Increasing Subsequences Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/cKVl1TFdNXg https://www.techtube.co.in/tutorials/dp-48-matrix-chain-multiplication-mcm-partition-dp-starts 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/vRVfmbCFW7Y/maxresdefault.jpg DP 48. Matrix Chain Multiplication | MCM | Partition DP Starts 🔥 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/vRVfmbCFW7Y https://www.techtube.co.in/tutorials/dp-49-matrix-chain-multiplication-bottom-up-tabulation 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/pDCXsbAw5Cg/maxresdefault.jpg DP 49. Matrix Chain Multiplication | Bottom-Up | Tabulation Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/pDCXsbAw5Cg https://www.techtube.co.in/tutorials/dp-5-maximum-sum-of-non-adjacent-elements-house-robber-1-d-dp-on-subsequences 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/GrMBfJNk_NY/maxresdefault.jpg DP 5. Maximum Sum of Non-Adjacent Elements | House Robber | 1-D | DP on Subsequences Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/GrMBfJNk_NY https://www.techtube.co.in/tutorials/dp-50-minimum-cost-to-cut-the-stick 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/xwomavsC86c/maxresdefault.jpg DP 50. Minimum Cost to Cut the Stick Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/xwomavsC86c https://www.techtube.co.in/tutorials/dp-51-burst-balloons-partition-dp-interactive-g-meet-session-update 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Yz4LlDSlkns/maxresdefault.jpg DP 51. Burst Balloons | Partition DP | Interactive G-Meet Session Update Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/Yz4LlDSlkns https://www.techtube.co.in/tutorials/dp-52-evaluate-boolean-expression-to-true-partition-dp 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/MM7fXopgyjw/maxresdefault.jpg DP 52. Evaluate Boolean Expression to True | Partition DP Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/MM7fXopgyjw https://www.techtube.co.in/tutorials/dp-53-palindrome-partitioning-ii-front-partition 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/_H8V5hJUGd0/maxresdefault.jpg DP 53. Palindrome Partitioning - II | Front Partition 🔥 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/_H8V5hJUGd0 https://www.techtube.co.in/tutorials/dp-54-partition-array-for-maximum-sum-front-partition 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/PhWWJmaKfMc/maxresdefault.jpg DP 54. Partition Array for Maximum Sum | Front Partition 🔥 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/PhWWJmaKfMc https://www.techtube.co.in/tutorials/dp-55-maximum-rectangle-area-with-all-1s-dp-on-rectangles 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/tOylVCugy9k/maxresdefault.jpg DP 55. Maximum Rectangle Area with all 1's | DP on Rectangles Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/tOylVCugy9k https://www.techtube.co.in/tutorials/dp-56-count-square-submatrices-with-all-ones-dp-on-rectangles 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/auS1fynpnjo/maxresdefault.jpg DP 56. Count Square Submatrices with All Ones | DP on Rectangles 🔥 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/auS1fynpnjo https://www.techtube.co.in/tutorials/dp-6-house-robber-2-1d-dp-dp-on-subsequences 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/3WaxQMELSkw/maxresdefault.jpg DP 6. House Robber 2 | 1D DP | DP on Subsequences Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/3WaxQMELSkw https://www.techtube.co.in/tutorials/dp-7-ninjas-training-must-watch-for-2d-concepts-vacation-atcoder-2d-dp 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/AE39gJYuRog/maxresdefault.jpg DP 7. Ninja's Training | MUST WATCH for 2D CONCEPTS 🔥 | Vacation | Atcoder | 2D DP | Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/AE39gJYuRog https://www.techtube.co.in/tutorials/dp-8-grid-unique-paths-learn-everything-about-dp-on-grids-all-techniques 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/sdE0A2Oxofw/maxresdefault.jpg DP 8. Grid Unique Paths | Learn Everything about DP on Grids | ALL TECHNIQUES 🔥 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/sdE0A2Oxofw https://www.techtube.co.in/tutorials/dp-9-unique-paths-2-dp-on-grid-with-maze-obstacles 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/TmhpgXScLyY/maxresdefault.jpg DP 9. Unique Paths 2 | DP on Grid with Maze Obstacles Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/TmhpgXScLyY https://www.techtube.co.in/tutorials/dsa-crash-course-topic-wise-onboarding-sheet-patterns-list-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Xl0wuOqWWfQ/maxresdefault.jpg DSA Crash Course (Topic-Wise) + Onboarding SHEET + PATTERNS LIST #dsa Sheet Link: https://app.nextgen-cto.in/login Onboarding Sheet: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/ONBOARDING.md Babua DSA Patterns Sheet: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/BABUA_SHEET.md Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/sheet.svg Welcome to Babua DSA Patterns Course 2025 🚀 A complete Data Structures & Algorithms crash course covering 30 essential coding patterns — designed to help you master problem-solving and crack interviews at FAANG & top tech companies. Whether you're a beginner starting your DSA journey or an intermediate coder aiming to refine your concepts, this sheet-based guide walks you through 43 powerful lectures with structured patterns, curated problems, and real interview insights. 💡 What You’ll Learn 30 most important DSA patterns with theory + problems Step-by-step roadmap for each pattern Optimized templates for coding interviews GitHub fork-ready sheet to track your daily progress 🧠 Onboarding Sheet: Learn the basics before you begin 🧩 Covers Two Pointers, Sliding Window, Fast & Slow, Recursion, DP, Trees, Graphs, and more 🎓 Designed with love for every student learning DSA the right way ❤️ 💬 Comment "Sheet" to get the file link 💬 Comment "Done" once you’ve forked the GitHub repo CHAPTERS 00:00 Introduction 00:50 Course is for all levels of users 09:34 Patterns List 10:23 Conclusion Hashtags: #BabuaDSAPatterns #CTOBhaiya #DSAPatterns2025 #DSAForInterviews #DataStructuresAndAlgorithms #CodingInterviewPreparation #FAANGPreparation #CrackCodingInterviews #LearnDSA #DSAin90Days #DSAMastery #Striver #TakeUForward #LoveBabbar #ApnaCollege #NamasteDev #NishantChahar #AnujKumar #TeamCodebug #DSAPlaylist #CodingForBeginners #InterviewPreparation #LeetCodePatterns #BabuaCourse #JavaDSA #PythonDSA #CPlusPlusDSA #DynamicProgramming #AlgorithmsMadeEasy #CodingJourney Your Queries: Babua DSA Patterns Course 2025 DSA Patterns by CTO Bhaiya Data Structures and Algorithms Crash Course DSA for Beginners to Advanced Coding Interview Preparation 2025 FAANG Interview Preparation Striver DSA Sheet Alternative TakeUForward Patterns Love Babbar DSA Course Apna College DSA Playlist Nishant Chahar DSA Series Namaste Dev Coding Course Team Codebug DSA Sheet Dynamic Programming Tutorial LeetCode Patterns Explained DSA in Java Python C++ 30 DSA Patterns in 90 Days Master Coding Interviews Best DSA Course 2025 DSA Patterns Crash Course ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Xl0wuOqWWfQ https://www.techtube.co.in/tutorials/dsa-is-not-enough-in-20252026-why-product-development-matters-more-than-ever-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Ta45n2UmoGg/maxresdefault.jpg DSA Is NOT Enough in 2025/2026 | Why Product Development Matters More Than Ever #dsa Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Most students believe that DSA alone is enough to succeed in software engineering. That belief is outdated. In this video, I explain why product development is equally important today, and how DSA + product thinking together create strong, fast-growing engineers. We’ll break down: Why DSA is still important (but limited) What product development actually teaches you Why companies prefer feature owners, not just coders The real difference between interview engineers vs real-world engineers How to balance DSA + product building without confusion A clear learning roadmap for students and early professionals This video is especially useful if you: Are preparing for placements Feel stuck after solving many LeetCode problems Want faster growth, promotions, and real impact Want to become a strong product engineer, not just a DSA machine 👉 Remember: DSA helps you enter the company. Product development helps you grow inside it. If you found this useful, drop your thoughts in the comments and let me know: 👉 Are you focusing more on DSA or product dev right now? CHAPTERS 00:00 Introduction 01:50 Why DSA Is Important 05:42 What Product Dev adds 09:42 Why Today's Companies care about product thinking 13:00 You need both (DSA + Product Development) 16:18 The Ultimate UX Resource 23:04 Conclusion #DSA #ProductDevelopment #SoftwareEngineering #Placements #CodingInterviews #ProductEngineer #SystemDesign #BackendDevelopment #FullStackDevelopment #CareerInTech #EngineeringMindset #InterviewPreparation #LeetCode #RealWorldEngineering #TechCareers #CSStudents #CodingLife #BabuaDSAPatterns #CTOBhaiya #EngineeringGrowth Your Queries: DSA vs product development dsa is not enough product development for software engineers software engineering career coding interviews preparation placements roadmap system design basics backend development roadmap full stack developer roadmap real world engineering leetcode preparation engineering mindset product engineer skills how to grow as software engineer dsa and system design tech career guidance babua dsa patterns cto bhaiya ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Ta45n2UmoGg https://www.techtube.co.in/tutorials/dsa-patterns-in-90-days-course-best-way-to-learn-dsa-day-restart90 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/RlI62glGFlw/maxresdefault.jpg DSA Patterns In 90 Days Course | Best Way to Learn DSA | Day RESTART/90 Platform Link: 🚀 https://app.nextgen-cto.in/login 📌 All Resources in One Place! All the courses, resources, notes & sheets that I share are available on the NextGen CTO platform 👇 Sign in with Google and start learning. ❤️ Bookmark the platform — naye resources aur courses yahin add hote rahenge! 🔥 🇮🇳 **Babua DSA Patterns Course is RESTARTING! 🚀** Happy Independence Day ❤️ Aaj ek aur koshish — aap sabhi ko **expensive paid DSA courses se independent banane ki.** 😄 Babua DSA Patterns Course 2025–26 mein hum already **10+ important DSA patterns** cover kar chuke hain, aur ab course dobara regular continue hone wala hai. 🔥 **Patterns already covered:** ✅ Two Pointers ✅ Fast & Slow Pointers ✅ Sliding Window ✅ Intervals ✅ In-Place Linked List Manipulation ✅ Heaps ✅ K-Way Merge ✅ Top-K Elements ✅ Binary Search ✅ Cyclic Sort 📌 **Stack Pattern is currently in progress.** Is video mein hum discuss karenge: 👉 Babua DSA Patterns Course restart kyun ho raha hai? 👉 Course kab complete hoga? 👉 Ab tak kaun-kaun se DSA patterns complete hue hain? 👉 Abhi kaun se patterns baaki hain? 👉 Kya DSA abhi bhi interviews ke liye relevant hai? 👉 AI ke time mein bhi DSA kyun important hai? 👉 NextGen CTO platform par DSA tracking kaise karni hai? 👉 Course aur GitHub resources kaise use karne hain? 🎯 **Videos Monday se regular aayengi.** DSA seekhne ka objective sirf questions ratna nahi hai. Goal hai **logic build karna**, patterns identify karna aur interview mein confidently problems solve kar pana. Jisse samajh aata hai, usse padho. ❤️ **Par DSA mujhse bhi zaroor padhna — logic banane mein dikkat nahi aayegi. 😛** 📚 Complete Babua DSA Patterns repository: https://github.com/team-codebug/babua-dsa-patterns-course 💻 **NextGen CTO Platform:** https://app.nextgen-cto.in/login Platform par **DSA Patterns Sheet** mein enroll kar lena. Daily tracking bhi available hai. 🎯 **500 enrollments hue toh course full speed mein continue karenge!** Aur jo log abhi tak jude hue hain, videos dekhte hain, comments karte hain aur support karte rehte hain — **Thank You ❤️** Main aap sabhi ke comments dekhta hoon… Reply karne mein bas kabhi-kabhi aalas maar deta hoon. 😛 **Sorry sabhi ko. 🙏 Par ek mauka aur…** ### DSA bhule toh nahi? 😛🔥 #DSA #DataStructures #Algorithms #DSAPatterns #CodingInterview #PlacementPreparation #SoftwareEngineering #LeetCode #Coding #Programming #NextGenCTO #CTOBhaiya #BabuaDSA #DSA #DataStructuresAndAlgorithms #DSAPatterns #DSAForPlacements #DSAInterviewPreparation #CodingInterview #CodingInterviewPreparation #PlacementPreparation #SoftwareEngineering #SoftwareDeveloper #SDE #LeetCode #ProblemSolving #CompetitiveProgramming #Coding #Programming #LearnToCode #ComputerScience #TechCareers #CodingForBeginners #DSACourse #FreeDSACourse #InterviewPreparation #NextGenCTO #CTOBhaiya #BabuaDSA #BabuaDSAPatterns #Placements2026 #CodingPlacements #EngineeringStudents =========================== ➡️ Connect with me: LinkedIn : https://www.linkedin.com/in/anuj-kumar-9a188968/ Instagram : https://www.instagram.com/mr.anuj.brandy/ Discord : https://discord.com/invite/bbJXxFcauK =========================== https://www.youtube.com/embed/RlI62glGFlw https://www.techtube.co.in/tutorials/dsa-roadmap-interview-tips 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/RsJHUubCncw/maxresdefault.jpg 🔥 DSA Roadmap + Interview Tips 🚀 Complete DSA Roadmap by CTO Bhaiya If you are confused about how to start DSA, what topics to study first, how to practice questions, and how to build real interview confidence — this roadmap is for you. In this video/series, we will follow a structured DSA learning path: ✅ Step 1: Understand Time & Space Complexity Before solving problems, learn how to analyze your code properly. This will help you understand why one solution is better than another. Time & Space Complexity Course: https://www.youtube.com/watch?v=QnrIaLTee5c&list=PLVItHqpXY_DBclUeq-DQWFMq37BWA7iId ✅ Step 2: Learn DSA Topic-Wise Start with the core DSA topics like Arrays, Strings, Recursion, Sorting, Searching, Linked List, Stack, Queue, Trees, Graphs, DP, and more. Topic Wise DSA: https://www.youtube.com/watch?v=hw2nv3jIgZs&list=PLVItHqpXY_DArKRcfmGWykqV3u4hDaJLo ✅ Step 3: Practice Pattern-Wise DSA Once your basics are clear, shift to pattern-based problem solving. This helps you recognize repeated logic in coding interviews and solve problems faster. Patterns Wise DSA: https://www.youtube.com/watch?v=zvK49innOZY&list=PLVItHqpXY_DDFNeS6NUUoRsloyaPRdl1l ✅ Step 4: Follow the Onboarding Sheet Use this sheet to understand how to start, how to track your progress, and how to follow the complete DSA journey properly. Onboarding Sheet: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/ONBOARDING.md ✅ Step 5: Practice from the DSA Patterns Sheet This sheet contains structured pattern-wise problems to help you prepare for coding interviews in a focused way. DSA Patterns Sheet: https://docs.google.com/spreadsheets/d/1T3vPcwlWdMRMYSf8IxQCKb3gX7rGzDss-ZU-R4XFM14/edit?gid=0#gid=0 📌 Recommended Roadmap: First complete Time & Space Complexity Then learn DSA topic-wise Then start solving pattern-wise problems Track everything using the onboarding and DSA patterns sheet Revise regularly and focus on understanding patterns, not memorizing solutions This roadmap is designed to help beginners build strong DSA foundations and become confident for coding interviews. 🔥 Subscribe to CTO Bhaiya for DSA, system design, coding interviews, and software engineering guidance. #DSA #CodingInterview #DataStructures #Algorithms #CTOBhaiya #PlacementPreparation #LeetCode #CodingRoadmap #softwareengineering Your Queries: DSA roadmap CTO Bhaiya learn DSA DSA for beginners coding interview preparation data structures and algorithms DSA course DSA patterns pattern wise DSA topic wise DSA time complexity space complexity LeetCode preparation coding roadmap placement preparation software engineering interview tips DSA sheet DSA playlist FAANG preparation problem solving competitive programming arrays strings recursion graphs DP trees 100k subscribers =========================== ➡️ Connect with me: LinkedIn : https://www.linkedin.com/in/anuj-kumar-9a188968/ Instagram : https://www.instagram.com/mr.anuj.brandy/ Discord : https://discord.com/invite/bbJXxFcauK =========================== https://www.youtube.com/embed/RsJHUubCncw https://www.techtube.co.in/tutorials/dynamic-programming-introduction 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/nqowUJzG-iM/maxresdefault.jpg Dynamic Programming | Introduction In this video,we are going to learn about "DYNAMIC PROGRAMMING".Dynamic Programming is mainly an optimization over a plain recursion. Playlist Link: https://www.youtube.com/watch?v=nqowUJzG-iM&list=PL_z_8CaSLPWekqhdCPmFohncHwz8TY2Go&index=2&ab_channel=AdityaVerma . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/nqowUJzG-iM https://www.techtube.co.in/tutorials/easily-solve-range-query-interview-problems-with-square-root-decompositionmos-algorithm 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/U4YmISZViSs/maxresdefault.jpg Easily Solve Range Query Interview Problems with Square Root Decomposition/Mo's Algorithm In this tutorial, we'll explore the Square Root Decomposition method, a powerful algorithm for tackling range query problems in coding interviews. Join me as we break down the concept and demonstrate its application in solving real-world coding challenges. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/SQRTDecomposition - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org ============================================= Timestamps: 00:00 Theory 28:59 Code #dsa #placement https://www.youtube.com/embed/U4YmISZViSs https://www.techtube.co.in/tutorials/edit-distance-dynamic-programming-leetcode-72-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/XYi2-LPrwm4/maxresdefault.jpg Edit Distance - Dynamic Programming - Leetcode 72 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/edit-distance 0:00 - Read the problem 1:28 - Explaining Intuition 10:40 - Drawing Explanation 15:28 - Coding Explanation leetcode 72 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #edit #distance #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/XYi2-LPrwm4 https://www.techtube.co.in/tutorials/ek-nayi-shuruat-the-next-chapter-of-cto-bhaiya 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/yJMZAFg024A/maxresdefault.jpg Ek Nayi Shuruat: The Next Chapter of CTO Bhaiya SHEET LINK: https://app.nextgen-cto.in/login JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a 🚀 Big Update: NextGen CTO Platform Launch + Babua DSA Patterns Course Roadmap From reaching 1,00,000+ subscribers on CTO Bhaiya to launching our own learning platform — this journey has given me an identity, an amazing community, and a much bigger mission. ❤️ In this video, I’m sharing an important update about what’s next for CTO Bhaiya and NextGen CTO. We’re launching the NextGen CTO learning platform to create a more organised, focused, and long-term learning experience for serious students. Why build our own platform? YouTube is amazing for reaching students, but it has limitations when it comes to structured learning. Courses can become difficult to organise, memberships take a significant platform cut, and students need a dedicated place where they can properly track their learning journey. On the NextGen CTO platform, we plan to offer: 📄 Sheet-based courses 📝 Detailed notes-based courses 🎥 Complete video courses with: Videos Quizzes Projects Handwritten notes 👨‍🏫 Category-wise mentorship programs 💼 Jobs and internship collaborations The lectures will continue to be in our usual Babua style 😄, but students who prefer learning in English will also be able to use the detailed notes and course material independently. What about the Babua DSA Patterns Course? Don’t worry — Babua DSA Patterns is not stopping. I will continue uploading videos, although the pace may sometimes be slower because building a complete high-quality course takes time. You’ll also be able to track the complete course structure and progress through the sheet-based course on the NextGen CTO platform. The bigger mission ❤️ The goal is not just to create more courses. The goal is to help more serious students: ✅ Learn skills properly ✅ Build real projects ✅ Find internships ✅ Land better jobs We currently have 4 amazing people working with us, and our goal is to create even more internship and job opportunities as we continue to grow. From a YouTube channel to a complete learning ecosystem — this is just the beginning. Thank you for being a part of this journey. ❤️ Kahan ho Bhaiya??? 😄 #CTOBhaiya #NextGenCTO #BabuaDSAPatterns #DSA #Coding #Programming #SoftwareEngineering #WebDevelopment #TechCareers #Internships #Jobs #learntocode Your queries: NextGen CTO CTO Bhaiya Babua DSA Patterns Babua DSA Patterns Course DSA course Data Structures and Algorithms Coding course Learn DSA DSA for beginners Coding interview preparation Placement preparation Software engineering Programming in Hindi Hindi coding channel Coding roadmap DSA roadmap NextGen CTO platform Learning platform launch Coding mentorship Internship opportunities Developer jobs Computer science students Engineering students =========================== ➡️ Connect with me: WHATSAPP Community Link: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a LinkedIn : https://www.linkedin.com/in/anuj-kumar-9a188968/ Instagram : https://www.instagram.com/mr.anuj.brandy/ Discord : https://discord.com/invite/bbJXxFcauK =========================== https://www.youtube.com/embed/yJMZAFg024A https://www.techtube.co.in/tutorials/encode-and-decode-strings-leetcode-271-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/B1k_sxOSgv8/maxresdefault.jpg Encode and Decode Strings - Leetcode 271 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/string-encode-and-decode 0:00 - Read the problem 1:47 - Drawing Explanation 7:04 - Coding Explanation leetcode 271 #sorted #array #python https://www.youtube.com/embed/B1k_sxOSgv8 https://www.techtube.co.in/tutorials/evaluate-division-leetcode-399-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Uei1fwDoyKk/maxresdefault.jpg Evaluate Division - Leetcode 399 - Python Solving leetcode 399 - evaluate division, today's daily leetcode problem on may 19. 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/evaluate-division 0:00 - Read the problem 1:30 - Drawing Explanation 10:15 - Coding Explanation leetcode 399 #neetcode #leetcode #python https://www.youtube.com/embed/Uei1fwDoyKk https://www.techtube.co.in/tutorials/evaluate-reverse-polish-notation-leetcode-150-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/iu0082c4HDE/maxresdefault.jpg Evaluate Reverse Polish Notation - Leetcode 150 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/evaluate-reverse-polish-notation 0:00 - Read the problem 1:25 - Drawing Explanation 5:47 - Coding Explanation leetcode 150 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #amazon #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/iu0082c4HDE https://www.techtube.co.in/tutorials/excel-sheet-column-title-leetcode-168-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/X_vJDpCCuoA/maxresdefault.jpg Excel Sheet Column Title - Leetcode 168 - Python Solving leetcode 168, Excel Sheet Column Title. Todays daily leetcode problem on august 21. 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/excel-sheet-column-title 0:00 - Read the problem 0:30 - Drawing Explanation 8:50 - Coding Explanation leetcode 168 #neetcode #leetcode #python https://www.youtube.com/embed/X_vJDpCCuoA https://www.techtube.co.in/tutorials/extra-characters-in-a-string-leetcode-2707-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/ONstwO1cD7c/maxresdefault.jpg Extra Characters in a String - Leetcode 2707 - Python Solving Leetcode 2707 - Extra characters in a String, today's daily leetcode problem on september 1st. 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/extra-characters-in-a-string 0:00 - Read the problem 0:30 - Drawing Explanation 7:30 - Coding Memoization 11:30 - Coding Trie solution leetcode 2707 #neetcode #leetcode #python https://www.youtube.com/embed/ONstwO1cD7c https://www.techtube.co.in/tutorials/file-handling-in-java-complete-course 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/b35mlSPOlJg/maxresdefault.jpg File Handling in Java Complete Course In this tutorial, we will learn how to handle files in Java using various streams. We will dive into multiple stream classes for efficient input and output operations in this hands-on tutorial. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - File handling code: https://replit.com/@KunalsReplit/File-handling - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com #dsa #placement #filehandling https://www.youtube.com/embed/b35mlSPOlJg https://www.techtube.co.in/tutorials/find-critical-and-pseudo-critical-edges-in-minimum-spanning-tree-leetcode-1489-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/83JnUxrLKJU/maxresdefault.jpg Find Critical and Pseudo Critical Edges in Minimum Spanning Tree - Leetcode 1489 - Python Solving leetcode 1489, Find Critical and Pseudo Critical Edges in Minimum Spanning Tree, todays daily leetcode problem. 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/find-critical-and-pseudo-critical-edges-in-minimum-spanning-tree 0:00 - Read the problem 1:00 - Drawing Explanation 10:00 - Coding Explanation leetcode 1489 #neetcode #leetcode #python https://www.youtube.com/embed/83JnUxrLKJU https://www.techtube.co.in/tutorials/find-element-that-appears-once-find-missing-number-max-consecutive-number-of-1s-arrays-part-3 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/bYWLJb3vCWY/maxresdefault.jpg Find element that appears once | Find missing number | Max Consecutive number of 1's | Arrays Part-3 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 1.Find missing number in an array - https://takeuforward.org/plus/dsa/problems/find-missing-number 2.Maximum Consecutive Ones - https://takeuforward.org/plus/dsa/problems/maximum-consecutive-ones 3.Find the number that appears once, and other numbers twice - https://takeuforward.org/plus/dsa/problems/single-number---i Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/bYWLJb3vCWY https://www.techtube.co.in/tutorials/find-in-mountain-array-leetcode-1095-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/BGgYC-YkGvc/maxresdefault.jpg Find in Mountain Array - Leetcode 1095 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/find-in-mountain-array 0:00 - Read the problem 0:30 - Drawing Explanation 6:55 - Coding Explanation leetcode 1095 #neetcode #leetcode #python https://www.youtube.com/embed/BGgYC-YkGvc https://www.techtube.co.in/tutorials/find-k-closest-elements-leetcode-658-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/o-YDQzHoaKM/maxresdefault.jpg Find K Closest Elements - Leetcode 658 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/find-k-closest-elements 0:00 - Read the problem 1:50 - Drawing Explanation 15:01 - Coding Explanation leetcode 658 #coding #interview #python https://www.youtube.com/embed/o-YDQzHoaKM https://www.techtube.co.in/tutorials/find-median-from-data-stream-heap-priority-queue-leetcode-295 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/itmhHWaHupI/maxresdefault.jpg Find Median from Data Stream - Heap & Priority Queue - Leetcode 295 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/find-median-in-a-data-stream 0:00 - Read the problem 1:39 - Drawing Brute Force 5:02 - Drawing Heap Solution 15:15 - Coding Solution leetcode 295 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #median #heap #python https://www.youtube.com/embed/itmhHWaHupI https://www.techtube.co.in/tutorials/find-minimum-in-rotated-sorted-array-binary-search-leetcode-153-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/nIVW4P8b1VA/maxresdefault.jpg Find Minimum in Rotated Sorted Array - Binary Search - Leetcode 153 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/find-minimum-in-rotated-sorted-array 0:00 - Read the problem 1:34 - Drawing Explanation 10:10 - Coding Explanation leetcode 153 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #rotated #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/nIVW4P8b1VA https://www.techtube.co.in/tutorials/find-second-largest-element-in-array-remove-duplicates-from-sorted-array-arrays-intro-video 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/37E9ckMDdTk/maxresdefault.jpg Find Second Largest Element in Array | Remove duplicates from Sorted Array | Arrays Intro Video Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 1.Second Largest Element in an Array without sorting -https://takeuforward.org/plus/dsa/problems/second-largest-element 2.Largest Element in an Array https://takeuforward.org/plus/dsa/problems/largest-element 3.Check if the array is sorted https://takeuforward.org/plus/dsa/problems/check-if-the-array-is-sorted 4.Remove duplicates from Sorted array https://takeuforward.org/plus/dsa/problems/remove-duplicates-from-sorted-array Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/37E9ckMDdTk https://www.techtube.co.in/tutorials/find-the-duplicate-number-floyds-cycle-detection-leetcode-287-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/wjYnzkAhcNk/maxresdefault.jpg Find the Duplicate Number - Floyd's Cycle Detection - Leetcode 287 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/find-duplicate-integer 0:00 - Read the problem 2:32 - Drawing Explanation 14:31 - Coding Explanation leetcode 287 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #floyd #cycle #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/wjYnzkAhcNk https://www.techtube.co.in/tutorials/find-the-missing-and-repeating-number-4-approaches 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/2D0D8HE6uak/maxresdefault.jpg Find the Missing and Repeating Number | 4 Approaches 🔥 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Find the Missing and Repeating Number | 4 Approaches 🔥 https://takeuforward.org/plus/dsa/problems/find-the-repeating-and-missing-number Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/2D0D8HE6uak https://www.techtube.co.in/tutorials/find-the-town-judge-leetcode-997-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/QiGaxdUINJ8/maxresdefault.jpg Find the Town Judge - Leetcode 997 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/find-the-town-judge 0:00 - Read the problem 0:35 - Drawing Explanation 6:33 - Coding Explanation leetcode 997 #neetcode #leetcode #python https://www.youtube.com/embed/QiGaxdUINJ8 https://www.techtube.co.in/tutorials/first-java-program-inputoutput-debugging-and-datatypes 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/TAtrPoaJ7gc/maxresdefault.jpg First Java Program - Input/Output, Debugging and Datatypes In this video we run our first Java program from scratch, providing a hands on demo of every step. We cover input and output in Java, data types, type conversion and casting, debugging, control flow, loops, and also solve a few problems. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00 Introduction 1:32 Creating .java file 1:11 Setting Up Few Things 3:07 Structure of Java File 7:57 Creating Main Function 9:58 Writing First Line of Code (Printing "Hello Word!") 10:37 Converting .java to .class (Byte Code) 12:23 Running Main.class 12:40 Explanation of words of the Program 12:59 What is 'public' (1st line)? 13:12 What is 'class'? 13:30 What is 'Main' in this code 13:56 What is 'main function'? 14:35 What is 'public' (2nd line)? 15:06 What is 'static'? 18:24 What is 'void'? 19:07 Array and Arguments 21:00 Changing Location of Byte Code 22:25 Location of 'javac' and 'java' 24:31 Environment Variable PATH 27:25 Starting with IntelliJ IDEA 29:49 Some Shortcuts 30:17 What is a 'package'? 32:42 What is 'System.out.println()'? 34:45 Outputs in Java 39:25 Inputs in Java 46:40 Primitive Data Types in Java 54:14 Comments in Java 55:08 Int Input Program 59:47 Literals and Identifiers 1:01:18 String Input Program 1:02:38 Float Input Program 1:04:39 Sum of Two Numbers 1:07:30 Type Conversion and Casting 1:07:48 Type Conversion 1:08:39 Conditions for Type Conversion 1:10:24 Typecasting 1:12:20 Automatic Type Promotion in Expressions 1:18:25 Java follows Unicode 1:19:20 Rules for Type Promotion 1:21:18 Example for thorough review of concepts 1:25:00 Basics of while loops and for loops 1:25:13 if condition 1:26:00 while loops 1:27:19 for loops 1:28:03 When to use - while loop and for loop 1:28:45 Temperature Conversion Program 1:31:52 Outro #java #placement #dsa #interviews https://www.youtube.com/embed/TAtrPoaJ7gc https://www.techtube.co.in/tutorials/first-missing-positive-leetcode-41-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/8g78yfzMlao/maxresdefault.jpg First Missing Positive - Leetcode 41 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/first-missing-positive 0:00 - Read the problem 1:35 - Drawing Explanation 16:35 - Coding Explanation leetcode 41 #sorted #array #python https://www.youtube.com/embed/8g78yfzMlao https://www.techtube.co.in/tutorials/flow-of-program-flowcharts-pseudocode 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/lhELGQAV4gg/maxresdefault.jpg Flow of Program - Flowcharts & Pseudocode In this video, we discuss the flow of the program. Giving you insights about how to visualise your algorithms using flowcharts and turn them into pseudocode. We cover concepts like if conditions, loops, and also learn how to find whether a number is prime or not in an efficient way. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00 Introduction 0:44 Flowchart Symbols 0:57 Start/Stop 1:00 Input/Output 1:12 Processing 1:22 Conditions 2:12 What are Flowcharts? 3:13 Question-1 using Flowchart 4:13 Question-2 using Flowchart 5:40 Question-3 using Flowchart 11:55 What is Pseudocode 12:59 Pseudocode of Question-3 15:35 Pseudocode of Question-2 17:13 More Explanation of Question-3 22:00 Optimised Prime Solution 26:44 Outro #placement #dsa #interviews https://www.youtube.com/embed/lhELGQAV4gg https://www.techtube.co.in/tutorials/from-nobody-to-nitk-iitm-intuit-adobe-cto-and-finally-ceo-of-my-own-company-my-journey-so-far 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/vMndRzz1SRo/maxresdefault.jpg From NOBODY to NITK, IITM, Intuit, Adobe, CTO and finally CEO of my own Company | My Journey so far Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Bas comments mai aj apna kuch special experience share karna. Kuch bhi share karo. Your Hashtags: #CTOBhaiya #NextGenCTO #EngineeringJourney #FromCollegeToCTO #NITKAlumni #IITMadrasIntern #IntuitInternship #AdobeLife #StartupJourney #TechLeadership #Web3Innovation #DirectorOfEngineering #MonetWeb3 #CEOJourney #TechEntrepreneur #CareerInTech #IndianCTO #SoftwareEngineering #InspiringTechStories #FromInternToCTO Your queries: CTO Bhaiya journey Anuj Kumar NITK IIT Madras intern Intuit internship experience Adobe software engineer story Director of Engineering Monet Web3 Indian CTO career path NextGen CTO founder CEO tech entrepreneurship Engineering success story Web3 startup leadership Coding career roadmap Software engineer to CTO Indian tech leadership Inspiring tech journey ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/vMndRzz1SRo https://www.techtube.co.in/tutorials/functions-methods-in-java 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/vvanI8NRlSI/maxresdefault.jpg Functions / Methods in Java All about #functions in Java from scratch! In this video, we cover in detail functions/methods in Java. Starting with the syntax, we cover topics like types of arguments, how values are passed, scoping, shadowing, function overloading, with examples. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00 Introduction ‌‍‍‍‌‌‍‍ ‌‍‍‌‌‌‌‍ ‌‍‍‌‍‍‌‍ ‌‍‍‌‍‌‍‌ ‌‍‍‌‍‍‍‌ ‌‌‍‍‌‌‌‌ 1:58 Problem Statement 5:31 Methods 5:41 Syntax of a Method 6:40 🎯 Program : Sum of two numbers 9:11 🎯 Program : Greetings 11:18 Returning Values 14:31 Returning a String 17:42 Parameters (Integer Function) 20:36 Parameters (String Function) 25:03 🎯 Program : Swap two numbers 25:25 🎯 Program : Pass Value 29:39 Internal Working of Swapping Program 41:33 🎯 Program : Change Value 46:41 Scope 47:00 Method Scope 49:46 Block Scope 55:32 Loop Scope 59:44 Shadowing 1:06:53 Variable Arguments (Varargs) 1:12:07 Method Overloading 1:19:25 🎯 Questions 1:20:01 Q1 : Prime Number 1:23:52 Q2 : Check Armstrong Number 1:28:27 Q3 : Print All 3 Digit Armstrong Numbers 1:30:18 Outro #placement #dsa #interviews https://www.youtube.com/embed/vvanI8NRlSI https://www.techtube.co.in/tutorials/g-1-introduction-to-graph-types-different-conventions-used 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/M3_pLsDdeuU/maxresdefault.jpg G-1. Introduction to Graph | Types | Different Conventions Used Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/M3_pLsDdeuU https://www.techtube.co.in/tutorials/g-10-rotten-oranges-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/yf3oUhkvqA0/maxresdefault.jpg G-10. Rotten Oranges | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Rotten Oranges | C++ | Java https://takeuforward.org/plus/dsa/problems/rotten-oranges Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/yf3oUhkvqA0 https://www.techtube.co.in/tutorials/g-11-detect-a-cycle-in-an-undirected-graph-using-bfs-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/BPlrALf1LDU/maxresdefault.jpg G-11. Detect a Cycle in an Undirected Graph using BFS | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Detect a Cycle in an Undirected Graph using BFS | C++ | Java https://takeuforward.org/plus/dsa/problems/detect-a-cycle-in-an-undirected-graph Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/BPlrALf1LDU https://www.techtube.co.in/tutorials/g-12-detect-a-cycle-in-an-undirected-graph-using-dfs-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/zQ3zgFypzX4/maxresdefault.jpg G-12. Detect a Cycle in an Undirected Graph using DFS | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Detect a Cycle in an Undirected Graph using DFS | C++ | Java https://takeuforward.org/plus/dsa/problems/detect-a-cycle-in-an-undirected-graph Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/zQ3zgFypzX4 https://www.techtube.co.in/tutorials/g-13-distance-of-nearest-cell-having-1-01-matrix-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/edXdVwkYHF8/maxresdefault.jpg G-13. Distance of nearest cell having 1 | 0/1 Matrix | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Distance of nearest cell having 1 | 0/1 Matrix | C++ | Java https://takeuforward.org/plus/dsa/problems/distance-of-nearest-cell-having-one Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/edXdVwkYHF8 https://www.techtube.co.in/tutorials/g-14-surrounded-regions-replace-os-with-xs-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/BtdgAys4yMk/maxresdefault.jpg G-14. Surrounded Regions | Replace O's with X's | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Surrounded Regions | Replace O's with X's | C++ | Java https://takeuforward.org/plus/dsa/problems/surrounded-regions Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/BtdgAys4yMk https://www.techtube.co.in/tutorials/g-15-number-of-enclaves-multi-source-bfs-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/rxKcepXQgU4/maxresdefault.jpg G-15. Number of Enclaves | Multi-source BFS | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Number of Enclaves | Multi-source BFS | C++ | Java https://takeuforward.org/plus/dsa/problems/number-of-enclaves Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/rxKcepXQgU4 https://www.techtube.co.in/tutorials/g-16-number-of-distinct-islands-constructive-thinking-dfs-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/7zmgQSJghpo/maxresdefault.jpg G-16. Number of Distinct Islands | Constructive Thinking + DFS | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/7zmgQSJghpo https://www.techtube.co.in/tutorials/g-17-bipartite-graph-bfs-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/-vu34sct1g8/maxresdefault.jpg G-17. Bipartite Graph | BFS | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/-vu34sct1g8 https://www.techtube.co.in/tutorials/g-18-bipartite-graph-dfs-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/KG5YFfR0j8A/maxresdefault.jpg G-18. Bipartite Graph | DFS | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/KG5YFfR0j8A https://www.techtube.co.in/tutorials/g-19-detect-cycle-in-a-directed-graph-using-dfs-java-c 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/9twcmtQj4DU/maxresdefault.jpg G-19. Detect cycle in a directed graph using DFS | Java | C++ Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/9twcmtQj4DU https://www.techtube.co.in/tutorials/g-2-graph-representation-in-c-two-ways-to-represent 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/3oI-34aPMWM/maxresdefault.jpg G-2. Graph Representation in C++ | Two Ways to Represent Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/3oI-34aPMWM https://www.techtube.co.in/tutorials/g-20-find-eventual-safe-states-dfs 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/uRbJ1OF9aYM/maxresdefault.jpg G-20. Find Eventual Safe States - DFS Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/uRbJ1OF9aYM https://www.techtube.co.in/tutorials/g-21-topological-sort-algorithm-dfs 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/5lZ0iJMrUMk/maxresdefault.jpg G-21. Topological Sort Algorithm | DFS Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Topological Sort Algorithm | DFS https://takeuforward.org/plus/dsa/problems/topological-sort-or-kahns-algorithm Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/5lZ0iJMrUMk https://www.techtube.co.in/tutorials/g-22-kahns-algorithm-topological-sort-algorithm-bfs 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/73sneFXuTEg/maxresdefault.jpg G-22. Kahn's Algorithm | Topological Sort Algorithm | BFS Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Kahn's Algorithm | Topological Sort Algorithm | BFS https://takeuforward.org/plus/dsa/problems/topological-sort-or-kahns-algorithm Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/73sneFXuTEg https://www.techtube.co.in/tutorials/g-23-detect-a-cycle-in-directed-graph-topological-sort-kahns-algorithm-bfs 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/iTBaI90lpDQ/maxresdefault.jpg G-23. Detect a Cycle in Directed Graph | Topological Sort | Kahn's Algorithm | BFS Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Detect a Cycle in Directed Graph | Topological Sort | Kahn's Algorithm | BFS https://takeuforward.org/plus/dsa/problems/detect-a-cycle-in-a-directed-graph Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/iTBaI90lpDQ https://www.techtube.co.in/tutorials/g-24-course-schedule-i-and-ii-pre-requisite-tasks-topological-sort 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/WAOfKpxYHR8/maxresdefault.jpg G-24. Course Schedule I and II | Pre-requisite Tasks | Topological Sort Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Course Schedule I and II | Pre-requisite Tasks | Topological Sort https://takeuforward.org/plus/dsa/problems/course-schedule-i https://takeuforward.org/plus/dsa/problems/course-schedule-ii Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/WAOfKpxYHR8 https://www.techtube.co.in/tutorials/g-25-find-eventual-safe-states-bfs-topological-sort 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/2gtg3VsDGyc/maxresdefault.jpg G-25. Find Eventual Safe States - BFS - Topological Sort Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Find Eventual Safe States - BFS - Topological Sort https://takeuforward.org/plus/dsa/problems/find-eventual-safe-states Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/2gtg3VsDGyc https://www.techtube.co.in/tutorials/g-26-alien-dictionary-topological-sort 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/U3N_je7tWAs/maxresdefault.jpg G-26. Alien Dictionary - Topological Sort Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Alien Dictionary - Topological Sort https://takeuforward.org/plus/dsa/problems/alient-dictionary Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/U3N_je7tWAs https://www.techtube.co.in/tutorials/g-27-shortest-path-in-directed-acyclic-graph-topological-sort 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ZUFQfFaU-8U/maxresdefault.jpg G-27. Shortest Path in Directed Acyclic Graph - Topological Sort Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Shortest Path in Directed Acyclic Graph - Topological Sort https://takeuforward.org/plus/dsa/problems/shortest-path-in-dag Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/ZUFQfFaU-8U https://www.techtube.co.in/tutorials/g-28-shortest-path-in-undirected-graph-with-unit-weights 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/C4gxoTaI71U/maxresdefault.jpg G-28. Shortest Path in Undirected Graph with Unit Weights Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Shortest Path in Undirected Graph with Unit Weights https://takeuforward.org/plus/dsa/problems/shortest-path-in-undirected-graph-with-unit-weights Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/C4gxoTaI71U https://www.techtube.co.in/tutorials/g-29-word-ladder-i-shortest-paths 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/tRPda0rcf8E/maxresdefault.jpg G-29. Word Ladder - I | Shortest Paths Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Word Ladder - I | Shortest Paths https://takeuforward.org/plus/dsa/problems/word-ladder-i Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/tRPda0rcf8E https://www.techtube.co.in/tutorials/g-3-graph-representation-in-java-two-ways-to-represent 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/OsNklbh9gYI/maxresdefault.jpg G-3. Graph Representation in Java | Two Ways to Represent Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/OsNklbh9gYI https://www.techtube.co.in/tutorials/g-30-word-ladder-2-shortest-paths 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/DREutrv2XD0/maxresdefault.jpg G-30. Word Ladder - 2 | Shortest Paths Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/DREutrv2XD0 https://www.techtube.co.in/tutorials/g-31-word-ladder-2-optimised-approach-for-leetcode 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/AD4SFl7tu7I/maxresdefault.jpg G-31. Word Ladder - 2 | Optimised Approach for Leetcode Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Word Ladder - 2 https://takeuforward.org/plus/dsa/problems/word-ladder-ii Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/AD4SFl7tu7I https://www.techtube.co.in/tutorials/g-32-dijkstras-algorithm-using-priority-queue-c-and-java-part-1 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/V6H1qAeB-l4/maxresdefault.jpg G-32. Dijkstra's Algorithm - Using Priority Queue - C++ and Java - Part 1 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/V6H1qAeB-l4 https://www.techtube.co.in/tutorials/g-33-dijkstras-algorithm-using-set-part-2 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/PATgNiuTP20/maxresdefault.jpg G-33. Dijkstra's Algorithm - Using Set - Part 2 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/PATgNiuTP20 https://www.techtube.co.in/tutorials/g-34-dijkstras-algorithm-why-pq-and-not-q-intuition-time-complexity-derivation-part-3 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/3dINsjyfooY/maxresdefault.jpg G-34. Dijkstra's Algorithm - Why PQ and not Q, Intuition, Time Complexity Derivation - Part 3 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/3dINsjyfooY https://www.techtube.co.in/tutorials/g-35-print-shortest-path-dijkstras-algorithm 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/rp1SMw7HSO8/maxresdefault.jpg G-35. Print Shortest Path - Dijkstra's Algorithm Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Print Shortest Path - Dijkstra's Algorithm https://takeuforward.org/plus/dsa/problems/dijkstra's-algorithm Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/rp1SMw7HSO8 https://www.techtube.co.in/tutorials/g-36-shortest-distance-in-a-binary-maze 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/U5Mw4eyUmw4/maxresdefault.jpg G-36. Shortest Distance in a Binary Maze Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Shortest Distance in a Binary Maze https://takeuforward.org/plus/dsa/problems/shortest-path-with-minimum-effort Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/U5Mw4eyUmw4 https://www.techtube.co.in/tutorials/g-37-path-with-minimum-effort 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/0ytpZyiZFhA/maxresdefault.jpg G-37. Path With Minimum Effort Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Path With Minimum Effort https://takeuforward.org/plus/dsa/problems/path-with-minimum-effort Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/0ytpZyiZFhA https://www.techtube.co.in/tutorials/g-38-cheapest-flights-within-k-stops 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/9XybHVqTHcQ/maxresdefault.jpg G-38. Cheapest Flights Within K Stops Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Cheapest Flights Within K Stops https://takeuforward.org/plus/dsa/problems/cheapest-flight-within-k-stops Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/9XybHVqTHcQ https://www.techtube.co.in/tutorials/g-39-minimum-multiplications-to-reach-end 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/_BvEJ3VIDWw/maxresdefault.jpg G-39. Minimum Multiplications to Reach End Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Minimum Multiplications to Reach End https://takeuforward.org/plus/dsa/problems/minimum-multiplications-to-reach-end Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/_BvEJ3VIDWw https://www.techtube.co.in/tutorials/g-4-what-are-connected-components 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/lea-Wl_uWXY/maxresdefault.jpg G-4. What are Connected Components ? Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 What are Connected Components ? https://takeuforward.org/plus/dsa/problems/connected-components Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/lea-Wl_uWXY https://www.techtube.co.in/tutorials/g-40-number-of-ways-to-arrive-at-destination 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/_-0mx0SmYxA/maxresdefault.jpg G-40. Number of Ways to Arrive at Destination Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Number of Ways to Arrive at Destination https://takeuforward.org/plus/dsa/problems/number-of-ways-to-arrive-at-destination Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/_-0mx0SmYxA https://www.techtube.co.in/tutorials/g-41-bellman-ford-algorithm 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/0vVofAhAYjc/maxresdefault.jpg G-41. Bellman Ford Algorithm Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Bellman Ford Algorithm https://takeuforward.org/plus/dsa/problems/bellman-ford-algorithm Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/0vVofAhAYjc https://www.techtube.co.in/tutorials/g-42-floyd-warshall-algorithm 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/YbY8cVwWAvw/maxresdefault.jpg G-42. Floyd Warshall Algorithm Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Floyd Warshall Algorithm https://takeuforward.org/plus/dsa/problems/floyd-warshall-algorithm Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/YbY8cVwWAvw https://www.techtube.co.in/tutorials/g-43-find-the-city-with-the-smallest-number-of-neighbours-at-a-threshold-distance 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/PwMVNSJ5SLI/maxresdefault.jpg G-43. Find the City With the Smallest Number of Neighbours at a Threshold Distance Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/PwMVNSJ5SLI https://www.techtube.co.in/tutorials/g-44-minimum-spanning-tree-theory 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ZSPjZuZWCME/maxresdefault.jpg G-44. Minimum Spanning Tree - Theory Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/ZSPjZuZWCME https://www.techtube.co.in/tutorials/g-45-prims-algorithm-minimum-spanning-tree-c-and-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/mJcZjjKzeqk/maxresdefault.jpg G-45. Prim's Algorithm - Minimum Spanning Tree - C++ and Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Prim's Algorithm - Minimum Spanning Tree - C++ and Java https://takeuforward.org/plus/dsa/problems/find-the-mst-weight Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/mJcZjjKzeqk https://www.techtube.co.in/tutorials/g-46-disjoint-set-union-by-rank-union-by-size-path-compression 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/aBxjDBC4M1U/maxresdefault.jpg G-46. Disjoint Set | Union by Rank | Union by Size | Path Compression Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Disjoint Set | Union by Rank | Union by Size | Path Compression https://takeuforward.org/plus/dsa/problems/disjoint-set- https://takeuforward.org/plus/dsa/problems/disjoint-set- Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/aBxjDBC4M1U https://www.techtube.co.in/tutorials/g-47-kruskals-algorithm-minimum-spanning-tree-c-and-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/DMnDM_sxVig/maxresdefault.jpg G-47. Kruskal's Algorithm - Minimum Spanning Tree - C++ and Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Kruskal's Algorithm - Minimum Spanning Tree - C++ and Java https://takeuforward.org/plus/dsa/problems/find-the-mst-weight Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/DMnDM_sxVig https://www.techtube.co.in/tutorials/g-48-number-of-provinces-disjoint-set 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ZGr5nX-Gi6Y/maxresdefault.jpg G-48. Number of Provinces - Disjoint Set Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/ZGr5nX-Gi6Y https://www.techtube.co.in/tutorials/g-49-number-of-operations-to-make-network-connected-dsu 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/FYrl7iz9_ZU/maxresdefault.jpg G-49. Number of Operations to Make Network Connected - DSU Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Number of Operations to Make Network Connected - DSU https://takeuforward.org/plus/dsa/problems/number-of-operations-to-make-network-connected Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/FYrl7iz9_ZU https://www.techtube.co.in/tutorials/g-5-breadth-first-search-bfs-c-and-java-traversal-technique-in-graphs 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/-tgVpUgsQ5k/maxresdefault.jpg G-5. Breadth-First Search (BFS) | C++ and Java | Traversal Technique in Graphs Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Breadth-First Search (BFS) | C++ and Java | Traversal Technique in Graphs https://takeuforward.org/plus/dsa/problems/traversal-techniques Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/-tgVpUgsQ5k https://www.techtube.co.in/tutorials/g-50-accounts-merge-dsu 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/FMwpt_aQOGw/maxresdefault.jpg G-50. Accounts Merge - DSU Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Accounts Merge - DSU https://takeuforward.org/plus/dsa/problems/accounts-merge Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/FMwpt_aQOGw https://www.techtube.co.in/tutorials/g-51-number-of-islands-ii-online-queries-dsu 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Rn6B-Q4SNyA/maxresdefault.jpg G-51. Number of Islands - II - Online Queries - DSU Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Number of Islands - II - Online Queries - DSU https://takeuforward.org/plus/dsa/problems/number-of-islands-ii Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/Rn6B-Q4SNyA https://www.techtube.co.in/tutorials/g-52-making-a-large-island-dsu 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/lgiz0Oup6gM/maxresdefault.jpg G-52. Making a Large Island - DSU Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Making a Large Island - DSU https://takeuforward.org/plus/dsa/problems/making-a-large-island Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/lgiz0Oup6gM https://www.techtube.co.in/tutorials/g-53-most-stones-removed-with-same-row-or-column-dsu 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/OwMNX8SPavM/maxresdefault.jpg G-53. Most Stones Removed with Same Row or Column - DSU Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Most Stones Removed with Same Row or Column - DSU https://takeuforward.org/plus/dsa/problems/most-stones-removed-with-same-row-or-column Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/OwMNX8SPavM https://www.techtube.co.in/tutorials/g-54-strongly-connected-components-kosarajus-algorithm 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/R6uoSjZ2imo/maxresdefault.jpg G-54. Strongly Connected Components - Kosaraju's Algorithm Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Strongly Connected Components - Kosaraju's Algorithm https://takeuforward.org/plus/dsa/problems/kosaraju's-algorithm Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/R6uoSjZ2imo https://www.techtube.co.in/tutorials/g-55-bridges-in-graph-using-tarjans-algorithm-of-time-in-and-low-time 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/qrAub5z8FeA/maxresdefault.jpg G-55. Bridges in Graph - Using Tarjan's Algorithm of time in and low time Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Bridges in Graph - Using Tarjan's Algorithm of time in and low time https://takeuforward.org/plus/dsa/problems/bridges-in-graph Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/qrAub5z8FeA https://www.techtube.co.in/tutorials/g-56-articulation-point-in-graph 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/j1QDfU21iZk/maxresdefault.jpg G-56. Articulation Point in Graph Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Articulation Point in Graph https://takeuforward.org/plus/dsa/problems/articulation-point-in-graph Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/j1QDfU21iZk https://www.techtube.co.in/tutorials/g-6-depth-first-search-dfs-c-and-java-traversal-technique-in-graphs 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Qzf1a--rhp8/maxresdefault.jpg G-6. Depth-First Search (DFS) | C++ and Java | Traversal Technique in Graphs Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Depth-First Search (DFS) | C++ and Java | Traversal Technique in Graphs https://takeuforward.org/plus/dsa/problems/traversal-techniques Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/Qzf1a--rhp8 https://www.techtube.co.in/tutorials/g-7-number-of-provinces-c-java-connected-components 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ACzkVtewUYA/maxresdefault.jpg G-7. Number of Provinces | C++ | Java | Connected Components Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Number of Provinces | C++ | Java | Connected Components https://takeuforward.org/plus/dsa/problems/number-of-provinces Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/ACzkVtewUYA https://www.techtube.co.in/tutorials/g-8-number-of-islands-number-of-connected-components-in-matrix-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/muncqlKJrH0/maxresdefault.jpg G-8. Number of Islands | Number of Connected Components in Matrix | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/muncqlKJrH0 https://www.techtube.co.in/tutorials/g-9-flood-fill-algorithm-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/C-2_uSRli8o/maxresdefault.jpg G-9. Flood Fill Algorithm | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Flood Fill Algorithm | C++ | Java https://takeuforward.org/plus/dsa/problems/flood-fill-algorithm Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/C-2_uSRli8o https://www.techtube.co.in/tutorials/gas-station-greedy-leetcode-134-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/lJwbPZGo05A/maxresdefault.jpg Gas Station - Greedy - Leetcode 134 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/gas-station 0:00 - Read the problem 1:40 - Drawing Explanation 12:15 - Coding Explanation leetcode 134 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #gas #station #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/lJwbPZGo05A https://www.techtube.co.in/tutorials/generate-all-balanced-parentheses 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/eyCj_u3PoJE/maxresdefault.jpg Generate all Balanced Parentheses Patreon Link: https://www.patreon.com/adityaVerma Video Pdf Notes And Code: https://www.patreon.com/posts/39477428 Problem Description: https://www.interviewbit.com/problems/generate-all-parentheses-ii/ Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses of length 2*n. For example, given n = 3, a solution set is: "((()))", "(()())", "(())()", "()(())", "()()()" . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/eyCj_u3PoJE https://www.techtube.co.in/tutorials/generate-parentheses-stack-leetcode-22 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/s9fokUqJ76A/maxresdefault.jpg Generate Parentheses - Stack - Leetcode 22 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/generate-parentheses 0:00 - Read the problem 1:30 - Drawing Explanation 9:55 - Coding Explanation leetcode 22 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #generate #parentheses #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/s9fokUqJ76A https://www.techtube.co.in/tutorials/golang-full-course-2026 2026-09-04 weekly 0.7 https://i.ytimg.com/vi/DR4QhvIlFfQ/maxresdefault.jpg Golang Full Course 2026 ⭐▬▬▬▬▬ JOIN ACEDEVHUB FULLSTACK COURSE WAITLIST (FREE) 👋 ▬▬▬▬▬⭐ https://acedevhub.com/courses ⭐▬▬▬▬▬ UDEMY AI COURSE COUPON CODE IF INTERESTED 👋 ▬▬▬▬▬⭐ 399 RS: https://www.udemy.com/course/production-ai-agents-with-javascript-langchain-langgraph/?couponCode=787C1EC0DBA1841EF577 479 RS: https://www.udemy.com/course/production-ai-agents-with-javascript-langchain-langgraph/?couponCode=E821BEE5AABA36C7ABAE ⭐▬▬▬▬▬ DOWNLOAD SOURCE CODE FOR FREE 👋 ▬▬▬▬▬⭐ https://acedevhub.com/projects/golang-full-course-2026 In this backend-focused Go (Golang) Full Course (2026), we’ll go from zero → real projects using Go 1.25, clean folder structure, and production-style patterns (without unnecessary complexity). What we’ll build ⚙️ Core Go foundations (types, control flow, slices/maps, functions) 📦 Real project structure (modules + packages that make sense) 🌐 HTTP server with net/http + JSON APIs 📡 HTTP client + JSON unmarshal from a public API 📝 Project 1: Gin + MongoDB Notes API (CRUD) 🔐 Project 2: Auth + Roles (JWT) + Cloudinary file upload ⚡ Concurrency essentials (goroutines, channels, context, sync) Everything is taught step-by-step with practical examples you’ll actually use in backend development. ⭐▬▬▬▬▬▬ TIMESTAMPS 👋 ▬▬▬▬▬▬⭐ 00:00 Introduction 03:33 Setup golang and writing first go code 11:43 Golang basics - variables, if else, for, switch statement 57:09 Arrays and Slices 01:21:47 Maps 01:38:52 Functions 01:54:32 Error handling and defer 02:16:16 Pointers 02:22:20 Structs 02:35:20 Go module 02:50:00 Http module, Working with JSON unmarshal and http client 03:55:13 Go rest api with Gin and CRUD 06:01:20 Go JWT authentication and RBAC 08:33:59 Go Concurrency 👋▬▬▬▬▬▬ BUY ME A COFFEE 🙂 ▬▬▬▬▬▬👋 https://www.buymeacoffee.com/sangammukh6 🔔▬▬▬▬▬▬ SUBSCRIBE FOR MORE BACKEND PROJECTS ▬▬▬▬▬▬🔔 https://www.youtube.com/channel/UCuWZvXIeoDzZKCzpTuC5krQ 👋 ▬▬▬▬▬▬ CONNECT WITH ME ▬▬▬▬▬▬👋 LinkedIn: https://www.linkedin.com/in/sangam-mukherjee-400488134/ Instagram: https://www.instagram.com/sangam_mukherjee/ #golang #go #goprogramming #programming #coding #tutorial #fullcourse #backend https://www.youtube.com/embed/DR4QhvIlFfQ https://www.techtube.co.in/tutorials/graph-valid-tree-leetcode-261-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/bXsUuownnoQ/maxresdefault.jpg Graph Valid Tree - Leetcode 261 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/valid-tree 0:00 - Read the problem 2:45 - Drawing Explanation 10:06 - Coding Explanation leetcode 261 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #graph #tree #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/bXsUuownnoQ https://www.techtube.co.in/tutorials/greatest-common-divisor-of-strings-leetcode-1071-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/i5I_wrbUdzM/maxresdefault.jpg Greatest Common Divisor of Strings - Leetcode 1071 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Solving Greatest Common Divisor of Strings Leetcode 1071, today's daily leetcode problem on January 31st. 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/greatest-common-divisor-of-strings 0:00 - Read the problem 1:10 - Drawing Explanation 5:32 - Coding Explanation leetcode 1071 #neetcode #leetcode #python https://www.youtube.com/embed/i5I_wrbUdzM https://www.techtube.co.in/tutorials/greatest-common-divisor-traversal-leetcode-2709-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/jZ-RVp5CVYY/maxresdefault.jpg Greatest Common Divisor Traversal - Leetcode 2709 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/greatest-common-divisor-traversal 0:00 - Read the problem 0:24 - Drawing Explanation 15:22 - Coding Explanation leetcode 2709 #neetcode #leetcode #python https://www.youtube.com/embed/jZ-RVp5CVYY https://www.techtube.co.in/tutorials/group-anagrams-categorize-strings-by-count-leetcode-49 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/vzdNOK2oB2E/maxresdefault.jpg Group Anagrams - Categorize Strings by Count - Leetcode 49 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Problem Link: https://neetcode.io/problems/anagram-groups 0:00 - Drawing solution 4:35 - Coding solution leetcode 49 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency/blob/master/Apple%20-%20LeetCode.pdf #string #anagram #python https://www.youtube.com/embed/vzdNOK2oB2E https://www.techtube.co.in/tutorials/guess-number-higher-or-lower-leetcode-374-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/xW4QsTtaCa4/maxresdefault.jpg Guess Number Higher or Lower - Leetcode 374 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/guess-number-higher-or-lower 0:00 - Read the problem 1:25 - Drawing Explanation 3:50 - Coding Explanation leetcode 374 #microsoft #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/xW4QsTtaCa4 https://www.techtube.co.in/tutorials/hackathon-to-internship-3-sde-roles-offered 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/0s-D8EvnYyY/maxresdefault.jpg Hackathon to Internship: 3 SDE Roles Offered 🏆 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course 📢 Big Announcements | BPL Winners, Internships, Course Update & Membership Milestone 🚀 In this video, I’m sharing 3 important announcements related to the Babua DSA Patterns Course 2025, the Babua Premiere League (BPL), and the future roadmap of the channel. 🏆 Announcement #1: BPL Winners & Internships The Babua Premiere League (BPL) hackathon was successfully completed with 50 strong submissions! Top performers were interviewed by an IT veteran with 25+ years of industry experience, and the winning team members have secured SDE internship opportunities. Special thanks to Sumanta Ranjan Das (Co-Founder & CTO at Boost.Money, ex-Intuit Director of Engineering) for mentoring and supporting industry-ready talent through this initiative Untitled-scene (1) 📘 Announcement #2: DSA Patterns Course Update Yes, the course pace has been slow — and I want to be transparent about it. The course will be completed, and the pace will increase soon. We’ve crossed 18,000 subscribers, and the support from this community is what keeps this going 💙 💎 Announcement #3: 200+ YouTube Members Our YouTube membership has crossed 200+ members — thank you for trusting the process even before the course is fully complete. Membership students get: Live support directly from me Faster doubt resolution Community-driven learning Early access to upcoming content (You can also join later, but live support is only available now.) 🎯 2025 Learning Roadmap We are going all-in on core CS & interview fundamentals: Time & Space Complexity Data Structures (Java, Python, C++, JavaScript) Topic-wise & Pattern-wise DSA DBMS, OS, CN Distributed Systems LLD & HLD Contests, daily challenges & consistent grinding If you want to build real engineering depth (not just solve LeetCode), this journey is for you. 👇 Join the community, stay consistent, and let’s grow together. 🔔 Subscribe for structured DSA + system design content 💬 Comment if you’re part of BPL / membership ❤️ Like if you support this learning movement CHAPTERS 00:00 - Introduction & Recap 00:27 - BPL Winners - Theory 02:43 - DSA Pattern is going slow - Theory 03:47 - YouTube membership has crossed 200+ members - Theory 04:22 - Goal of YouTube Membership - Theory 09:19 - Conclusion Hashtags: #DSA #DSAPatterns #CodingInterview #SoftwareEngineering #BPL #HackathonWinners #InternshipOpportunity #SDEInternship #SystemDesign #LLD #HLD #DistributedSystems #DataStructures #Algorithms #TimeComplexity #SpaceComplexity #JavaDSA #PythonDSA #CppDSA #JavascriptDSA #ComputerScience #CoreCS #DBMS #OperatingSystems #ComputerNetworks #PlacementPreparation #FAANGPreparation #ProductBasedCompanies #EngineeringStudents #CSStudents #CodingCommunity #YouTubeMembership #LearningCommunity #TechEducation #BabuaDSA Your Queries: DSA patterns data structures and algorithms coding interview preparation system design course LLD HLD system design DSA in Java DSA in Python DSA in C++ DSA in Javascript software engineering internship SDE internship India hackathon winners Babua Premiere League BPL hackathon DSA course 2025 placement preparation FAANG interview preparation core computer science DBMS OS CN distributed systems basics algorithm patterns coding for placements engineering students India Babua DSA course coding community YouTube membership #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/0s-D8EvnYyY https://www.techtube.co.in/tutorials/hand-of-straights-leetcode-846-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/amnrMCVd2YI/maxresdefault.jpg Hand of Straights - Leetcode 846 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/hand-of-straights 0:00 - Read the problem 2:55 - Drawing Explanation 12:17 - Coding Explanation leetcode 846 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/amnrMCVd2YI https://www.techtube.co.in/tutorials/happy-number-leetcode-202-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/ljz85bxOYJ0/maxresdefault.jpg Happy Number - Leetcode 202 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/non-cyclical-number 0:00- Understand problem 2:00 - Drawing solution 4:45 - Coding solution Leetcode 202 #Coding #Programming #CodingInterview #leetcode #neetcode https://www.youtube.com/embed/ljz85bxOYJ0 https://www.techtube.co.in/tutorials/hashing-maps-time-complexity-collisions-division-rule-of-hashing-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/KEs5UyBJ39g/maxresdefault.jpg Hashing | Maps | Time Complexity | Collisions | Division Rule of Hashing | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/KEs5UyBJ39g https://www.techtube.co.in/tutorials/hashing-technique-simplified 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/mFY0J5W8Udk/hqdefault.jpg Hashing Technique - Simplified Hashing Technique : its a searching technique, designed using mathematical model of functions. its fastest searching technique. ideal hashing takes O(1) https://www.youtube.com/embed/mFY0J5W8Udk https://www.techtube.co.in/tutorials/height-of-a-binary-tree 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/aqLTbtWh40E/maxresdefault.jpg Height of a Binary Tree How induction- hypothesis and base condition method can be applied to data structures like tree and linked list. Recursion is used frequently with data structures. Pdf Notes and Code: https://www.patreon.com/posts/38605654 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/aqLTbtWh40E https://www.techtube.co.in/tutorials/house-robber-ii-dynamic-programming-leetcode-213 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/rWAJCfYYOvM/maxresdefault.jpg House Robber II - Dynamic Programming - Leetcode 213 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/house-robber-ii 0:00 - Read the problem 1:27 - Drawing Explanation 6:00 - Coding Solution leetcode 213 This question was identified as a Google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclaimer: Some of the above links may be affiliate links. https://www.youtube.com/embed/rWAJCfYYOvM https://www.techtube.co.in/tutorials/house-robber-iii-tree-leetcode-337 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/nHR8ytpzz7c/maxresdefault.jpg House Robber III - Tree - Leetcode 337 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/house-robber-iii 0:00 - Read the problem 1:45 - Drawing Explanation 13:55 - Coding Solution leetcode 337 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #house #robber #python https://www.youtube.com/embed/nHR8ytpzz7c https://www.techtube.co.in/tutorials/house-robber-leetcode-198-python-dynamic-programming 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/73r3KWiEvyk/maxresdefault.jpg House Robber - Leetcode 198 - Python Dynamic Programming 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/house-robber 0:00 Conceptual 8:03 Coding optimal solution #python #neetcode #leetcode Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/73r3KWiEvyk https://www.techtube.co.in/tutorials/how-i-cleared-my-google-interviews-use-leetcode-effectively 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/waGfV-IoOt8/maxresdefault.jpg How I Cleared My Google Interviews - Use LeetCode Effectively! How I cleared my Google Interviews - use LeetCode effectively to improve problem solving skills! Interview Tips From My Google Recruiter: https://youtu.be/8HVwKVxdPxo ➡️ Interview preparation playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ ➡️ Download & Learn Teleport for Free: http://goteleport.com/kunal (Quickly access any computing resource anywhere) In this video we cover: - how to find problems - order of problems - what to do if you get stuck - best practices to find solutions - how to balance it with development - and share some resources for your interviews! ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00 Introduction 1:02 About Teleport 2:09 Java + DSA + Interview Preparation Bootcamp 3:20 How to find problems on LeetCode? 5:58 What to do if you get stuck? 7:34 Best practices to find solutions? 8:19 How to approach a problem? 11:17 What to do after completing the course? 13:01 Resources for Interview Preparation 14:41 Outro https://www.youtube.com/embed/waGfV-IoOt8 https://www.techtube.co.in/tutorials/how-to-design-apis-like-a-senior-engineer-rest-graphql-auth-security 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Rrd6xkyjPB8/maxresdefault.jpg How to Design APIs Like a Senior Engineer (REST, GraphQL, Auth, Security) Become a senior software engineer with a job guarantee: https://go.hayksimonyan.com/161-api-design Master the exact API design, security, and architecture skills to build scalable production systems. ⏱️ Timestamps: 0:00 Introduction 0:58 API Design Fundamentals 17:15 API Protocols 29:08 Transport Layer: TCP & UDP 34:19 RESTful API Design 49:01 GraphQL API Design 54:50 Authentication 1:15:48 Authorization 1:27:00 Security https://www.youtube.com/embed/Rrd6xkyjPB8 https://www.techtube.co.in/tutorials/how-to-setup-vs-code-for-dsa-and-cp-input-output-split-format 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/h3uDCJ5mvgw/maxresdefault.jpg How to setup VS code for DSA and CP | Input / Output split format Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/h3uDCJ5mvgw https://www.techtube.co.in/tutorials/huffman-coding-greedy-algorithm-text-compression 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/XLfgeaYHinM/maxresdefault.jpg Huffman Coding Greedy Algorithm | Text Compression In this tutorial, we delve into the fascinating world of text compression with Huffman Coding, a widely used greedy algorithm. Join us as we explore the theory behind Huffman Coding, its inner workings, and provide a practical demonstration of the code. Discover how this algorithm can efficiently compress text data and save valuable storage space! Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/HuffmanEncoding - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org =================================== Timestamps: 00:00 Theory 25:24 Code #dsa #placement https://www.youtube.com/embed/XLfgeaYHinM https://www.techtube.co.in/tutorials/hypothesis-induction-base-condition 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Xu5RqPdABRE/maxresdefault.jpg Hypothesis-Induction-Base Condition This is my first way to approach any recursive problem. I explain the concept using a simple example: Print 1 to n using recursion. Pdf Notes Link: https://www.patreon.com/posts/38570714 .CPP File Code: https://www.patreon.com/posts/38570789 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/Xu5RqPdABRE https://www.techtube.co.in/tutorials/if-dsa-feels-hard-for-you-watch-this-now 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/3B6vkQIexgU/maxresdefault.jpg 🔥If DSA Feels HARD for YOU, WATCH THIS NOW!!! PLATFORM LINK: https://app.nextgen-cto.in/login DSA feels hard when you don’t know **what to learn, in what order, and how much to practice**. In this video, I’ll show you how to navigate the **CTO Bhaiya channel** and use the available DSA playlists, patterns, problems, and revision resources to build a structured preparation plan. Stop randomly solving problems. Start learning DSA with a roadmap. 🚀 Hashtags: #DSA #DataStructuresAndAlgorithms #DSARoadmap #DSAForBeginners #LearnDSA #DSAForPlacements #PlacementPreparation #CodingInterview #CodingInterviewPreparation #DSAPatterns #ProblemSolving #LeetCode #LeetCodeIndia #DSAInHindi #CodingInHindi #CTOBhaiya #SoftwareEngineer #SDEPreparation #CodingPlacement #TechCareers Your Queries: DSA Data Structures and Algorithms DSA Roadmap DSA for Beginners DSA Preparation Learn DSA DSA Placement Preparation DSA for Placements Coding Interview Preparation DSA Patterns DSA Problem Solving LeetCode DSA DSA in Hindi DSA Hindi CTO Bhaiya CTO Bhaiya DSA DSA Course DSA Strategy How to Learn DSA DSA Practice Software Engineer Preparation Coding Interview Placement Preparation =========================== ➡️ Connect with me: LinkedIn : https://www.linkedin.com/in/anuj-kumar-9a188968/ Instagram : https://www.instagram.com/mr.anuj.brandy/ Discord : https://discord.com/invite/bbJXxFcauK =========================== https://www.youtube.com/embed/3B6vkQIexgU https://www.techtube.co.in/tutorials/implement-lfu-cache-in-cjava-leetcodehard 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/mzqHlAW7jeE/maxresdefault.jpg Implement LFU cache in C++/Java | Leetcode(Hard) Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/mzqHlAW7jeE https://www.techtube.co.in/tutorials/implement-queue-using-stacks-leetcode-232-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/eanwa3ht3YQ/maxresdefault.jpg Implement Queue using Stacks - Leetcode 232 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/implement-queue-using-stacks 0:00 - Read the problem 0:36 - Drawing Explanation 12:11 - Coding Explanation leetcode 232 #neetcode #leetcode #python https://www.youtube.com/embed/eanwa3ht3YQ https://www.techtube.co.in/tutorials/implement-stack-using-queues-leetcode-225-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/rW4vm0-DLYc/maxresdefault.jpg Implement Stack using Queues - Leetcode 225 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/implement-stack-using-queues 0:00 - Read the problem 0:30 - Drawing Explanation 4:45 - Coding Explanation leetcode 225 #stack #queue #python https://www.youtube.com/embed/rW4vm0-DLYc https://www.techtube.co.in/tutorials/implement-trie-prefix-tree-leetcode-208 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/oobqoCJlHA0/maxresdefault.jpg Implement Trie (Prefix Tree) - Leetcode 208 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/implement-prefix-tree 0:00 - Read the problem 1:53 - Drawing Explanation 11:40 - Coding Explanation leetcode 208 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #trie #prefix #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/oobqoCJlHA0 https://www.techtube.co.in/tutorials/insert-greatest-common-divisors-in-linked-list-leetcode-2807-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/SS_IlBrocYQ/maxresdefault.jpg Insert Greatest Common Divisors in Linked List - Leetcode 2807 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/insert-greatest-common-divisors-in-linked-list 0:00 - Read the problem 2:35 - Proving Euclid's Algorithm 10:05 - Coding Explanation leetcode 2807 #neetcode #leetcode #python https://www.youtube.com/embed/SS_IlBrocYQ https://www.techtube.co.in/tutorials/insert-interval-leetcode-57-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/A8NUOmlwOlM/maxresdefault.jpg Insert Interval - Leetcode 57 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/insert-new-interval 0:00 - Read the problem 2:17 - Drawing Explanation 7:31 - Coding Explanation leetcode 57 This question was identified as a microsoft interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/A8NUOmlwOlM https://www.techtube.co.in/tutorials/insert-into-a-binary-search-tree-leetcode-701-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Cpg8f79luEA/maxresdefault.jpg Insert into a Binary Search Tree - Leetcode 701 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/insert-into-a-binary-search-tree 0:00 - Read the problem 0:30 - Drawing Explanation 5:58 - Coding Explanation leetcode 701 #neetcode #leetcode #python https://www.youtube.com/embed/Cpg8f79luEA https://www.techtube.co.in/tutorials/insertion-sort-algorithm-theory-code 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/By_5-RRqVeE/maxresdefault.jpg Insertion Sort Algorithm - Theory + Code This is the third video in the sorting algorithm series where we cover insertion sort in depth. We look at how the algorithm works, the complexity analysis, optimisation, and code. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00 Introduction 0:40 Insertion Sort 16:23 Complexity of Insertion Sort 16:43 Worst Case 19:07 Best Case 21:03 Why use Insertion Sort? 24:24 Code for Insertion Sort 30:18 Outro #sorting #placement #dsa #interviews https://www.youtube.com/embed/By_5-RRqVeE https://www.techtube.co.in/tutorials/integer-break-dynamic-programming-leetcode-343-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/in6QbUPMJ3I/maxresdefault.jpg Integer Break - Dynamic Programming - Leetcode 343 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/integer-break 0:00 - Read the problem 1:52 - Recursive Solution 10:18 - DP Solution leetcode 343 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #amazon #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/in6QbUPMJ3I https://www.techtube.co.in/tutorials/interleaving-strings-dynamic-programming-leetcode-97-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/3Rw3p9LrgvE/maxresdefault.jpg Interleaving Strings - Dynamic Programming - Leetcode 97 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/interleaving-string 0:00 - Read the problem 4:13 - Drawing Explanation 12:35 - Coding Explanation leetcode 97 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #dynamic #programming #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/3Rw3p9LrgvE https://www.techtube.co.in/tutorials/introduction-to-arrays-and-arraylist-in-java 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/n60Dn0UsbEk/maxresdefault.jpg Introduction to Arrays and ArrayList in Java In this video we cover Arrays and ArrayList in Java from scratch. We dive deep into how it works, the memory management, input/output, multidimensional arrays, dynamic arrays, working with functions, and solve some questions. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00 Introduction ‌‍‍‍‌‌‍‍ ‌‍‍‌‌‌‌‍ ‌‍‍‌‍‍‌‍ ‌‍‍‌‍‌‍‌ ‌‍‍‌‍‍‍‌ ‌‌‍‍‌‌‌‌ ‌‌‍‍‍‌‌‌ 1:22 Why we need Arrays? 2:58 What is an Array? 3:13 Syntax of an Array 4:26 Direct hit Program : Store 5 Roll Numbers 6:44 How does Array works? 8:42 Internal Working of an Array 10:32 Dynamic Memory Allocation 12:00 Internal Representation of Array 13:06 Continuity of an Array 16:25 Index of an Array 19:53 String Array 20:42 What is null in Java? 23:30 null is used as a default 27:55 Array Input 31:19 for-each loop 33:15 toString() Method 34:52 Array of Objects 36:25 Storage of Objects in Heap 40:21 Array Passing in Function 42:32 Multidimensional Arrays 43:36 Syntax of a 2D Array 45:20 Internal Working of a 2D Array 50:16 2D Array Input 1:01:06 2D Array Output 1:07:05 Dynamic Arrays 1:17:22 Array Functions 1:21:08 Internal Working of ArrayList 1:33:21 Questions 1:33:30 Q1 : Swaping Values in an Array 1:35:20 Q2 : Maximum Value of an Array 1:40:45 Q3 : Reversing an Array 1:44:20 Outro #arrays #placement #dsa #interviews https://www.youtube.com/embed/n60Dn0UsbEk https://www.techtube.co.in/tutorials/introduction-to-hashmap-hashtable-in-java 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/XLbvmMz8Fr8/maxresdefault.jpg Introduction to HashMap & HashTable in Java In this video, we'll dive deep into the world of hashmaps, exploring their inner workings, techniques like chaining and open addressing, and even delve into hashmap implementation in Java. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/Hashmaps - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org =================================== Timestamps: 00:00:00 Introduction 00:10:25 How Hashmaps work 00:25:46 Chaining 00:49:14 Open addressing 01:06:23 Hashmaps in Java 01:17:09 Implementation 01:38:40 Closing remarks #placement #hashmap #dsa https://www.youtube.com/embed/XLbvmMz8Fr8 https://www.techtube.co.in/tutorials/introduction-to-heap-data-structure-priority-queue-heapsort-tutorial 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Qf-TDPr0nYw/maxresdefault.jpg Introduction to Heap Data Structure + Priority Queue + Heapsort Tutorial In this video, we'll delve into the fundamentals of the heap data structure, explore priority queues, and walk you through a comprehensive heapsort tutorial. Whether you're preparing for a coding interview or just eager to expand your data structure knowledge, this tutorial covers theory, practical coding examples, and an in-depth look at how it all comes together. 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/Heaps-1 - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org ====================================================================== Timestamps: 0:00:00 Introduction 0:01:58 Why heaps? 0:10:02 How heaps work 0:21:40 Inserting items in a heap 0:28:20 Removing items from a heap 0:35:15 Code 0:50:32 Heapsort 0:55:45 Priority Queue 0:58:03 Creating a heap from an unsorted array 1:09:14 Closing remarks #heap #placement #dsa #computerscience #faang https://www.youtube.com/embed/Qf-TDPr0nYw https://www.techtube.co.in/tutorials/introduction-to-java-architecture-installation 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/4EP8YzcN0hQ/maxresdefault.jpg Introduction to Java - Architecture & Installation In this video we learn about the fundamentals of Java. How it works, the architecture, code execution, every single step in detail. We also cover the installation of tools that are required to write code in Java. Software download links: - https://www.jetbrains.com/idea/download - https://www.oracle.com/java/technologies/javase-jdk16-downloads.html Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00 Introduction‌‍‍‍‌‌‍‍ ‌‍‍‌‍ ‌‍‍‌‍‍‌‍ ‌‍‍‌‍‌‍‌ ‌‍‍‌‍‍‍‌ ‌‌‍‍‌ ‌‌‍‍‍ 0:47 Why we use Programming Languages 1:33 How Java Executes? 2:02 .java file (Human Readable) 2:16 .class file (Byte Code) 3:58 Why Java is Platform Independent? 5:14 More about Platform Independence 9:36 Architecture of Java 10:35 JDK 12:12 JRE 13:48 Explanation of Some Terms 13:55 Compile Time 14:03 Runtime 14:10 How JVM Works? (Class Loader) 19:07 JVM Execution 21:30 Working of Java Architecture 23:19 JRE vs JVM 24:46 Tools Required to Start Programming in Java 27:08 Outro #java #placement #dsa #interviews https://www.youtube.com/embed/4EP8YzcN0hQ https://www.techtube.co.in/tutorials/introduction-to-programming-types-of-languages-memory-management 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/wn49bJOYAZM/maxresdefault.jpg Introduction to Programming - Types of Languages, Memory Management In this video we discuss about the types of programming languages along with how memory management works. We cover: - Procedural vs Functional vs Object Oriented Languages - Static vs Dynamic memory allocation - Objects and references Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00 Introduction 0:52 What are Programming Languages 2:51 Types of Languages 3:01 Procedural Language 4:38 Functional Language 9:01 Object Oriented Languages 14:08 Different Languages can be of Different Types 16:20 Static vs Dynamic Languages 21:44 Error in Dynamic Languages 22:53 Error in Static Languages 24:48 Stack and Heap Memory 25:11 Objects (Not Primitives!) and Reference Variables 27:19 Important Example Memory 33:50 Garbage Collection 38:00 Outro #placement #dsa #interviews https://www.youtube.com/embed/wn49bJOYAZM https://www.techtube.co.in/tutorials/introduction-to-recursion-learn-in-the-best-way 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/M2uO2nMT0Bk/maxresdefault.jpg Introduction to Recursion - Learn In The Best Way This is by far one of the best Introduction to #Recursion tutorial that you can watch on the internet. Recursion is overwhelming at first for a lot of folks. In this tutorial we dive through the basics, learn how to visualise problems, even the minute details, and I share with you some of the best practices to master recursion. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 00:00:00 Introduction 00:06:29 Prerequisites 00:06:50 E1 : Message Program 00:13:03 E2 : Numbers Program 00:17:57 Working of function calls 00:30:02 What is Recursion? 00:31:10 Recursive Function for E2 00:35:35 Internal Working of Recursive Function 00:37:53 Base Condition in Recursion 00:45:36 Definition of Recursion 00:45:52 Use of Recursion 00:50:48 Visualising Recursion (Recursion Tree) 00:53:01 Q1 : Fibonacci Numbers 00:59:31 Identifying Recursion problem 00:59:49 Finding Base Condition 01:02:28 Code for Q1 01:13:01 Tail Recursion 01:13:53 Best Approach for Recursion Problems 01:15:12 Understanding Recursion Tree 01:22:19 Key areas to be focused for Recursion 01:24:26 Q2 : Binary Search 01:27:54 Types of Recurrence Relation 01:34:07 Important Tip 01:38:04 When to take which variable? 01:44:33 Recursion Tree for Binary Search 01:50:28 Outro #placement #dsa #interviews https://www.youtube.com/embed/M2uO2nMT0Bk https://www.techtube.co.in/tutorials/invert-binary-tree-depth-first-search-leetcode-226 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/OnSn2XEQ4MY/maxresdefault.jpg Invert Binary Tree - Depth First Search - Leetcode 226 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/invert-a-binary-tree 0:00 - Read the problem 2:05 - Coding Explanation leetcode 226 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #invert #tree #python https://www.youtube.com/embed/OnSn2XEQ4MY https://www.techtube.co.in/tutorials/ipo-leetcode-502-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/1IUzNJ6TPEM/maxresdefault.jpg IPO - Leetcode 502 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/ipo 0:00 - Read the problem 1:15 - Drawing Explanation 7:20 - Coding Explanation leetcode 502 #neetcode #leetcode #python https://www.youtube.com/embed/1IUzNJ6TPEM https://www.techtube.co.in/tutorials/island-perimeter-graph-leetcode-463 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/fISIuAFRM2s/maxresdefault.jpg Island Perimeter - Graph - Leetcode 463 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/island-perimeter 0:00 - Drawing Explanation 7:50 - Coding Solution leetcode 463 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #graph #perimeter #python https://www.youtube.com/embed/fISIuAFRM2s https://www.techtube.co.in/tutorials/iterative-recursive-binary-tree-inorder-traversal-leetcode-94-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/g_S5WuasWUE/maxresdefault.jpg Iterative & Recursive - Binary Tree Inorder Traversal - Leetcode 94 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/binary-tree-inorder-traversal 0:00 - Read the problem 0:49 - Recursive Explanation 2:43 - Recursive Coding 4:40 - Iterative Explanation 11:48 - Iterative Coding leetcode 94 #apple #interview #python https://www.youtube.com/embed/g_S5WuasWUE https://www.techtube.co.in/tutorials/java-vs-c-for-data-structures-algorithms 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Nckx9qMy_kw/maxresdefault.jpg Java vs C++ for Data Structures & Algorithms Which language should you start with when learning Data Structures & Algorithms? Java and C++ are the two most popular ones and the ones regarding which I have received the most questions. In this video, I have answered which language you should go with amongst these two and why. ➡️ Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ ➡️ Connect with me: https://www.techwithkunal.com #java #cpp #dsa https://www.youtube.com/embed/Nckx9qMy_kw https://www.techtube.co.in/tutorials/josephus-problem-game-of-death-in-a-circle-execution-in-circle 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ULUNeD0N9yI/maxresdefault.jpg Josephus Problem | Game of Death in a circle | Execution in Circle Patreon Link: https://www.patreon.com/adityaVerma Video Pdf Notes And Code: https://www.patreon.com/posts/39839473 IBH Video: https://youtu.be/Xu5RqPdABRE Sort an Array Using Recursion: https://youtu.be/AZ4jEY_JAVc Problem Description: https://practice.geeksforgeeks.org/problems/game-of-death-in-a-circle/0 There are n people standing in a circle (numbered clockwise 1 to n) waiting to be executed. The counting begins at point 1 in the circle and proceeds around the circle in a fixed direction (clockwise). In each step, a certain number of people are skipped and the next person is executed. The elimination proceeds around the circle (which is becoming smaller and smaller as the executed people are removed), until only the last person remains, who is given freedom. Given the total number of persons n and a number k which indicates that k-1 persons are skipped and kth person is killed in circle. The task is to choose the place in the initial circle so that you are the last one remaining and so survive. Consider if n = 5 and k = 2, then the safe position is 3. Firstly, the person at position 2 is killed, then person at position 4 is killed, then person at position 1 is killed. Finally, the person at position 5 is killed. So the person at position 3 survives. . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/ULUNeD0N9yI https://www.techtube.co.in/tutorials/jump-game-greedy-leetcode-55 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Yan0cv2cLy8/maxresdefault.jpg Jump Game - Greedy - Leetcode 55 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/jump-game 0:00 - Read the problem 2:50 - Brute Force Explanation 10:10 - Greedy Explanation 14:05 - Coding Explanation leetcode 55 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #greedy #array #python https://www.youtube.com/embed/Yan0cv2cLy8 https://www.techtube.co.in/tutorials/jump-game-ii-greedy-leetcode-45-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/dJ7sWiOoK7g/maxresdefault.jpg Jump Game II - Greedy - Leetcode 45 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/jump-game-ii 0:00 - Read the problem 2:06 - Drawing Explanation 7:05 - Coding Explanation leetcode 45 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python https://www.youtube.com/embed/dJ7sWiOoK7g https://www.techtube.co.in/tutorials/jump-game-vii-leetcode-1871-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/v1HpZUnQ4Yo/maxresdefault.jpg Jump Game VII - Leetcode 1871 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/jump-game-vii 0:00 - Read the problem 1:30 - Drawing Explanation 8:57 - Coding Explanation leetcode 1871 - jump game 7 #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/v1HpZUnQ4Yo https://www.techtube.co.in/tutorials/k-closest-points-to-origin-heap-priority-queue-leetcode-973-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/rI2EBUEMfTk/maxresdefault.jpg K Closest Points to Origin - Heap / Priority Queue - Leetcode 973 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/k-closest-points-to-origin 0:00 - Read the problem 4:23 - Drawing Explanation 7:00 - Coding Explanation leetcode 973 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #heap #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/rI2EBUEMfTk https://www.techtube.co.in/tutorials/kadanes-algorithm-maximum-subarray-sum-finding-and-printing 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/AHZpyENo7k4/maxresdefault.jpg Kadane's Algorithm | Maximum Subarray Sum | Finding and Printing Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 1.Kadane's Algorithm, maximum subarray sum - https://takeuforward.org/plus/dsa/problems/kadane's-algorithm 2.Print subarray with maximum subarray sum (extended version of above problem) https://takeuforward.org/plus/dsa/problems/kadane's-algorithm Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/AHZpyENo7k4 https://www.techtube.co.in/tutorials/karp-rabin-string-matching-algorithm-substring-search-pattern 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/swciWFPq3NE/maxresdefault.jpg Karp-Rabin String Matching Algorithm | Substring Search Pattern Discover the inner workings of search engines like Google! In this video, we'll explore the Karp-Rabin algorithm, a powerful technique for efficient string searching using hashing. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/KarpRabin-Hashmaps - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org #dsa #placement https://www.youtube.com/embed/swciWFPq3NE https://www.techtube.co.in/tutorials/koko-eating-bananas-binary-search-leetcode-875-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/U2SozAs9RzA/maxresdefault.jpg Koko Eating Bananas - Binary Search - Leetcode 875 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/eating-bananas 0:00 - Read the problem 1:40 - Intuition 6:55 - Drawing Explanation 12:55 - Coding Explanation leetcode 875 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #binary #search #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/U2SozAs9RzA https://www.techtube.co.in/tutorials/kth-largest-element-in-a-stream-leetcode-703-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/hOjcdrqMoQ8/maxresdefault.jpg Kth Largest Element in a Stream - Leetcode 703 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/kth-largest-integer-in-a-stream 0:00 - Read the problem 2:20 - Drawing Explanation 8:10 - Coding Explanation leetcode 703 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/hOjcdrqMoQ8 https://www.techtube.co.in/tutorials/kth-largest-element-in-an-array-quick-select-leetcode-215-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/XEmy13g1Qxc/maxresdefault.jpg Kth Largest Element in an Array - Quick Select - Leetcode 215 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/kth-largest-element-in-an-array 0:00 - Read the problem 3:39 - Drawing Explanation 11:40 - Time Complexity 13:25 - Coding Explanation leetcode 215 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #quick #select #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/XEmy13g1Qxc https://www.techtube.co.in/tutorials/kth-smallest-element-in-a-bst-google-amazon-facebook-interview-question 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/guzgnCSafg4/maxresdefault.jpg Kth Smallest Element in a BST - Google, Amazon, Facebook Interview Question In this video, we'll tackle the Kth smallest element in a binary tree, a frequently asked question in Amazon, Google, and Facebook interviews. 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Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/AdvanceTreeQuestions - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org #dsa #placement #leetcode https://www.youtube.com/embed/guzgnCSafg4 https://www.techtube.co.in/tutorials/kth-smallest-element-in-a-bst-leetcode-230-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/5LUXSvjmGCw/maxresdefault.jpg Kth Smallest Element in a BST - Leetcode 230 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/kth-smallest-integer-in-bst 0:00 - Drawing Explanation 7:00 - Coding Solution leetcode 230 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #kth #bst #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/5LUXSvjmGCw https://www.techtube.co.in/tutorials/kth-symbol-in-grammar 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/5P84A0YCo_Y/maxresdefault.jpg Kth Symbol in Grammar Problem Description: https://leetcode.com/problems/k-th-symbol-in-grammar/ On the first row, we write a 0. Now in every subsequent row, we look at the previous row and replace each occurrence of 0 with 01, and each occurrence of 1 with 10. Given row N and index K, return the K-th indexed symbol in row N. (The values of K are 1-indexed.) (1 indexed). The Notes that I taught in the video and the Working Code (if any) will be available on my Patreon page under the "Notes, Code And Support" tier. 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Checkout the problem link 👇🏼 Maximal Rectangle | Stack and Queue Playlist https://takeuforward.org/plus/dsa/problems/maximum-rectangles Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/ttVu6G7Ayik https://www.techtube.co.in/tutorials/l13-preorder-inorder-postorder-traversals-in-one-traversal-c-java-stack-binary-trees 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ySp2epYvgTE/maxresdefault.jpg L13. Preorder Inorder Postorder Traversals in One Traversal | C++ | Java | Stack | Binary Trees Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. 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Find the starting point of the Loop/Cycle in LinkedList | Multiple Approaches https://takeuforward.org/plus/dsa/problems/find-the-starting-point-in-ll Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/2Kd0KKmmHFc https://www.techtube.co.in/tutorials/l17-maximum-path-sum-in-binary-tree-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/WszrfSwMz58/maxresdefault.jpg L17. Maximum Path Sum in Binary Tree | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/YitR4dQsddE https://www.techtube.co.in/tutorials/l19-zig-zag-or-spiral-traversal-in-binary-tree-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/3OXWEdlIGl4/maxresdefault.jpg L19. Zig-Zag or Spiral Traversal in Binary Tree | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/ctCpP0RFDFc https://www.techtube.co.in/tutorials/l2-check-for-balanced-parentheses-stack-and-queue 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/xwjS0iZhw4I/maxresdefault.jpg L2. Check for Balanced Parentheses | Stack and Queue Check out TUF+: https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 L2. Check for Balanced Parentheses | Stack and Queue https://takeuforward.org/plus/dsa/problems/balanced-paranthesis Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/xwjS0iZhw4I https://www.techtube.co.in/tutorials/l2-deletion-and-insertion-in-ll-8-problems 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/VaECK03Dz-g/maxresdefault.jpg L2. Deletion and Insertion in LL | 8 Problems Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 L2. 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Checkout the problem link 👇🏼 Boundary Traversal in Binary Tree | C++ | Java https://takeuforward.org/plus/dsa/problems/boundary-traversal Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/0ca1nvR0be4 https://www.techtube.co.in/tutorials/l20-remove-duplicates-from-sorted-dll 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/YJKVTnOJXSY/maxresdefault.jpg L20. Remove duplicates from sorted DLL Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 L20. Remove duplicates from sorted DLL https://takeuforward.org/plus/dsa/problems/remove-duplicated-from-sorted-dll Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/YJKVTnOJXSY https://www.techtube.co.in/tutorials/l21-reverse-nodes-in-k-group-size-of-linkedlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/lIar1skcQYI/maxresdefault.jpg L21. Reverse Nodes in K Group Size of LinkedList Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 L21. Reverse Nodes in K Group Size of LinkedList https://takeuforward.org/plus/dsa/problems/reverse-ll-in-group-of-given-size-k Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/lIar1skcQYI https://www.techtube.co.in/tutorials/l21-vertical-order-traversal-of-binary-tree-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/q_a6lpbKJdw/maxresdefault.jpg L21. Vertical Order Traversal of Binary Tree | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Vertical Order Traversal of Binary Tree | C++ | Java https://takeuforward.org/plus/dsa/problems/vertical-order-traversal Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/q_a6lpbKJdw https://www.techtube.co.in/tutorials/l22-rotate-a-linkedlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/uT7YI7XbTY8/maxresdefault.jpg L22. Rotate a LinkedList Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 L22. Rotate a LinkedList https://takeuforward.org/plus/dsa/problems/rotate-a-ll Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/uT7YI7XbTY8 https://www.techtube.co.in/tutorials/l22-top-view-of-binary-tree-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Et9OCDNvJ78/maxresdefault.jpg L22. Top View of Binary Tree | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Checkout the problem link 👇🏼 Bottom View of Binary Tree | C++ | Java https://takeuforward.org/plus/dsa/problems/bottom-view-of-bt Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/0FtVY6I4pB8 https://www.techtube.co.in/tutorials/l23-merge-two-sorted-linked-lists 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/jXu-H7XuClE/maxresdefault.jpg L23. Merge two sorted Linked Lists Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Checkout the problem link 👇🏼 Right/Left View of Binary Tree | C++ | Java https://takeuforward.org/plus/dsa/problems/right-left-view-of-bt Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/KV4mRzTjlAk https://www.techtube.co.in/tutorials/l25-check-for-symmetrical-binary-trees-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/nKggNAiEpBE/maxresdefault.jpg L25. Check for Symmetrical Binary Trees | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Sort a Linked List | Merge Sort and Brute Force https://takeuforward.org/plus/dsa/problems/sort-ll Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/8ocB7a_c-Cc https://www.techtube.co.in/tutorials/l27-clone-a-linkedlist-with-next-and-random-pointers-copy-list-with-random-pointers 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/q570bKdrnlw/maxresdefault.jpg L27. Clone a LinkedList with Next and Random Pointers | Copy List with Random Pointers Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Checkout the problem link 👇🏼 Maximum Width of Binary Tree | C++ | Java https://takeuforward.org/plus/dsa/problems/maximum-width-of-bt Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/ZbybYvcVLks https://www.techtube.co.in/tutorials/l29-children-sum-property-in-binary-tree-on-approach-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/fnmisPM6cVo/maxresdefault.jpg L29. Children Sum Property in Binary Tree | O(N) Approach | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/MJcckSfoYdI https://www.techtube.co.in/tutorials/l3-introduction-to-doubly-linkedlist-insertions-and-deletions 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/0eKMU10uEDI/maxresdefault.jpg L3. Introduction to Doubly LinkedList | Insertions and Deletions Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 L3. Introduction to Doubly LinkedList | Insertions and Deletions https://takeuforward.org/plus/dsa/problems/introduction-to-doubly-ll https://takeuforward.org/plus/dsa/problems/insert-node-before-head-in-dll https://takeuforward.org/plus/dsa/problems/delete-head-of-dll Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/0eKMU10uEDI https://www.techtube.co.in/tutorials/l3-longest-substring-without-repeating-characters-2-pointers-and-sliding-window-playlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/-zSxTJkcdAo/maxresdefault.jpg L3. Longest Substring Without Repeating Characters | 2 Pointers and Sliding Window Playlist Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Checkout the problem link 👇🏼 Shortest Job First (or SJF) CPU Scheduling https://takeuforward.org/plus/dsa/problems/shortest-job-first Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/3-QbX1iDbXs https://www.techtube.co.in/tutorials/l30-print-all-the-nodes-at-a-distance-of-k-in-binary-tree-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/i9ORlEy6EsI/maxresdefault.jpg L30. Print all the Nodes at a distance of K in Binary Tree | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Print all the Nodes at a distance of K in Binary Tree | C++ | Java https://takeuforward.org/plus/dsa/problems/print-all-nodes-at-a-distance-of-k-in-bt Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/i9ORlEy6EsI https://www.techtube.co.in/tutorials/l31-minimum-time-taken-to-burn-the-binary-tree-from-a-node-c-java 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/2r5wLmQfD6g/maxresdefault.jpg L31. Minimum time taken to BURN the Binary Tree from a Node | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. 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Checkout the problem link 👇🏼 Count total Nodes in a COMPLETE Binary Tree | O(Log^2 N) Approach | C++ | Java https://takeuforward.org/plus/dsa/problems/count-total-nodes-in-a-complete-bt Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/u-yWemKGWO0 https://www.techtube.co.in/tutorials/l33-requirements-needed-to-construct-a-unique-binary-tree-theory 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/9GMECGQgWrQ/maxresdefault.jpg L33. Requirements needed to construct a Unique Binary Tree | Theory Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. 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Largest BST in Binary Tree Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Largest BST in Binary Tree https://takeuforward.org/plus/dsa/problems/largest-bst-in-binary-tree Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/X0oXMdtUDwo https://www.techtube.co.in/tutorials/l6-inorder-traversal-of-binary-tree-c-java-code-explanation 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Z_NEgBgbRVI/maxresdefault.jpg L6. 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Checkout the problem link 👇🏼 Longest Substring With At Most K Distinct Characters https://takeuforward.org/plus/dsa/problems/longest-substring-with-at-most-k-distinct-characters Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/teM9ZsVRQyc https://www.techtube.co.in/tutorials/l6-next-greater-element-ii-stack-and-queue-playlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/7PrncD7v9YQ/maxresdefault.jpg L6. Next Greater Element - II | Stack and Queue Playlist Check out TUF+: https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Odd Even Linked List | Multiple Approaches https://takeuforward.org/plus/dsa/problems/segregate-odd-and-even-nodes-in-ll Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/qf6qp7GzD5Q https://www.techtube.co.in/tutorials/l6-sieve-of-eratosthenes-maths-playlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/g5Fuxn_AvSk/maxresdefault.jpg L6. Sieve of Eratosthenes | Maths Playlist Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 L6. Sieve of Eratosthenes | Maths Playlist https://takeuforward.org/plus/dsa/problems/count-primes-in-range-l-to-r Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/g5Fuxn_AvSk https://www.techtube.co.in/tutorials/l7-count-prime-in-a-range-l-r-maths-playlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/os82DjD2-MA/maxresdefault.jpg L7. Count Prime in a range L-R | Maths Playlist Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/os82DjD2-MA https://www.techtube.co.in/tutorials/l7-n-meeting-in-one-room-greedy-algorithms-playlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/mKfhTotEguk/maxresdefault.jpg L7. N Meeting in One Room | Greedy Algorithms Playlist Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. 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Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Number of Substrings Containing All Three Characters https://takeuforward.org/plus/dsa/problems/number-of-substrings-containing-all-three-characters Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/xtqN4qlgr8s https://www.techtube.co.in/tutorials/l7-postorder-traversal-of-binary-tree-c-java-code-explanation 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/COQOU6klsBg/maxresdefault.jpg L7. Postorder Traversal of Binary Tree | C++ | Java | Code Explanation Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Postorder Traversal of Binary Tree | C++ | Java | Code Explanation https://takeuforward.org/plus/dsa/problems/postorder-traversal Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/COQOU6klsBg https://www.techtube.co.in/tutorials/l7-previous-smaller-element-stack-and-queue-playlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/zMdbdGJNlh4/maxresdefault.jpg L7. Previous Smaller Element | Stack and Queue Playlist Check out TUF+: https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/zMdbdGJNlh4 https://www.techtube.co.in/tutorials/l7-sort-a-linkedlist-of-0s-1s-and-2s-multiple-approaches 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/gRII7LhdJWc/maxresdefault.jpg L7. 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Level Order Traversal of Binary Tree | BFS | C++ | Java Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Level Order Traversal of Binary Tree | BFS | C++ | Java https://takeuforward.org/plus/dsa/problems/level-order-traversal Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/EoAsWbO7sqg https://www.techtube.co.in/tutorials/l8-longest-repeating-character-replacement-2-pointers-and-sliding-window-playlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/_eNhaDCr6P0/maxresdefault.jpg L8. 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Non Overlapping Intervals | Greedy Algorithms Playlist Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Non Overlapping Intervals https://takeuforward.org/plus/dsa/problems/non-overlapping-intervals Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/HDHQ8lAWakY https://www.techtube.co.in/tutorials/l8-remove-nth-node-from-the-end-of-the-linkedlist-multiple-approaches 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/3kMKYQ2wNIU/maxresdefault.jpg L8. Remove Nth Node from the end of the LinkedList | Multiple Approaches Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 L8. Remove Nth Node from the end of the LinkedList | Multiple Approaches https://takeuforward.org/plus/dsa/problems/remove-nth-node-from-the-back-of-the-ll Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/3kMKYQ2wNIU https://www.techtube.co.in/tutorials/l8-smallest-prime-factor-spf-prime-factorisation-query-based-problem-maths-playlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/glKWkmKFlMw/maxresdefault.jpg L8. Smallest Prime Factor (SPF) | Prime Factorisation | Query Based Problem | Maths Playlist Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. 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Trapping Rainwater | 2 Approaches | Stack and Queue Playlist Check out TUF+: https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 L8. Trapping Rainwater | 2 Approaches | Stack and Queue Playlist https://takeuforward.org/plus/dsa/problems/trapping-rainwater Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/1_5VuquLbXg https://www.techtube.co.in/tutorials/l9-binary-subarrays-with-sum-2-pointers-and-sliding-window-playlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/XnMdNUkX6VM/maxresdefault.jpg L9. Binary Subarrays With Sum | 2 Pointers and Sliding Window Playlist Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Binary Subarrays With Sum https://takeuforward.org/plus/dsa/problems/binary-subarrays-with-sum Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/XnMdNUkX6VM https://www.techtube.co.in/tutorials/l9-insert-intervals-greedy-algorithms-playlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/xxRE-46OCC8/maxresdefault.jpg L9. Insert Intervals | Greedy Algorithms Playlist Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Insert Intervals https://takeuforward.org/plus/dsa/problems/insert-interval Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/xxRE-46OCC8 https://www.techtube.co.in/tutorials/l9-iterative-preorder-traversal-in-binary-tree-c-java-stack 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Bfqd8BsPVuw/maxresdefault.jpg L9. Iterative Preorder Traversal in Binary Tree | C++ | Java | Stack Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Iterative Preorder Traversal in Binary Tree https://takeuforward.org/plus/dsa/problems/preorder-traversal Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/Bfqd8BsPVuw https://www.techtube.co.in/tutorials/l9-reverse-a-linkedlist-iterative-and-recursive 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/D2vI2DNJGd8/maxresdefault.jpg L9. Reverse a LinkedList | Iterative and Recursive Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 L9. Reverse a LinkedList | Iterative and Recursive https://takeuforward.org/plus/dsa/problems/reverse-a-ll Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/D2vI2DNJGd8 https://www.techtube.co.in/tutorials/l9-sum-of-subarray-minimum-stack-and-queue-playlist 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/v0e8p9JCgRc/maxresdefault.jpg L9. Sum of Subarray Minimum | Stack and Queue Playlist Check out TUF+: https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 L9. Sum of Subarray Minimum | Stack and Queue Playlist https://takeuforward.org/strivers-a2z-dsa-course/sum-of-subarray-minimums Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/v0e8p9JCgRc https://www.techtube.co.in/tutorials/largest-rectangle-in-histogram-leetcode-84-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/zx5Sw9130L0/maxresdefault.jpg LARGEST RECTANGLE IN HISTOGRAM - Leetcode 84 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/largest-rectangle-in-histogram 0:00 - Intuition 5:44 - Conceptual Algorithm 13:58 - Coding optimal solution #Coding #Programming #CodingInterview Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/zx5Sw9130L0 https://www.techtube.co.in/tutorials/last-stone-weight-ii-leetcode-1049-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/gdXkkmzvR3c/maxresdefault.jpg Last Stone Weight II - Leetcode 1049 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/last-stone-weight-ii 0:00 - Read the problem 0:50 - Drawing Explanation 13:20 - Coding Explanation leetcode 1049 #neetcode #leetcode #python https://www.youtube.com/embed/gdXkkmzvR3c https://www.techtube.co.in/tutorials/last-stone-weight-priority-queue-leetcode-1046-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/B-QCq79-Vfw/maxresdefault.jpg Last Stone Weight - Priority Queue - Leetcode 1046 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/last-stone-weight 0:00 - Read the problem 1:52 - Drawing Explanation 7:19 - Coding Explanation leetcode 1046 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #priority #queue #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/B-QCq79-Vfw https://www.techtube.co.in/tutorials/leaders-in-an-array-brute-optimal-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/cHrH9CQ8pmY/maxresdefault.jpg Leaders in an Array | Brute - Optimal | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Leaders in an Array problem - https://takeuforward.org/plus/dsa/problems/leaders-in-an-array Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/cHrH9CQ8pmY https://www.techtube.co.in/tutorials/leetcode-128-longest-consecutive-sequence 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/P6RZZMu_maU/maxresdefault.jpg Leetcode 128 - LONGEST CONSECUTIVE SEQUENCE 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Problem Link: https://neetcode.io/problems/longest-consecutive-sequence 0:00 - Sorting Solution 1:02 - Conceptual optimal solution 7:23 - Coding optimal solution #Coding #Programming #CodingInterview https://www.youtube.com/embed/P6RZZMu_maU https://www.techtube.co.in/tutorials/lemonade-change-leetcode-860-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/mSVAw0AUZgA/maxresdefault.jpg Lemonade Change - Leetcode 860 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/lemonade-change 0:00 - Read the problem 0:30 - Drawing Explanation 7:27 - Coding Explanation leetcode 860 #neetcode #leetcode #python https://www.youtube.com/embed/mSVAw0AUZgA https://www.techtube.co.in/tutorials/letter-case-permutation-recursion 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/4eOPYDOiwFo/maxresdefault.jpg Letter Case Permutation | Recursion Patreon Link: https://www.patreon.com/adityaVerma Video Pdf Notes And Code: https://www.patreon.com/posts/38832898 Problem Description: https://leetcode.com/problems/letter-case-permutation/ Given a string S, we can transform every letter individually to be lowercase or uppercase to create another string. Return a list of all possible strings we could create. Examples: Input: S = "a1b2" Output: ["a1b2", "a1B2", "A1b2", "A1B2"] Input: S = "3z4" Output: ["3z4", "3Z4"] Input: S = "12345" Output: ["12345"] . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/4eOPYDOiwFo https://www.techtube.co.in/tutorials/letter-combinations-of-a-phone-number-backtracking-leetcode-17 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/0snEunUacZY/maxresdefault.jpg Letter Combinations of a Phone Number - Backtracking - Leetcode 17 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/combinations-of-a-phone-number 0:00 - Read the problem 2:30 - Drawing Explanation 6:10 - Coding Solution leetcode 17 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #phone #combination #python https://www.youtube.com/embed/0snEunUacZY https://www.techtube.co.in/tutorials/lfu-cache-leetcode-460-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/bLEIHn-DgoA/maxresdefault.jpg LFU Cache - Leetcode 460 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Solving today's daily leetcode problem - LFU Cache - on January 28th. This problem makes me really love life =) 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/lfu-cache 0:00 - Read the problem 2:00 - Drawing Explanation 5:05 - Coding Explanation leetcode 460 #neetcode #leetcode #python https://www.youtube.com/embed/bLEIHn-DgoA https://www.techtube.co.in/tutorials/linear-search-algorithm-theory-code-questions 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/_HRA37X8N_Q/maxresdefault.jpg Linear Search Algorithm - Theory + Code + Questions In this video, we cover Linear Search in-depth. We cover the working, complexity analysis, code, and some questions to strengthen the concepts. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00 Introduction 0:35 What is searching? 1:32 Linear Search 15:50 Code for Linear Search 25:30 🎯 Questions 25:52 Q1 : Search in String 30:30 Q2 : Search in Range 33:35 Q3 : Minimum Number 37:26 Q4 : Search in 2D Arrays 49:15 Q5 : Even Digits 1:00:27 Optimized Solution for Q5 1:04:05 Q6 : Max Wealth 1:14:47 Outro #searching #placement #dsa #interviews https://www.youtube.com/embed/_HRA37X8N_Q https://www.techtube.co.in/tutorials/linked-list-cycle-floyds-tortoise-and-hare-leetcode-141-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/gBTe7lFR3vc/maxresdefault.jpg Linked List Cycle - Floyd's Tortoise and Hare - Leetcode 141 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/linked-list-cycle-detection 0:00 - Read the problem 3:34 - Drawing Explanation 9:22 - Coding Explanation leetcode 141 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #linked #list #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/gBTe7lFR3vc https://www.techtube.co.in/tutorials/linked-list-interview-questions-google-facebook-amazon-microsoft 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/70tx7KcMROc/maxresdefault.jpg Linked List Interview Questions - Google, Facebook, Amazon, Microsoft This video is a complete guide to solving any #LinkedList interview question! Here we cover the type of questions that are asked on this topic, how to think and approach a problem, identify potential ways to solve the problem efficiently. We cover some of the most important topics in Linked List interview questions such as: - recursion with Linked List - sorting a Linked List - cycle detection - in-place reversal - and more! This video is also full of interview questions from Google, Facebook, Amazon, Microsoft, Apple, Twitter and LinkedIn ranging from LeetCode Easy to Hard. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00:00 Introduction 0:04:21 Q-01: Recursive Insertion in LinkedList 0:24:45 Q-02: Remove Duplicates from Sorted LinkedList 0:35:30 Q-03: Merge Two Sorted LinkedLists 0:45:23 Q-04: LinkedList Cycle 0:59:30 Q-05: Length of LinkedList Cycle 1:03:53 Q-06: LinkedList Cycle II 1:15:57 Q-07: Happy Number 1:27:27 Q-08: Middle of the LinkedList 1:31:09 Q-09: Sort LinkedList 1:47:26 Q-10: Reverse LinkedList (Recursive) 1:56:12 Q-11: Reverse LinkedList (Iterative) 2:05:36 Q-12: Reverse LinkedList II 2:18:14 Q-13: Palindrome LinkedList 2:27:14 Q-14: Reorder LinkedList 2:38:52 Q-15: Reverse k-Nodes in LinkedList 2:51:00 Q-16: Reverse Alternate k-Nodes in LinkedList 2:53:36 Q-17: Rotate LinkedList 3:07:44 Outro #placement #dsa #interviews https://www.youtube.com/embed/70tx7KcMROc https://www.techtube.co.in/tutorials/linked-list-tutorial-singly-doubly-circular-theory-code-implementation 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/58YbpRDc4yw/maxresdefault.jpg Linked List Tutorial - Singly + Doubly + Circular (Theory + Code + Implementation) Learn complete Singly + Doubly + Circular #LinkedList in a single video! One of the most important data structures for coding interviews. Here we also build the Linked List from scratch and see how it works internally! Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00:00 Introduction 0:02:35 Limitations of Array/ArrayList 0:04:08 Working of LinkedList ---- Singly LinkedList ---- 0:06:18 Singly LinkedList 0:16:25 Insertion in Singly LinkedList 0:22:41 Display Singly LinkedList 0:29:28 Insertion in Singly LinkedList [Continuation] 0:40:04 Deletion in Singly LinkedList 0:54:48 Some Common Doubts ---- Doubly LinkedList ---- 1:00:46 Doubly LinkedList 1:08:52 Insertion in Doubly LinkedList 1:10:30 Display Doubly LinkedList 1:13:12 Reversal of LinkedList 1:16:07 Insertion in Doubly LinkedList [Continuation] ---- Circular LinkedList ---- 1:37:35 Circular LinkedList 1:42:46 Insertion in Circular LinkedList 1:43:49 Display Circular LinkedList 1:47:28 Deletion in Circular LinkedList 1:54:21 Outro #placement #dsa #interviews https://www.youtube.com/embed/58YbpRDc4yw https://www.techtube.co.in/tutorials/linkedin-interview-question-reorder-list-leetcode-143-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/S5bfdUTrKLM/maxresdefault.jpg Linkedin Interview Question - Reorder List - Leetcode 143 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/reorder-linked-list 0:00 - Read the problem 3:00 - Drawing Explanation 9:23 - Coding Explanation leetcode 143 This question was identified as a linkedin coding interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #linked #list #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/S5bfdUTrKLM https://www.techtube.co.in/tutorials/longest-common-prefix-leetcode-14-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/0sWShKIJoo4/maxresdefault.jpg Longest Common Prefix - Leetcode 14 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/longest-common-prefix 0:00 - Read the problem 1:40 - Drawing Explanation 3:02 - Coding Explanation leetcode 14 #prefix #interview #python https://www.youtube.com/embed/0sWShKIJoo4 https://www.techtube.co.in/tutorials/longest-common-subsequence-dynamic-programming-leetcode-1143 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Ua0GhsJSlWM/maxresdefault.jpg Longest Common Subsequence - Dynamic Programming - Leetcode 1143 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/longest-common-subsequence 0:00 - Read the problem 4:23 - Read the problem 14:05 - Read the problem leetcode 1143 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python https://www.youtube.com/embed/Ua0GhsJSlWM https://www.techtube.co.in/tutorials/longest-consecutive-sequence-google-interview-question-brute-better-optimal 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/oO5uLE7EUlM/maxresdefault.jpg Longest Consecutive Sequence | Google Interview Question | Brute Better Optimal Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Longest Consecutive Sequence in an Array - https://takeuforward.org/plus/dsa/problems/longest-consecutive-sequence-in-an-array Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/oO5uLE7EUlM https://www.techtube.co.in/tutorials/longest-happy-string-leetcode-1405-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/8u-H6O_XQKE/maxresdefault.jpg Longest Happy String - Leetcode 1405 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/longest-happy-string 0:00 - Read the problem 1:40 - Drawing Explanation 7:04 - Coding Explanation leetcode 1405 #microsoft #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/8u-H6O_XQKE https://www.techtube.co.in/tutorials/longest-increasing-path-in-a-matrix-leetcode-329 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/wCc_nd-GiEc/maxresdefault.jpg Longest Increasing Path in a Matrix - Leetcode 329 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Code on Github: https://github.com/neetcode-gh/leetcode/blob/main/329-Longest-Increasing-Path-in-a-Matrix.py Problem Link: https://neetcode.io/problems/longest-increasing-path-in-matrix 0:00 - Read the problem 3:20 - Drawing Explanation 11:32 - Coding Explanation leetcode 329 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #dfs #memoization #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/wCc_nd-GiEc https://www.techtube.co.in/tutorials/longest-increasing-subsequence-dynamic-programming-leetcode-300 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/cjWnW0hdF1Y/maxresdefault.jpg Longest Increasing Subsequence - Dynamic Programming - Leetcode 300 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/longest-increasing-subsequence 0:00 - Read the problem 1:45 - Brute Force Solution 2:58 - DFS Solution 10:55 - Dynamic Programming Solution 15:35 - Coding Solution leetcode 300 This question was identified as a Google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency/blob/master/Apple%20-%20LeetCode.pdf #LIS #subsequence #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/cjWnW0hdF1Y https://www.techtube.co.in/tutorials/longest-palindromic-substring-python-leetcode-5 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/XYQecbcd6_c/maxresdefault.jpg Longest Palindromic Substring - Python - Leetcode 5 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem link: https://neetcode.io/problems/longest-palindromic-substring 0:00 - Conceptual Solution 4:30 - Coding solution #Coding #CodingInterview #GoogleInterview Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/XYQecbcd6_c https://www.techtube.co.in/tutorials/longest-repeating-character-replacement-leetcode-424-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/gqXU1UyA8pk/maxresdefault.jpg Longest Repeating Character Replacement - Leetcode 424 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/longest-repeating-substring-with-replacement 0:00 - Read the problem 2:28 - Drawing Explanation 16:48 - Coding Explanation leetcode 424 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #character #replacement #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/gqXU1UyA8pk https://www.techtube.co.in/tutorials/longest-subarray-with-sum-k-brute-better-optimal-generate-subarrays 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/frf7qxiN2qU/maxresdefault.jpg Longest Subarray with sum K | Brute - Better - Optimal | Generate Subarrays Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 1.Longest subarray with given sum K(positives) - https://takeuforward.org/plus/dsa/problems/longest-subarray-with-sum-k 2.Longest subarray with sum K (Positives + Negatives) - https://takeuforward.org/plus/dsa/problems/longest-subarray-with-sum-k Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/frf7qxiN2qU https://www.techtube.co.in/tutorials/longest-substring-without-repeating-characters-leetcode-3-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/wiGpQwVHdE0/maxresdefault.jpg Longest Substring Without Repeating Characters - Leetcode 3 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/longest-substring-without-duplicates 0:00 - Conceptual 4:40 - Coding Solution leetcode 3 #Coding #Programming #CodingInterview #leetcode #neetcode Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/wiGpQwVHdE0 https://www.techtube.co.in/tutorials/longest-turbulent-array-leetcode-978-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/V_iHUhR8Dek/maxresdefault.jpg Longest Turbulent Array - Leetcode 978 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/longest-turbulent-subarray 0:00 - Read the problem 0:50 - Drawing Explanation 8:40 - Coding Explanation leetcode 978 #neetcode #leetcode #python https://www.youtube.com/embed/V_iHUhR8Dek https://www.techtube.co.in/tutorials/lowest-common-ancestor-of-a-binary-search-tree-leetcode-235-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/gs2LMfuOR9k/maxresdefault.jpg Lowest Common Ancestor of a Binary Search Tree - Leetcode 235 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/lowest-common-ancestor-in-binary-search-tree 0:00 - Read the problem 1:02 - Drawing Explanation 5:12 - Coding Explanation leetcode 235 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #binary #tree #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/gs2LMfuOR9k https://www.techtube.co.in/tutorials/lru-cache-twitch-interview-question-leetcode-146 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/7ABFKPK2hD4/maxresdefault.jpg LRU Cache - Twitch Interview Question - Leetcode 146 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode CODE ON GITHUB: https://github.com/neetcode-gh/leetcode/blob/main/146-LRU-Cache.py Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/lru-cache 0:00 - Read the problem 2:00 - Drawing solution 7:30 - Coding solution leetcode 146 #twitch #interview #python Song: Bamboo by Oak Studios Creative Commons - Attribution ND 4.0 https://youtu.be/3g0kRuTpX38 https://www.youtube.com/embed/7ABFKPK2hD4 https://www.techtube.co.in/tutorials/majority-element-i-brute-better-optimal-moores-voting-algorithm-intuition-brute-to-optimal 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/nP_ns3uSh80/maxresdefault.jpg Majority Element I | Brute-Better-Optimal | Moore's Voting Algorithm | Intuition 🔥|Brute to Optimal Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Majority Element i - https://takeuforward.org/plus/dsa/problems/majority-element-i Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/nP_ns3uSh80 https://www.techtube.co.in/tutorials/majority-element-ii-brute-better-optimal 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/vwZj1K0e9U8/maxresdefault.jpg Majority Element II | Brute-Better-Optimal Check out TUF+: https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Majority Element II | Brute-Better-Optimal https://takeuforward.org/plus/dsa/problems/majority-element-ii Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/vwZj1K0e9U8 https://www.techtube.co.in/tutorials/majority-element-ii-leetcode-229-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Eua-UrQ_ANo/maxresdefault.jpg Majority Element II - Leetcode 229 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/majority-element-ii 0:00 - Read the problem 0:30 - Drawing Explanation 10:05 - Coding Explanation leetcode 229 #neetcode #leetcode #python https://www.youtube.com/embed/Eua-UrQ_ANo https://www.techtube.co.in/tutorials/majority-element-leetcode-169-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/7pnhv842keE/maxresdefault.jpg Majority Element - Leetcode 169 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/majority-element 0:00 - Read the problem 1:40 - Drawing Explanation 2:24 - Coding Solution #1 5:23 - Explain Follow-up 12:35 - Coding Follow-up leetcode 169 #coding #interview #python https://www.youtube.com/embed/7pnhv842keE https://www.techtube.co.in/tutorials/master-golang-in-one-video-complete-go-course-real-world-api-project-in-hindi-coders-gyan 2026-08-19 weekly 0.7 https://i.ytimg.com/vi/yZgwW6Yuc_E/maxresdefault.jpg Master Golang in One Video | Complete Go Course + Real-world API Project in Hindi | Coder's Gyan Learn Golang from scratch in this one comprehensive video! In this full Golang tutorial, we'll cover everything from basics like variables, functions, and pointers, to advanced topics like goroutines, channels, generics, and mutexes. To solidify your learning, we'll also build a practical RESTful API project step-by-step. Whether you're a beginner or brushing up your skills, this tutorial is your one-stop solution to mastering Go programming language. 🌟 What You'll Learn: Go basics: Variables, Arrays, Slices, Maps, and Functions Advanced Go: Interfaces, Structs, Goroutines, Channels, and Generics How to build a real-world RESTful API from scratch 🛠 Project Included: Complete hands-on API project demonstrating practical use of Golang. Timestamps: 00:00:00 Intro 00:03:40 Why Golang 00:09:22 Golang installation 00:12:00 Hello world program 00:17:34 Simple values 00:21:19 Variables 00:29:08 Constants 00:34:00 For loops 00:41:58 If Else 00:51:32 Switch statement 01:02:14 Arrays 01:14:06 Slices 01:39:45 Maps 01:54:36 Range 02:06:16 Functions 02:18:07 Variadic Functions 02:24:12 Closures 02:29:23 Pointers 02:39:40 Structs 03:15:35 Interfaces 03:43:17 Enums 03:54:52 Generics 04:09:40 Goroutines 04:18:58 Wait groups 04:24:51 Channels 05:08:30 Mutex 05:22:34 File handling 06:04:04 Packages 06:32:08 REST API Project 📚 Source Code: https://github.com/codersgyan/golang-playlist https://github.com/codersgyan/go-students-api https://www.youtube.com/embed/yZgwW6Yuc_E https://www.techtube.co.in/tutorials/master-java-fast-ultimate-one-video-java-crash-course-for-2025 2026-09-03 weekly 0.7 https://i.ytimg.com/vi/7-lK9EpBS_Y/maxresdefault.jpg Master Java FAST: Ultimate One-Video Java Crash Course for 2025! Master Java Programming from ABSOLUTE ZERO! In this complete crash course, you'll learn everything you need to become a Java developer in 2025. Perfect for beginners and students preparing for interviews! ⭐ What You'll Learn: ✓ Java Basics & Setup (0:00) ✓ Variables & Data Types (13:16) ✓ Arithmetic & Bitwise Operations (38:48) ✓ If-else, Loops & Control Flow (47:47) ✓ Arrays (01:04:43) ✓ Object-Oriented Programming Made Easy! (01:09:17) ✓ Multi-threading Like a Pro (01:42:02) ✓ Collections Framework Simplified (02:07:48) https://www.youtube.com/embed/7-lK9EpBS_Y https://www.techtube.co.in/tutorials/matchsticks-to-square-leetcode-473-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/hUe0cUKV-YY/maxresdefault.jpg Matchsticks to Square - Leetcode 473 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/matchsticks-to-square 0:00 - Read the problem 2:03 - Drawing Explanation 9:53 - Coding Explanation leetcode 473 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #amazon #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/hUe0cUKV-YY https://www.techtube.co.in/tutorials/maths-for-data-structures-algorithms 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/lmSpZ0bjCyQ/maxresdefault.jpg Maths for Data Structures & Algorithms In this video we cover some of the important topics in maths for data structures & algorithms, including: - Prime numbers - Sieve of Eratosthenes - Newton's square root method - Factors - Modulo properties - HCF / LCM - Euclidean algorithm Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 00:00:00 Introduction 00:01:15 Prime Numbers 00:11:55 Question 00:14:16 Sieve of Eratosthenes 00:27:21 Complexity Analysis of SoE 00:31:50 Square Root 00:43:58 Newton Raphson Method 00:51:25 Complexity Analysis of NRM 00:55:07 Factors 00:58:20 Optimised Code for Factors 01:06:17 Modulo Properties 01:13:31 Die-Hard Example 01:25:15 HCF/GCD 01:31:57 Euclidean Algorithm 01:41:11 LCM 01:53:45 Outro #math #placement #dsa #interviews https://www.youtube.com/embed/lmSpZ0bjCyQ https://www.techtube.co.in/tutorials/max-area-of-island-leetcode-695-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/iJGr1OtmH0c/maxresdefault.jpg Max Area of Island - Leetcode 695 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/max-area-of-island 0:00 - Read the problem 1:45 - Drawing Explanation 6:18 - Coding Explanation leetcode 695 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #facebook #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/iJGr1OtmH0c https://www.techtube.co.in/tutorials/maximum-depth-of-binary-tree-3-solutions-leetcode-104-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/hTM3phVI6YQ/maxresdefault.jpg Maximum Depth of Binary Tree - 3 Solutions - Leetcode 104 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/depth-of-binary-tree 0:00 - Read the problem 1:28 - Recursive DFS 5:30 - BFS Solution 10:43 - Iterative DFS leetcode 104 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #binary #tree #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/hTM3phVI6YQ https://www.techtube.co.in/tutorials/maximum-frequency-stack-leetcode-895-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Z6idIicFDOE/maxresdefault.jpg Maximum Frequency Stack - Leetcode 895 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/maximum-frequency-stack 0:00 - Read the problem 1:40 - Drawing Explanation 9:06 - Coding Explanation leetcode 895 #stack #interview #python https://www.youtube.com/embed/Z6idIicFDOE https://www.techtube.co.in/tutorials/maximum-product-subarray-best-intuitive-approach-discussed 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/hnswaLJvr6g/maxresdefault.jpg Maximum Product Subarray - Best Intuitive Approach Discussed Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Maximum Product Subarray - Best Intuitive Approach Discussed https://takeuforward.org/plus/dsa/problems/maximum-product-subarray-in-an-array Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/hnswaLJvr6g https://www.techtube.co.in/tutorials/maximum-product-subarray-dynamic-programming-leetcode-152 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/lXVy6YWFcRM/maxresdefault.jpg Maximum Product Subarray - Dynamic Programming - Leetcode 152 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/maximum-product-subarray 0:00 - Brute Force 2:00 - Drawing optimal Solution 10:00 - Coding solution leetcode 152 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency/blob/master/Apple%20-%20LeetCode.pdf #product #subarray #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/lXVy6YWFcRM https://www.techtube.co.in/tutorials/maximum-subarray-amazon-coding-interview-question-leetcode-53-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/5WZl3MMT0Eg/maxresdefault.jpg Maximum Subarray - Amazon Coding Interview Question - Leetcode 53 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Solve it yourself: https://neetcode.io/problems/maximum-subarray 0:00 - Cubic solution 2:02 - Quadratic solution 3:10 - Linear solution 6:37 - Coding #Coding #Programming #CodingInterview Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/5WZl3MMT0Eg https://www.techtube.co.in/tutorials/maximum-sum-circular-subarray-leetcode-918-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/fxT9KjakYPM/maxresdefault.jpg Maximum Sum Circular Subarray - Leetcode 918 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/maximum-sum-circular-subarray 0:00 - Read the problem 1:10 - Kadane's Explanation 5:00 - Circular Explanation 14:00 - Coding Explanation leetcode 918 #neetcode #leetcode #python https://www.youtube.com/embed/fxT9KjakYPM https://www.techtube.co.in/tutorials/median-of-two-sorted-arrays-binary-search-leetcode-4 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/q6IEA26hvXc/maxresdefault.jpg Median of Two Sorted Arrays - Binary Search - Leetcode 4 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk Code on Github: https://github.com/neetcode-gh/leetcode/blob/main/4-median-of-two-sorted-arrays.py 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/median-of-two-sorted-arrays 0:00 - Read the problem 1:45 - Drawing explanation 14:05 - Coding explanation leetcode 4 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #median #facebook #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/q6IEA26hvXc https://www.techtube.co.in/tutorials/meeting-rooms-ii-leetcode-253-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/FdzJmTCVyJU/maxresdefault.jpg Meeting Rooms II - Leetcode 253 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/meeting-schedule-ii 0:00 - Read the problem 2:05 - Drawing Explanation 8:43 - Coding Explanation leetcode 253 Meeting rooms 2 #meeting #rooms #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/FdzJmTCVyJU https://www.techtube.co.in/tutorials/meeting-rooms-iii-leetcode-2402-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/2VLwjvODQbA/maxresdefault.jpg Meeting Rooms III - Leetcode 2402 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/meeting-rooms-iii 0:00 - Read the problem 0:30 - Drawing Explanation 8:48 - Coding Explanation leetcode 2402 #neetcode #leetcode #python https://www.youtube.com/embed/2VLwjvODQbA https://www.techtube.co.in/tutorials/meeting-rooms-leetcode-252-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/PaJxqZVPhbg/maxresdefault.jpg Meeting Rooms - Leetcode 252 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/meeting-schedule 0:00 - Read the problem 2:35 - Drawing Explanation 5:40 - Coding Explanation leetcode 252 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/PaJxqZVPhbg https://www.techtube.co.in/tutorials/merge-intervals-sorting-leetcode-56 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/44H3cEC2fFM/maxresdefault.jpg Merge Intervals - Sorting - Leetcode 56 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/merge-intervals 0:00 - Read the problem 1:25 - Drawing Solution 5:40 - Coding Solution leetcode 56 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #merge #interval #python https://www.youtube.com/embed/44H3cEC2fFM https://www.techtube.co.in/tutorials/merge-k-sorted-lists-leetcode-23-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/q5a5OiGbT6Q/maxresdefault.jpg Merge K Sorted Lists - Leetcode 23 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Solve it yourself: https://neetcode.io/problems/reverse-nodes-in-k-group 0:00 - Conceptual Solution 4:40 - Coding solution #leetcode #mergesort #linkedlist Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/q5a5OiGbT6Q https://www.techtube.co.in/tutorials/merge-overlapping-intervals-brute-optimal-with-precise-tc-analysis 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/IexN60k62jo/maxresdefault.jpg Merge Overlapping Intervals | Brute, Optimal with Precise TC analysis Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/IexN60k62jo https://www.techtube.co.in/tutorials/merge-sort-algorithm-hindi 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/zXhWPrMLXGo/hqdefault.jpg Merge Sort Algorithm - Hindi Merge Sort Algorithm Explained in Hindi https://www.youtube.com/embed/zXhWPrMLXGo https://www.techtube.co.in/tutorials/merge-sort-algorithm-pseudocode-dry-run-code-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ogjf7ORKfd8/maxresdefault.jpg Merge Sort | Algorithm | Pseudocode | Dry Run | Code | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/ogjf7ORKfd8 https://www.techtube.co.in/tutorials/merge-sort-using-recursion-theory-complexity-code 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/iKGAgWdgoRk/maxresdefault.jpg Merge Sort Using Recursion (Theory + Complexity + Code) In this video, we cover the merge sort algorithm. Including the theory, code implementation using recursion, space and time complexity analysis, along with the in-place sorting approach. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 00:00 Introduction 00:31 Merge Sort 03:16 Steps for Merge Sort 06:58 E1 : Recursive Merge Sort 22:18 Explanation of E1 25:31 Time Complexity 29:01 Space Complexity 29:37 Solving Complexity using Akra-Bazzi Formula 33:06 In-place Merge Sort 44:14 Code for in-place Approach 49:34 Outro #sorting #placement #dsa #interviews https://www.youtube.com/embed/iKGAgWdgoRk https://www.techtube.co.in/tutorials/merge-sorted-array-leetcode-88-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/P1Ic85RarKY/maxresdefault.jpg Merge Sorted Array - Leetcode 88 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/merge-sorted-array 0:00 - Drawing explanation 5:30 - Coding solution Leetcode 88 #Coding #leetcode #neetcode https://www.youtube.com/embed/P1Ic85RarKY https://www.techtube.co.in/tutorials/merge-sorted-arrays-without-extra-space-2-optimal-solution 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/n7uwj04E0I4/maxresdefault.jpg Merge Sorted Arrays Without Extra Space | 2 Optimal Solution Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Merge Sorted Arrays Without Extra Space | 2 Optimal Solution https://takeuforward.org/plus/dsa/problems/merge-two-sorted-arrays-without-extra-space Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/n7uwj04E0I4 https://www.techtube.co.in/tutorials/merge-strings-alternately-leetcode-1768-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/LECWOvTo-Sc/maxresdefault.jpg Merge Strings Alternately - Leetcode 1768 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/merge-strings-alternately 0:00 - Read the problem 0:30 - Drawing Explanation 2:00 - Coding Explanation leetcode 1768 #neetcode #leetcode #python https://www.youtube.com/embed/LECWOvTo-Sc https://www.techtube.co.in/tutorials/merge-triplets-to-form-target-triplet-greedy-leetcode-1899-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/kShkQLQZ9K4/maxresdefault.jpg Merge Triplets to Form Target Triplet - Greedy - Leetcode 1899 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/merge-triplets-to-form-target 0:00 - Drawing Explanation 4:34 - Coding Explanation leetcode 1899 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #triplet #greedy #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/kShkQLQZ9K4 https://www.techtube.co.in/tutorials/merge-two-sorted-lists-leetcode-21-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/XIdigk956u0/maxresdefault.jpg Merge Two Sorted Lists - Leetcode 21 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/merge-two-sorted-linked-lists 0:00 - Visual Explanation 3:15 - Coding Optimal Solution #leetcode #microsoftcodinginterview #linkedlist Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/XIdigk956u0 https://www.techtube.co.in/tutorials/microsofts-most-asked-question-2021-count-good-nodes-in-a-binary-tree-leetcode-1448-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/7cp5imvDzl4/maxresdefault.jpg Microsoft's Most Asked Question 2021 - Count Good Nodes in a Binary Tree - Leetcode 1448 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/count-good-nodes-in-binary-tree 0:00 - Read the problem 1:40 - Drawing Explanation 5:21 - Coding Explanation leetcode 1448 This question was identified as a microsoft interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #binary #tree #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/7cp5imvDzl4 https://www.techtube.co.in/tutorials/min-cost-climbing-stairs-dynamic-programming-leetcode-746-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/ktmzAZWkEZ0/maxresdefault.jpg Min Cost Climbing Stairs - Dynamic Programming - Leetcode 746 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/min-cost-climbing-stairs 0:00 - Read the problem 4:00 - Drawing Brute Force 6:32 - Drawing Memoization 10:40 - Drawing Dynamic Programming 16:02 - Coding DP Solution leetcode 746 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/ktmzAZWkEZ0 https://www.techtube.co.in/tutorials/minimum-array-end-leetcode-3133-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/4pP-0UpEok4/maxresdefault.jpg Minimum Array End - Leetcode 3133 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/minimum-array-end 0:00 - Read the problem 0:30 - Drawing Explanation 9:08 - Coding Explanation 10:50 - Drawing Explanation 19:27 - Coding Explanation leetcode 3133 #neetcode #leetcode #python https://www.youtube.com/embed/4pP-0UpEok4 https://www.techtube.co.in/tutorials/minimum-height-trees-leetcode-310-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/wQGQnyv_9hI/maxresdefault.jpg Minimum Height Trees - Leetcode 310 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/minimum-height-trees 0:00 - Read the problem 1:41 - Drawing Explanation 1 11:23 - Drawing Explanation 2 15:37 - Coding Explanation leetcode 310 #neetcode #leetcode #python https://www.youtube.com/embed/wQGQnyv_9hI https://www.techtube.co.in/tutorials/minimum-interval-to-include-each-query-leetcode-1851-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/5hQ5WWW5awQ/maxresdefault.jpg Minimum Interval to Include Each Query - Leetcode 1851 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/minimum-interval-including-query 0:00 - Read the problem 4:52 - Drawing Explanation 19:45 - Coding Explanation leetcode 1851 #query #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/5hQ5WWW5awQ https://www.techtube.co.in/tutorials/minimum-path-sum-dynamic-programming-leetcode-64-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/pGMsrvt0fpk/maxresdefault.jpg Minimum Path Sum - Dynamic Programming - Leetcode 64 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/minimum-path-sum 0:00 - Read the problem 1:40 - Drawing Explanation 6:46 - Coding Explanation leetcode 64 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #dynamic #programming #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/pGMsrvt0fpk https://www.techtube.co.in/tutorials/minimum-size-subarray-sum-leetcode-209-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/aYqYMIqZx5s/maxresdefault.jpg Minimum Size Subarray Sum - Leetcode 209 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/minimum-size-subarray-sum 0:00 - Read the problem 1:26 - Drawing Explanation 8:33 - Coding Explanation leetcode 209 #amazon #interview #python https://www.youtube.com/embed/aYqYMIqZx5s https://www.techtube.co.in/tutorials/minimum-window-substring-airbnb-interview-question-leetcode-76 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/jSto0O4AJbM/maxresdefault.jpg Minimum Window Substring - Airbnb Interview Question - Leetcode 76 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Code on Github: https://github.com/neetcode-gh/leetcode/blob/main/76-Minimum-Window-Substring.py 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/minimum-window-with-characters 0:00 - Read the problem 1:15 - Drawing Brute Force 5:55 - Drawing Linear Solution 17:45 - Coding Solution leetcode 76 This question was identified as an airbnb interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #airbnb #python #slidingwindow Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/jSto0O4AJbM https://www.techtube.co.in/tutorials/missing-number-blind-75-leetcode-268-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/WnPLSRLSANE/maxresdefault.jpg Missing Number - Blind 75 - Leetcode 268 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/missing-number 0:00 - Read the problem 2:42 - XOR Explanation 8:02 - Sum Explanation 9:20 - Coding Explanation leetcode 268 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/WnPLSRLSANE https://www.techtube.co.in/tutorials/multiply-strings-leetcode-43-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/1vZswirL8Y8/maxresdefault.jpg Multiply Strings - Leetcode 43 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/multiply-strings 0:00 - Read the problem 1:31 - Drawing Explanation 10:48 - Coding Explanation leetcode 43 This question was identified as a microsoft interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/1vZswirL8Y8 https://www.techtube.co.in/tutorials/must-watch-the-biggest-coding-courses-revolution-has-started-join-now 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/0QCacvYV9g8/maxresdefault.jpg [MUST WATCH] 📢 : The BIGGEST Coding Courses Revolution has started! JOIN NOW 🔥 JOIN TELEGRAM CHANNEL FOR LATEST UPDATES: https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Time & Space Complexity is the foundation of DSA, yet it is one of the most misunderstood topics across YouTube and paid courses. In this video, we break down Time & Space Complexity the Babua way — from absolute basics to advanced concepts — exactly as outlined in the attached notes. This is not rote theory, but intuition-first learning that actually helps you solve problems faster and better. 🔥 What you’ll learn in this video: 🧠 1️⃣ Basics of Time & Space Complexity What is Time Complexity? Why it matters more than just writing correct code How complexity impacts real-world systems When and where to analyze complexity (interviews & production) 🛠️ 2️⃣ Tools to Analyze Time & Space Counting operations Loop analysis Nested loops Logarithmic intuition Best, worst & average case analysis 🔁 3️⃣ Recursion & Recurrence How recursion actually consumes time & space Writing recurrence relations Solving recurrences intuitively DP connection Top-down vs Bottom-up approach explained clearly 🧱 4️⃣ Data Structures & Complexity Time & space complexity of core data structures Arrays, Linked Lists, Stacks, Queues, Trees, Graphs, Heaps, Hash Tables Why choosing the right DS matters more than syntax ⚡ 5️⃣ Amortized Analysis Why some operations look costly but aren’t Dynamic array resizing Real-world intuition behind amortized concepts 🎲 6️⃣ Probabilistic Concepts Expected time complexity Randomized algorithms Why hashing works (even when it looks risky) 🧩 7️⃣ Complexity Theory (P vs NP) What are P problems What are NP problems Why some problems are “hard” forever Interview-level understanding (no math headache) ✍️ 8️⃣ Practice Problems & Cheat Sheet Carefully selected problems How to think, not memorize Cheat sheet for revision before interviews 🚀 Who is this video for? Students preparing for FAANG / product companies Beginners confused about Time & Space Complexity Anyone tired of half-baked explanations Those who want clarity + confidence 📢 Important Updates (from the notes): Patterns-wise DSA videos are FREE Topic-wise DSA is FREE Dedicated Telegram group Instructor support via YouTube Membership Structured learning instead of random videos 📌 Join using the first link in the description If today’s DSA courses feel confusing, rushed, or incomplete — this masterclass is designed to fix that problem from the root. 💙 Padhenge nahi, samjhenge. Aur phir pel denge. Hashtags: #TimeAndSpaceComplexity #DSA #DataStructures #Algorithms #DSAForInterviews #CodingInterviews #FAANGPreparation #BigONotation #AlgorithmAnalysis #Recursion #DynamicProgramming #AmortizedAnalysis #PvsNP #ComputerScience #DSACourse #DSAPatterns #LearnDSA #CodingPreparation #PlacementPreparation #BabuaDSA Your Queries: time and space complexity dsa time complexity space complexity big o notation algorithm analysis data structures and algorithms recursion recurrence top down dp bottom up dp amortized analysis probabilistic algorithms p vs np complexity theory dsa for interviews faang dsa preparation coding interview preparation learn dsa babua dsa dsa patterns CHAPTERS 00:00 - Introduction & Recap 01:20 - Reality of DSA Market 04:21 - Complete DSA In 179 Rupees - Announcement #1 10:50 - WhatsApp to Telegram Migration - Announcement #2 12:07 - Time & Space Complexity Course Outline 15:00 - Babua Topic-wise DS In Java, CPP, Python, Javascript Course Outline 17:10 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/0QCacvYV9g8 https://www.techtube.co.in/tutorials/my-tips-tricks-to-convert-brute-force-into-dynamic-sliding-window-pattern-dsa-patterns-2025 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/wPphOQuJNaU/maxresdefault.jpg 🔥 My Tips & Tricks to convert Brute Force Into Dynamic Sliding Window Pattern | DSA Patterns 2025 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/17_Day/NOTES/Revision_Dynamic_Sliding_Window.svg 📘 Dynamic Sliding Window Revision — Frequency of the Most Frequent Element | Babua DSA Patterns Course Welcome back to the Babua DSA Patterns Course (Day X/90)! In today’s revision session, we dive deep into one of the most important Dynamic Sliding Window problems on LeetCode — 1838. Frequency of the Most Frequent Element. This problem beautifully demonstrates how window expansion + shrinking combined with prefix logic and smart window math helps us maintain the most frequent element count without brute force. 🔥 What you’ll learn in this video: Dynamic Sliding Window intuition Why static window fails for this problem How to track cost using prefix differences Step-by-step explanation with examples Full code walkthrough (Optimal O(n log n)) Interview insights + edge case handling How to revise this problem effectively for interviews Whether you're preparing for FAANG, top product companies, or cracking your next tech interview, this revision breakdown will make the Dynamic Sliding Window pattern crystal clear. ✨ This lecture is part of the Babua DSA Patterns 90-Day Course — India’s most structured patterns-based DSA series. Hashtags: #SlidingWindow #DynamicSlidingWindow #LeetCode1838 #FrequencyOfMostFrequentElement #BabuaDSAPatterns #DSAforInterviews #CodingInterviewPrep #CTOBhaiya #DSA90DaysCourse #LeetCodeHardProblems #FAANGInterviewPrep #DSAPatternsCourse #DataStructuresAndAlgorithms #SlidingWindowPattern #CodingPreparation #TechInterviews #LeetCodeSolutions #InterviewCodingQuestions #DSARevision #BabuaStyleDSA Your Queries sliding window dynamic sliding window frequency of most frequent element leetcode 1838 sliding window revision babua dsa patterns cto bhaiya dsa dsa 90 days course leetcode sliding window problems dynamic window technique faang interview prep coding interview questions data structures and algorithms sliding window explanation leetcode solutions dsa for beginners dsa for placements coding interview preparation babua style dsa CHAPTERS 00:00 Introduction #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/wPphOQuJNaU https://www.techtube.co.in/tutorials/n-queens-backtracking-leetcode-51-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Ph95IHmRp5M/maxresdefault.jpg N-Queens - Backtracking - Leetcode 51 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/n-queens 0:00 - Read the problem 3:56 - Drawing Explanation 12:27 - Coding Explanation leetcode 51 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #backtracking #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/Ph95IHmRp5M https://www.techtube.co.in/tutorials/n-queens-ii-leetcode-52-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/nalYyLZgvCY/maxresdefault.jpg N-Queens II - Leetcode 52 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/n-queens-ii 0:00 - Read the problem 1:40 - Drawing Explanation 8:45 - Coding Explanation leetcode 52 #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/nalYyLZgvCY https://www.techtube.co.in/tutorials/n-queens-n-knights-sudoku-solver-leetcode-backtracking-questions 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/nC1rbW2YSz0/maxresdefault.jpg N-Queens, N-Knights, Sudoku Solver (LeetCode) - Backtracking Questions Here we cover some important #backtracking questions such as N-Queens, N-Knights, Sudoku Solver (LeetCode), including theory + code + tips on how to solve such problems in various ways. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00:00 Introduction 0:00:57 Q1 : N-Queens Problem 0:02:13 How to determine if a problem is of recursion and backtracking? 0:20:12 Code for N-Queens Problem 0:32:05 Complexity Analysis (Correction: Linear Recurrence Relation Method*) 0:37:48 How to eliminate for loops? 0:39:01 Q2 : N-Knights Problem 0:44:05 Code for N-Knights Problem 0:52:51 Q3 : Sudoku Solver Problem (LeetCode) 1:06:47 Code for Sudoku Solver Problem 1:07:38 Correction: board[row][i] == num 1:10:47 Code for Sudoku Solver Problem 1:17:03 Complexity Analysis for Sudoku Solver Problem 1:18:20 Outro #recursion #placement #dsa #interviews https://www.youtube.com/embed/nC1rbW2YSz0 https://www.techtube.co.in/tutorials/n-th-tribonacci-number-leetcode-1137 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/3lpNp5Ojvrw/maxresdefault.jpg N-th Tribonacci Number - Leetcode 1137 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Solving the Nth tribonacci problem, today's daily leetcode problem, on January 29th. 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/n-th-tribonacci-number 0:00 - Read the problem 0:30 - Drawing Explanation 1:55 - Coding Explanation leetcode 1137 #neetcode #leetcode #python https://www.youtube.com/embed/3lpNp5Ojvrw https://www.techtube.co.in/tutorials/network-delay-time-dijkstras-algorithm-leetcode-743 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/EaphyqKU4PQ/maxresdefault.jpg Network Delay Time - Dijkstra's algorithm - Leetcode 743 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/network-delay-time 0:00 - Read the problem 4:37 - Drawing Explanation 14:37 - Coding Explanation leetcode 743 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/EaphyqKU4PQ https://www.techtube.co.in/tutorials/new-matrix-chain-multiplication-using-dynamic-programming-formula 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/_WncuhSJZyA/hqdefault.jpg [New] Matrix Chain Multiplication using Dynamic Programming Formula Matrix Chain Multiplication using Dynamic Programming Formula PATREON : https://www.patreon.com/bePatron?u=20475192 Courses on Udemy ================ Java Programming https://www.udemy.com/course/java-se-programming/?referralCode=C71BADEAA4E7332D62B6 Data Structures using C and C++ https://www.udemy.com/course/datastructurescncpp/?referralCode=BD2EF8E61A98AB5E011D C++ Programming https://www.udemy.com/course/cpp-deep-dive/?referralCode=E4246A516919D7E84225 https://www.youtube.com/embed/_WncuhSJZyA https://www.techtube.co.in/tutorials/next-permutation-intuition-in-detail-brute-to-optimal 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/JDOXKqF60RQ/maxresdefault.jpg Next Permutation - Intuition in Detail 🔥 | Brute to Optimal Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/JDOXKqF60RQ https://www.techtube.co.in/tutorials/non-overlapping-intervals-leetcode-435-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/nONCGxWoUfM/maxresdefault.jpg Non-Overlapping Intervals - Leetcode 435 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ✔️ SPREADSHEET BLIND-75: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/non-overlapping-intervals 0:00 - Read the problem 2:22 - Drawing Explanation 9:58 - Coding Explanation leetcode 435 This question was identified as a microsoft interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #microsoft #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/nONCGxWoUfM https://www.techtube.co.in/tutorials/number-of-1-bits-leetcode-191-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/5Km3utixwZs/maxresdefault.jpg Number of 1 Bits - Leetcode 191 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ✔️ SPREADSHEET BLIND-75: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/number-of-one-bits 0:00 - Read the problem 1:10 - Explain Solution #1 4:33 - Coding Solution #1 5:40 - Explain Solution #2 11:03 - Coding Solution #2 leetcode 191 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #amazon #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/5Km3utixwZs https://www.techtube.co.in/tutorials/number-of-connected-components-in-an-undirected-graph-union-find-leetcode-323-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/8f1XPm4WOUc/maxresdefault.jpg Number of Connected Components in an Undirected Graph - Union Find - Leetcode 323 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/count-connected-components 0:00 - Read the problem 4:36 - Drawing Explanation 11:00 - Coding Explanation leetcode 323 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #union #find #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/8f1XPm4WOUc https://www.techtube.co.in/tutorials/number-of-islands-leetcode-200-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/pV2kpPD66nE/maxresdefault.jpg NUMBER OF ISLANDS - Leetcode 200 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Solve it yourself: https://neetcode.io/problems/count-number-of-islands 0:00 - Conceptual Solution 5:00 - Coding #Coding #Programming #CodingInterview Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/pV2kpPD66nE https://www.techtube.co.in/tutorials/number-of-subarrays-with-xor-k-brute-better-optimal 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/eZr-6p0B7ME/maxresdefault.jpg Number of Subarrays with xor K | Brute - Better - Optimal Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Number of Subarrays with xor K | Brute - Better - Optimal https://takeuforward.org/plus/dsa/problems/count-subarrays-with-given-xor-k Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/eZr-6p0B7ME https://www.techtube.co.in/tutorials/online-stock-span-leetcode-901-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/slYh0ZNEqSw/maxresdefault.jpg Online Stock Span - Leetcode 901 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/online-stock-span 0:00 - Read the problem 1:30 - Intuition 9:40 - Walkthrough Solution 14:25 - Coding Explanation leetcode 901 #meta #interview #python https://www.youtube.com/embed/slYh0ZNEqSw https://www.techtube.co.in/tutorials/oop-1-introduction-concepts-classes-objects-constructors-keywords 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/BSVKUk58K6U/maxresdefault.jpg OOP 1 | Introduction & Concepts - Classes, Objects, Constructors, Keywords The first video of the complete object oriented programming (#OOP) course in Java. Covering an introduction, important concepts about classes, objects, constructors, memory management, keywords, wrapper classes, and more. Complete OOP playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcno1G3XjUbwzXHL8_EttOuKk Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 0:00:00 Teaser 0:00:30 Introduction 0:01:53 Notes 0:03:08 OOP Introduction 0:07:45 Java Classes 0:10:35 Example of a Class 0:15:47 Java Objects 0:17:05 Class vs Object 0:18:18 Properties of Object 0:20:29 Objects Introduction 0:23:55 How to access instance variables? 0:27:35 How to create objects? 0:34:09 Dynamic Memory Allocation 0:38:24 How to manipulate objects? 0:42:20 Java Constructors 0:49:53 By Default Constructor 0:53:26 Creating Constructors 0:56:20 "this" keyword 1:09:04 Constructor Overloading 1:15:18 Calling a constructor from another constructor 1:18:31 Why we don't use "new" keyword for creating primitive data types? 1:20:35 Memory Allocation of "new" keyword 1:23:36 Wrapper Classes 1:28:07 "final" keyword 1:34:36 Garbage Collection 1:41:07 Outro #placement #dsa #interviews https://www.youtube.com/embed/BSVKUk58K6U https://www.techtube.co.in/tutorials/oop-2-packages-static-singleton-class-in-built-methods 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/_Ya6CN13t8k/maxresdefault.jpg OOP 2 | Packages, Static, Singleton Class, In-built Methods This second video of the complete object oriented programming (#OOP) course in Java will clear some of the most important concepts for you. Covering packages, static elements, singleton class, in-built methods, and more in an easy to understand story based approach! Complete OOP playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcno1G3XjUbwzXHL8_EttOuKk Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00:00 Introduction 0:03:00 Packages example 0:05:30 Java Packages 0:14:22 "import" statement 0:18:57 Static elements example 0:24:09 "static" in Java 0:31:25 Static variable meaning 0:32:42 Non-static member inside a static 0:40:02 Static member inside a non-static 0:47:36 "this" keyword inside static 0:49:29 Initialisation of static variables 0:54:33 Inner Classes 1:05:32 Internal working of some statements 1:10:40 Singleton Class 1:18:03 Outro #placement #dsa #interviews https://www.youtube.com/embed/_Ya6CN13t8k https://www.techtube.co.in/tutorials/oop-3-principles-inheritance-polymorphism-encapsulation-abstraction 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/46T2wD3IuhM/maxresdefault.jpg OOP 3 | Principles - Inheritance, Polymorphism, Encapsulation, Abstraction Important video for OOP interviews! The complete and in-depth explanation with real-world examples of #OOP principles such as Inheritance, Polymorphism, Encapsulation and Abstraction. A detailed explanation of overloading vs overriding, encapsulation vs abstraction vs data hiding, types of inheritance and more! Complete OOP playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcno1G3XjUbwzXHL8_EttOuKk Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= 0:00:00 Introduction 0:01:15 Principles of OOP 0:02:26 Inheritance 0:11:30 Example: Box 0:17:49 Explaination 0:23:31 "private" keyword 0:36:26 "super" keyword 0:48:00 Single Inheritance 1:00:17 Multiple Inheritance 1:04:25 Hierarchial Inheritance 1:07:28 Hybrid Inheritance 1:10:26 Polymorphism 1:12:53 Example: Shapes 1:19:27 Types of Polymorphism 1:19:57 Static Polymorphism 1:20:34 Overloading 1:28:02 Dynamic Polymorphism 1:29:24 Overriding 1:34:08 How Overriding Works? 1:39:05 How Java determines which method to run? 1:45:17 "final" keyword 1:50:49 Can we override static methods? 1:57:02 Encapsulation 1:58:22 Abstraction 2:00:14 Encapsulation vs Abstraction 2:05:33 Example 2:09:33 Data Hiding 2:11:47 Outro #placement #dsa #interviews https://www.youtube.com/embed/46T2wD3IuhM https://www.techtube.co.in/tutorials/oop-4-access-control-in-built-packages-object-class 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/W145DXs8fFg/maxresdefault.jpg OOP 4 | Access Control, In-built Packages, Object Class This fourth video of the complete object oriented programming (#OOP) course in Java will clear some of the most important concepts for you. Covering access control, in-built packages, object class, and more! Complete OOP playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcno1G3XjUbwzXHL8_EttOuKk Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 00:00 Introduction 01:04 Example: private, public and protected modifiers 12:29 Rules for modifiers 15:56 When to use which modifier? 18:03 Important point for protected modifier 26:10 More about Packages 27:17 In-built Packages 27:36 "lang" package 28:52 "io" package 29:31 "util" package 30:37 "applet" package 31:13 "awt" package 31:49 "net" package 32:23 Object Class 34:13 Object Methods 35:31 hashCode Method 39:28 equals Method 46:06 instanceof Operator 47:50 getClass Method 50:06 Outro #placement #dsa #interviews https://www.youtube.com/embed/W145DXs8fFg https://www.techtube.co.in/tutorials/oop-5-abstract-classes-interfaces-annotations 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/rgHZa7-Dibg/maxresdefault.jpg OOP 5 | Abstract Classes, Interfaces, Annotations This fifth video of the complete object oriented programming (#OOP) course in Java will clear some of the most important concepts for you about multiple inheritance. Covering abstract classes, interfaces, annotations, and more! Complete OOP playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcno1G3XjUbwzXHL8_EttOuKk Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00:00 Introduction 0:00:30 Multiple Inheritance Problem 0:01:08 Abstract Classes 0:06:38 Example of Abstract Classes 0:16:45 Abstract Constructors 0:17:15 Object of an Abstract Class 0:17:40 Abstract Static Methods 0:18:04 Static Methods in Abstract Classes 0:21:52 "final" Keyword in Abstract Class 0:24:18 Multiple Inheritance using Abstract Classes 0:25:10 Interfaces 0:31:29 Example of Interfaces 0:43:41 Variable of Interface Type 0:47:42 Separate Classes in Same Interface 0:55:01 Extending Interfaces 0:57:18 Annotations 1:02:05 Important point regarding Static Interface methods 1:06:17 Nested Interfaces 1:09:31 Outro #placement #dsa #interviews https://www.youtube.com/embed/rgHZa7-Dibg https://www.techtube.co.in/tutorials/oop-6-generics-custom-arraylist-lambda-expressions-exception-handling-object-cloning 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/OY2lPr8h93U/maxresdefault.jpg OOP 6 | Generics, Custom ArrayList, Lambda Expressions, Exception Handling, Object Cloning This sixth video of the complete object oriented programming (#OOP) course in Java will clear some of the most important concepts for you such as: - generics - custom ArrayList - comparing objects - lambda expressions - exception handling - object cloning Complete OOP playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcno1G3XjUbwzXHL8_EttOuKk Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00:00 Introduction 0:01:48 Custom ArrayList 0:15:09 Problem with Custom ArrayList 0:17:17 Custom ArrayList using Generics 0:19:32 Working with Generics 0:30:35 Using Java Wildcards 0:33:55 Comparison Objects 0:48:14 Lambda Functions 0:56:45 Exception Handling 1:03:03 Exception Handling Keywords 1:09:44 Creating Custom Exception 1:12:32 Object Cloning 1:20:44 Shallow and Deep Copy 1:22:52 Explaination of Shallow Copying 1:25:32 Explaination of Deep Copying 1:30:44 Outro #placement #dsa #interviews https://www.youtube.com/embed/OY2lPr8h93U https://www.techtube.co.in/tutorials/oop-7-collections-framework-vector-class-enums-in-java 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/9ogGan-R1pc/maxresdefault.jpg OOP 7 | Collections Framework, Vector Class, Enums in Java This seventh video of the complete object oriented programming (#OOP) course in Java will clear some of the most important concepts for you such as: - collections framework - vector class - enums in Java Complete OOP playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcno1G3XjUbwzXHL8_EttOuKk Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 00:00 Introduction 00:50 Collections Framework 02:12 Need of Collection Framework in Java 04:50 Understanding Collection Framework 11:10 Vector Class 11:32 Vector Synchronisation 13:37 Vector Code Example 15:04 Enums in Java 22:57 Enum Inheritance 26:18 Outro #placement #dsa #interviews https://www.youtube.com/embed/9ogGan-R1pc https://www.techtube.co.in/tutorials/open-the-lock-leetcode-752-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Pzg3bCDY87w/maxresdefault.jpg Open the Lock - Leetcode 752 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link:https://neetcode.io/problems/open-the-lock 0:00 - Read the problem 2:14 - Drawing Explanation 7:43 - Coding Explanation leetcode 752 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #facebook #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/Pzg3bCDY87w https://www.techtube.co.in/tutorials/pacific-atlantic-water-flow-leetcode-417-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/s-VkcjHqkGI/maxresdefault.jpg Pacific Atlantic Water Flow - Leetcode 417 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/pacific-atlantic-water-flow 0:00 - Read the problem 1:08 - Drawing Explanation 8:45 - Coding Explanation leetcode 417 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #graph #dfs #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/s-VkcjHqkGI https://www.techtube.co.in/tutorials/palindrome-partitioning-backtracking-leetcode-131 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/3jvWodd7ht0/maxresdefault.jpg Palindrome Partitioning - Backtracking - Leetcode 131 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/palindrome-partitioning 0:00 - Read the problem 1:40 - Drawing Explanation 6:00 - Coding Explanation leetcode 131 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #palindrome #partition #python https://www.youtube.com/embed/3jvWodd7ht0 https://www.techtube.co.in/tutorials/palindromic-substrings-leetcode-647-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/4RACzI5-du8/maxresdefault.jpg Palindromic Substrings - Leetcode 647 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/palindromic-substrings 0:00 - Read the problem 2:54 - Drawing Explanation 11:25 - Coding Explanation leetcode 647 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #palindromic #substrings#python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/4RACzI5-du8 https://www.techtube.co.in/tutorials/partition-equal-subset-sum-dynamic-programming-leetcode-416-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/IsvocB5BJhw/maxresdefault.jpg Partition Equal Subset Sum - Dynamic Programming - Leetcode 416 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/partition-equal-subset-sum 0:00 - Read the problem 1:27 - Drawing Explanation 10:47 - Coding Explanation leetcode 416 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #partition #subset #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/IsvocB5BJhw https://www.techtube.co.in/tutorials/partition-labels-leetcode-763-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/B7m8UmZE-vw/maxresdefault.jpg Partition Labels - Leetcode 763 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/partition-labels 0:00 - Read the problem 2:28 - Drawing Explanation 11:34 - Coding Explanation leetcode 763 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/B7m8UmZE-vw https://www.techtube.co.in/tutorials/partition-to-k-equal-sum-subsets-backtracking-leetcode-698-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/mBk4I0X46oI/maxresdefault.jpg Partition to K Equal Sum Subsets - Backtracking - Leetcode 698 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/partition-to-k-equal-sum-subsets 0:00 - Read the problem 3:09 - Explain Solution #1 5:42 - Explain Solution #2 9:32 - Coding Explanation leetcode 698 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/mBk4I0X46oI https://www.techtube.co.in/tutorials/pascal-triangle-finding-ncr-in-minimal-time 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/bR7mQgwQ_o8/maxresdefault.jpg Pascal Triangle | Finding nCr in minimal time Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/bR7mQgwQ_o8 https://www.techtube.co.in/tutorials/path-with-minimum-effort-leetcode-1631-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/XQlxCCx2vI4/maxresdefault.jpg Path with Minimum Effort - Leetcode 1631 - Python Solving leetcode 1631, path with minimum effort, todays daily leetcode problem on september 15. 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/path-with-minimum-effort 0:00 - Read the problem 0:30 - Drawing Explanation 6:11 - Coding Explanation leetcode 1631 #neetcode #leetcode #python https://www.youtube.com/embed/XQlxCCx2vI4 https://www.techtube.co.in/tutorials/perfect-squares-dynamic-programming-leetcode-279-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/HLZLwjzIVGo/maxresdefault.jpg Perfect Squares - Dynamic Programming - Leetcode 279 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/perfect-squares 0:00 - Read the problem 1:05 - Drawing Explanation 11:20 - Coding Explanation leetcode 279 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #perfect #squares #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/HLZLwjzIVGo https://www.techtube.co.in/tutorials/permutation-in-string-leetcode-567-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/UbyhOgBN834/maxresdefault.jpg Permutation in String - Leetcode 567 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/permutation-string 0:00 - Read the problem 4:10 - Drawing Explanation 11:42 - Coding Explanation leetcode 567 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #microsoft #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/UbyhOgBN834 https://www.techtube.co.in/tutorials/permutation-with-case-change-recursion 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/J2Er5XceU_I/maxresdefault.jpg Permutation with Case Change | Recursion Link: https://www.patreon.com/adityaVerma Video Pdf Notes And Code: https://www.patreon.com/posts/38831476 Problem Description [we have assumed only lower case string]: https://www.geeksforgeeks.org/permute-string-changing-case/ Print all permutations of a string keeping the sequence but changing cases. Examples: Input : ab Output : AB Ab ab aB . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/J2Er5XceU_I https://www.techtube.co.in/tutorials/permutation-with-spaces 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/1cspuQ6qHW0/maxresdefault.jpg Permutation with spaces Link: https://www.patreon.com/adityaVerma Video Pdf Notes And Code: https://www.patreon.com/posts/38785851 Problem Description: https://practice.geeksforgeeks.org/problems/permutation-with-spaces/0 Given a string you need to print all possible strings that can be made by placing spaces (zero or one) in between them. Output should be printed in sorted increasing order of strings. Input: str[] = "ABC" Output: (A B C)(A BC)(AB C)(ABC) . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/1cspuQ6qHW0 https://www.techtube.co.in/tutorials/permutations-ii-backtracking-leetcode-47 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/qhBVWf0YafA/maxresdefault.jpg Permutations II - Backtracking - Leetcode 47 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/permutations-ii 0:00 - Read the problem 1:45 - Drawing Explanation 7:42 - Coding Explanation leetcode 47 This question was identified as a Google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #permutations #programming #python https://www.youtube.com/embed/qhBVWf0YafA https://www.techtube.co.in/tutorials/permutations-leetcode-46-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/FZe0UqISmUw/maxresdefault.jpg Permutations - Leetcode 46 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/permutations 0:00 - Read the problem 0:30 - Drawing Explanation 6:08 - Coding Recursive 9:35 - Coding Iterative leetcode 46 #neetcode #leetcode #python https://www.youtube.com/embed/FZe0UqISmUw https://www.techtube.co.in/tutorials/plus-one-leetcode-66-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/jIaA8boiG1s/maxresdefault.jpg Plus One - Leetcode 66 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/plus-one 0:00 - Read the problem 1:40 - Drawing Explanation 4:50 - Coding Explanation leetcode 66 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/jIaA8boiG1s https://www.techtube.co.in/tutorials/powx-n-x-to-the-power-of-n-leetcode-50-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/g9YQyYi4IQQ/maxresdefault.jpg Pow(x, n) - X to the power of N - Leetcode 50 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/pow-x-n 0:00 - Read the problem 1:40 - Drawing Explanation 7:40 - Coding Explanation leetcode 50 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #amazon #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/g9YQyYi4IQQ https://www.techtube.co.in/tutorials/prims-algorithm-minimum-spanning-tree-min-cost-to-connect-all-points-leetcode-1584-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/f7JOBJIC-NA/maxresdefault.jpg Prim's Algorithm - Minimum Spanning Tree - Min Cost to Connect all Points - Leetcode 1584 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/min-cost-to-connect-points 0:00 - Read the problem 3:44 - Drawing Explanation 16:32 - Coding Explanation leetcode 1584 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #prims #algorithm #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/f7JOBJIC-NA https://www.techtube.co.in/tutorials/print-n-bit-binary-numbers-having-more-1s-than-0s-for-any-prefix 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/U81n0UYtk98/maxresdefault.jpg Print N-bit binary numbers having more 1’s than 0’s for any prefix SORRY FOR THE LOW AUDIO, I AM STILL EXPERIMENTING WITH DIFFERENT AUDIO DEVICES AND QUALITIES. Patreon Link: https://www.patreon.com/adityaVerma Video Pdf Notes And Code: https://www.patreon.com/posts/39695797 Problem Description: https://practice.geeksforgeeks.org/problems/print-n-bit-binary-numbers-having-more-1s-than-0s/0 Given a positive integer N, print all N bit binary numbers having more 1’s than 0’s for any prefix of the number. Input: 2 2 3 Output: 11 10 111 110 101 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/U81n0UYtk98 https://www.techtube.co.in/tutorials/print-subsets-print-powersets-print-all-subsequences 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Yg5a2FxU4Fo/maxresdefault.jpg Print Subsets | Print PowerSets | Print all Subsequences Print all subsets of a String. Problem Description: https://practice.geeksforgeeks.org/problems/power-set-using-recursion/1/?track=sp-recursion&batchId=105 Link: https://www.patreon.com/adityaVerma Video Pdf Notes: https://www.patreon.com/posts/38704785 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/Yg5a2FxU4Fo https://www.techtube.co.in/tutorials/print-unique-subsets-and-variations 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/lfFqW1DTsqM/maxresdefault.jpg Print unique subsets And Variations Link: https://www.patreon.com/adityaVerma Video Pdf Notes And Code: https://www.patreon.com/posts/38828164 Problem Description: https://practice.geeksforgeeks.org/problems/subsets/0 Given an array of integers that might contain duplicates, return all possible subsets. Note: Elements in a subset must be in non-descending order. The solution set must not contain duplicate subsets. The subsets must be sorted lexicographically. . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/lfFqW1DTsqM https://www.techtube.co.in/tutorials/product-of-array-except-self-leetcode-238-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/bNvIQI2wAjk/maxresdefault.jpg Product of Array Except Self - Leetcode 238 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/products-of-array-discluding-self 0:00 - Read the problem 2:09 - Drawing Explanation 9:47 - Coding Explanation leetcode 238 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #product #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/bNvIQI2wAjk https://www.techtube.co.in/tutorials/quick-sort-for-beginners-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/WIrA4YexLRQ/maxresdefault.jpg Quick Sort For Beginners | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/WIrA4YexLRQ https://www.techtube.co.in/tutorials/quick-sort-using-recursion-theory-complexity-code 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Z8svOqamag8/maxresdefault.jpg Quick Sort Using Recursion (Theory + Complexity + Code) In this video, we cover the quick sort algorithm. Including the theory, code implementation using recursion, space and time complexity analysis, along with comparison with merge sort. We also see how in-built sorting algorithms work. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 00:00 Introduction 03:01 What is Pivot? 04:43 Recursive Quick Sort 09:58 How to put pivot at correct position? 17:55 How to pick the pivot? 20:15 Complexity comparison of pivot positions 27:45 Important Notes 29:32 Hybrid Sorting Algorithms 31:49 Code for Quick Sort 39:12 Internal Sorting Algorithm 41:20 Outro #sorting #placement #dsa #interviews https://www.youtube.com/embed/Z8svOqamag8 https://www.techtube.co.in/tutorials/radix-sort-algorithm-theory-code 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/mLi6VQDqAOs/maxresdefault.jpg Radix Sort Algorithm - Theory + Code In this video in the sorting algorithm series, we delve deep into radix sort. We will examine how the algorithm works, conduct a complexity analysis, explore optimization techniques, and provide code examples. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/RadixSort - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org #dsa #placement https://www.youtube.com/embed/mLi6VQDqAOs https://www.techtube.co.in/tutorials/range-sum-query-2d-immutable-leetcode-304-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/KE8MQuwE2yA/maxresdefault.jpg Range Sum Query 2D - Immutable - Leetcode 304 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/range-sum-query-2d-immutable 0:00 - Read the problem 1:15 - Drawing Explanation 7:31 - Coding Explanation leetcode 304 #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/KE8MQuwE2yA https://www.techtube.co.in/tutorials/re-1-introduction-to-recursion-recursion-tree-stack-space-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/yVdKa8dnKiE/maxresdefault.jpg Re 1. Introduction to Recursion | Recursion Tree | Stack Space | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/yVdKa8dnKiE https://www.techtube.co.in/tutorials/re-2-problems-on-recursion-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/un6PLygfXrA/maxresdefault.jpg Re 2. Problems on Recursion | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/un6PLygfXrA https://www.techtube.co.in/tutorials/re-3-parameterised-and-functional-recursion-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/69ZCDFy-OUo/maxresdefault.jpg Re 3. Parameterised and Functional Recursion | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/69ZCDFy-OUo https://www.techtube.co.in/tutorials/re-4-problems-on-functional-recursion-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/twuC1F6gLI8/maxresdefault.jpg Re 4. Problems on Functional Recursion | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/twuC1F6gLI8 https://www.techtube.co.in/tutorials/re-5-multiple-recursion-calls-problems-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/kvRjNm4rVBE/maxresdefault.jpg Re 5. Multiple Recursion Calls | Problems | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/kvRjNm4rVBE https://www.techtube.co.in/tutorials/rearrange-array-elements-by-sign-2-varieties-of-same-problem 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/h4aBagy4Uok/maxresdefault.jpg Rearrange Array Elements by Sign | 2 Varieties of same Problem Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Rearrange the array in alternating positive and negative items - https://takeuforward.org/plus/dsa/problems/rearrange-array-elements-by-sign Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/h4aBagy4Uok https://www.techtube.co.in/tutorials/reconstruct-itinerary-leetcode-332-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/ZyB_gQ8vqGA/maxresdefault.jpg Reconstruct Itinerary - Leetcode 332 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/reconstruct-flight-path 0:00 - Understand the problem 4:00 - Drawing Explanation 11:49 - Coding Explanation leetcode 332 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/ZyB_gQ8vqGA https://www.techtube.co.in/tutorials/recursion-array-questions-theory-code-tips 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/sTdiMLom00U/maxresdefault.jpg Recursion - Array Questions (Theory + Code + Tips) In this video, we cover #recursion questions that deal with arrays. This is an important video as it teaches you which technique to use when. Things like passing arrays in arguments, returning arrays in recursion, creating local objects then sharing values, and more. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00:00 Introduction 0:03:18 Q1 : Sorted Array 0:18:42 Q2 : Linear Search 0:27:09 Q3 : Linear Search (on multiple occurrences) 0:30:50 Q4 : Return an ArrayList 0:49:47 Q5 : Return the list without passing the argument 1:04:19 Q6 : Rotated Binary Search 1:17:52 Outro #placement #dsa #interviews https://www.youtube.com/embed/sTdiMLom00U https://www.techtube.co.in/tutorials/recursion-google-amazon-questions-dice-throw-letter-combinations-of-a-phone-number 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/9ByWqPzfXDU/maxresdefault.jpg Recursion Google, Amazon Questions: Dice Throw & Letter Combinations of a Phone Number In this video we cover some important questions on #recursion being asked in companies like Google and Amazon. Not only that, we also look at how to approach such problems, the thought process and come up with a solution. LeetCode problems: - Number of Dice Rolls With Target Sum - Letter Combinations of a Phone Number Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 00:00 Introduction 01:38 Q1 : Letter Combinations of a Phone Number 16:41 Code for Q1 20:41 Returning Q1 output as an ArrayList 24:58 Returning the count 27:09 Q2 : Number of Dice Rolls with Target Sum 32:40 Code for Q2 34:25 Returning Q2 output as an ArrayList 36:18 Dice with custom number of faces 37:50 Outro #placement #dsa #interviews https://www.youtube.com/embed/9ByWqPzfXDU https://www.techtube.co.in/tutorials/recursion-introduction-and-identification 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/kHi1DUhp9kM/maxresdefault.jpg Recursion Introduction and Identification Playlist link: https://www.youtube.com/playlist?list=PL_z_8CaSLPWeT1ffjiImo0sYTcnLzo-wY Here I talk about what is the correct way to approach a Recursive problem and How one could Identify whether its Recursion or not. The Notes that I taught in the video and the Working Code (if any) will be available on my Patreon page under the "Notes, Code And Support" tier. Link: https://www.patreon.com/adityaVerma Video Pdf Notes: https://www.patreon.com/posts/38569136 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/kHi1DUhp9kM https://www.techtube.co.in/tutorials/recursion-is-everywhere 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/ZQMQW8YVuZ4/maxresdefault.jpg Recursion is Everywhere !! Recursion is the most used Algorithm, which is used in almost any data structure: Tree, Linked List, Graph ands many more. It has its own sub algorithms which are Dynamic Programming, Backtracking, And Divide and Conquer. Patreon Page: Link: https://www.patreon.com/adityaVerma Video Pdf Notes: https://www.patreon.com/posts/38569243 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/ZQMQW8YVuZ4 https://www.techtube.co.in/tutorials/recursion-level-1-questions-theory-code-tips 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/JxILxTwHukM/maxresdefault.jpg Recursion - Level 1 Questions (Theory + Code + Tips) In this video, we cover level 1 questions of #recursion. These are questions that will build the foundation of various concepts snd improve the thinking process. It will also set the base for future videos. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00:00 Introduction 0:02:26 Revision 0:02:40 Q-01 : n to 1 0:08:52 Q-02 : 1 to n 0:15:04 Q-03 : Product of n to 1 0:23:37 Q-04 : Sum of n to 1 0:24:28 Q-05 : Sum of digits 0:30:42 Q-06 : Product of digits 0:31:56 Concept : Passing Numbers 0:35:19 Q-07 : Reverse a number 0:40:29 Way-1 for Q-07 0:48:20 Way-2 for Q-07 0:54:40 Q-08 : Palindrome 0:58:07 Q-09 : Count Zeros 1:08:05 Q-10 : Count Steps 1:12:41 Outro #placement #dsa #interviews https://www.youtube.com/embed/JxILxTwHukM https://www.techtube.co.in/tutorials/recursion-pattern-questions-bubble-sort-selection-sort 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/ymgnIIclCF0/maxresdefault.jpg Recursion - Pattern Questions + Bubble Sort + Selection Sort In this video we solve some of the pattern problems using #recursion. Using which we implement bubble sort and selection sort with recursion. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 00:00 Introduction 01:19 Q1 : Triangle 1 09:27 Q2 : Triangle 2 13:44 Q3 : Bubble Sort 21:32 Q4 : Selection Sort 34:17 Outro #placement #dsa #interviews https://www.youtube.com/embed/ymgnIIclCF0 https://www.techtube.co.in/tutorials/recursion-permutations-theory-code-tips 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/gDGw0cvFXPQ/maxresdefault.jpg Recursion - Permutations (Theory + Code + Tips) This is part 2 of the subset + string recursion series. Here we cover some important tips to permutation problems with #recursion. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 00:00 Introduction 00:22 What is Permutation? 01:53 Permutation using Recursion 11:48 Code for Permutation 15:42 Returning output as an ArrayList 20:12 Counting Number of Permutations 24:35 Outro #placement #dsa #interviews https://www.youtube.com/embed/gDGw0cvFXPQ https://www.techtube.co.in/tutorials/recursion-subset-subsequence-string-questions 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/gdifkIwCJyg/maxresdefault.jpg Recursion Subset, Subsequence, String Questions This is part 1 of the subset + string #recursion series. Here we cover some important tips to solve string recursion problems, along with subset patterns and how to convert recursive programs to iterative. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00:00 Introduction 0:01:40 Basic String Questions using Recursion 0:02:19 Q1 : Skip a character 0:17:30 Q2 : Skip a string 0:21:32 Q3 : Skip a string if it's not the required string 0:24:34 Subsets Introduction 0:31:35 When to apply subset problem? 0:32:35 Q4 : Subsequences 0:43:11 Q5 : Return an ArrayList of string 0:52:10 Q6 : Print ASCII value of a character 0:54:15 Q7 : Subsequences with ASCII values 0:58:21 Q8 : Iterative program to print subsequences 1:09:48 Complexity Analysis 1:12:15 Q9 : Subsequences of a string with duplicate elements 1:22:07 Outro #placement #dsa #interviews https://www.youtube.com/embed/gdifkIwCJyg https://www.techtube.co.in/tutorials/redundant-connection-leetcode-684-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/1lNK80tOTfc/maxresdefault.jpg Redundant Connection - Leetcode 684 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/redundant-connection 0:00 - Read the problem 1:40 - Graph Theory 5:07 - Intuition 7:41 - Dry Run 10:14 - Union Find 13:33 - Coding Explanation leetcode 684 #neetcode #leetcode #python https://www.youtube.com/embed/1lNK80tOTfc https://www.techtube.co.in/tutorials/regular-expression-matching-dynamic-programming-top-down-memoization-leetcode-10 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/HAA8mgxlov8/maxresdefault.jpg Regular Expression Matching - Dynamic Programming Top-Down Memoization - Leetcode 10 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/regular-expression-matching Code on Github: https://github.com/neetcode-gh/leetcode/blob/main/10-Regular-Expression-Matching 0:00 - Read the problem 3:55 - Drawing Solution 19:00 - Coding Solution leetcode 10 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #regular #expression #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/HAA8mgxlov8 https://www.techtube.co.in/tutorials/remove-duplicates-from-sorted-array-leetcode-26-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/DEJAZBq0FDA/maxresdefault.jpg Remove Duplicates from Sorted Array - Leetcode 26 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/remove-duplicates-from-sorted-array 0:00 - Read the problem 2:12 - Drawing Explanation 8:24 - Coding Explanation leetcode 26 #sorted #array #python https://www.youtube.com/embed/DEJAZBq0FDA https://www.techtube.co.in/tutorials/remove-element-leetcode-27-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Pcd1ii9P9ZI/maxresdefault.jpg Remove Element - Leetcode 27 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/remove-element 0:00 - Read the problem 1:30 - Drawing Explanation 6:52 - Coding Explanation leetcode 27 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #neetcode #interview #python https://www.youtube.com/embed/Pcd1ii9P9ZI https://www.techtube.co.in/tutorials/remove-nth-node-from-end-of-list-oracle-interview-question-leetcode-19 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/XVuQxVej6y8/maxresdefault.jpg Remove Nth Node from End of List - Oracle Interview Question - Leetcode 19 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/remove-node-from-end-of-linked-list 0:00 - Read the problem 1:10 - Drawing solution 4:20 - Coding solution leetcode 19 This question was identified as an Oracle interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #neetcode #apple #python https://www.youtube.com/embed/XVuQxVej6y8 https://www.techtube.co.in/tutorials/reorganize-string-tesla-interview-question-leetcode-767-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/2g_b1aYTHeg/maxresdefault.jpg Reorganize String - Tesla Interview Question - Leetcode 767 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/reorganize-string 0:00 - Read the problem 4:30 - Drawing Explanation 9:10 - Coding Explanation leetcode 767 This question was identified as a Tesla coding interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #tesla #coding #interview Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/2g_b1aYTHeg https://www.techtube.co.in/tutorials/reverse-a-stack-using-recursion 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/8YXQ68oHjAs/maxresdefault.jpg Reverse a Stack using Recursion Reverse a Stack in O(1) space using Recursion. The Notes that I taught in the video and the Working Code (if any) will be available on my Patreon page under the "Notes, Code And Support" tier. Link: https://www.patreon.com/adityaVerma Video Pdf Notes: https://www.patreon.com/posts/reverse-stack-38641383 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/8YXQ68oHjAs https://www.techtube.co.in/tutorials/reverse-bits-binary-leetcode-190-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/UcoN6UjAI64/maxresdefault.jpg Reverse Bits - Binary - Leetcode 190 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/reverse-bits 0:00 - Read the problem 1:15 - Drawing Explanation 7:13 - Coding Explanation leetcode 190 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #reverse #bits #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/UcoN6UjAI64 https://www.techtube.co.in/tutorials/reverse-integer-bit-manipulation-leetcode-7-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/HAgLH58IgJQ/maxresdefault.jpg Reverse Integer - Bit Manipulation - Leetcode 7 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ✔️ SPREADSHEET BLIND-75: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 Code on Github: https://github.com/neetcode-gh/leetcode/blob/main/7-Reverse-Integer.py ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/reverse-integer 0:00 - Read the problem 5:07 - Drawing Explanation 9:05 - Coding Explanation leetcode 7 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #bit #manipulation #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/HAgLH58IgJQ https://www.techtube.co.in/tutorials/reverse-linked-list-ii-leetcode-92-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/RF_M9tX4Eag/maxresdefault.jpg Reverse Linked List II - Leetcode 92 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/reverse-linked-list-ii 0:00 - Read the problem 4:08 - Drawing Explanation 7:47 - Coding Phase-1 11:00 - Coding Phase-2 14:50 - Coding Phase-3 leetcode 92 This question was identified as a microsoft interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/RF_M9tX4Eag https://www.techtube.co.in/tutorials/reverse-linked-list-iterative-and-recursive-leetcode-206-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/G0_I-ZF0S38/maxresdefault.jpg Reverse Linked List - Iterative AND Recursive - Leetcode 206 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/reverse-a-linked-list 0:00 - Read the problem 0:50 - Drawing Iterative 3:00 - Coding Iterative 4:48 - Drawing Recursive 8:15 - Coding Recursive leetcode 206 https://www.youtube.com/embed/G0_I-ZF0S38 https://www.techtube.co.in/tutorials/reverse-nodes-in-k-group-linked-list-leetcode-25 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/1UOPsfP85V4/maxresdefault.jpg Reverse Nodes in K-Group - Linked List - Leetcode 25 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/reverse-nodes-in-k-group 0:00 - Read the problem 2:10 - Drawing solution 6:45 - Coding solution leetcode 25 This question was identified as a Microsoft interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency/blob/master/Apple%20-%20LeetCode.pdf #linkedlist #microsoft #python https://www.youtube.com/embed/1UOPsfP85V4 https://www.techtube.co.in/tutorials/reverse-pairs-hard-interview-question 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/0e4bZaP3MDI/maxresdefault.jpg Reverse Pairs | Hard Interview Question Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Reverse Pairs | Hard Interview Question https://takeuforward.org/plus/dsa/problems/reverse-pairs Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/0e4bZaP3MDI https://www.techtube.co.in/tutorials/reverse-string-3-ways-leetcode-344-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/_d0T_2Lk2qA/maxresdefault.jpg Reverse String - 3 Ways - Leetcode 344 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/reverse-string 0:00 - Read the problem 1:02 - Iterative Solution 4:16 - Stack Solution 6:18 - Recursive Solution leetcode 344 #microsoft #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/_d0T_2Lk2qA https://www.techtube.co.in/tutorials/roman-to-integer-leetcode-13-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/3jdxYj3DD98/maxresdefault.jpg Roman to Integer - Leetcode 13 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/roman-to-integer 0:00 - Read the problem 1:40 - Drawing Explanation 5:34 - Coding Explanation leetcode 13 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #roman #integer #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/3jdxYj3DD98 https://www.techtube.co.in/tutorials/rotate-array-by-k-places-union-intersection-of-sorted-arrays-move-zeros-to-end-arrays-part-2 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/wvcQg43_V8U/maxresdefault.jpg Rotate Array by K places | Union, Intersection of Sorted Arrays | Move Zeros to End | Arrays Part-2 Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 1.Left rotate an array by D places https://takeuforward.org/plus/dsa/problems/left-rotate-array 2.Move Zeros to end https://takeuforward.org/plus/dsa/problems/move-zeros-to-end 3.Linear Search https://takeuforward.org/plus/dsa/problems/linear-search 4.Find the Union https://takeuforward.org/plus/dsa/problems/union-of-two-sorted-arrays Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/wvcQg43_V8U https://www.techtube.co.in/tutorials/rotate-array-leetcode-189-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/BHr381Guz3Y/maxresdefault.jpg Rotate Array - Leetcode 189 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/rotate-array 0:00 - Read the problem 1:35 - Drawing Explanation 6:33 - Coding Explanation leetcode 189 #rotate #array #python https://www.youtube.com/embed/BHr381Guz3Y https://www.techtube.co.in/tutorials/rotate-image-matrix-leetcode-48 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/fMSJSS7eO1w/maxresdefault.jpg Rotate Image - Matrix - Leetcode 48 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/rotate-matrix 0:00 - Read the problem 3:25 - Drawing explanation 9:55 - Coding explanation leetcode 48 This question was identified as a microsoft interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #microsoft #matrix #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/fMSJSS7eO1w https://www.techtube.co.in/tutorials/rotate-matriximage-by-90-degrees-brute-optimal 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Z0R2u6gd3GU/maxresdefault.jpg Rotate Matrix/Image by 90 Degrees | Brute - Optimal Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Rotate Matrix by 90 degrees - https://takeuforward.org/plus/dsa/problems/rotate-matrix-by-90-degrees Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/Z0R2u6gd3GU https://www.techtube.co.in/tutorials/rotting-oranges-leetcode-994-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/y704fEOx0s0/maxresdefault.jpg Rotting Oranges - Leetcode 994 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/rotting-fruit 0:00 - Read the problem 2:05 - Drawing Explanation 6:05 - Coding Explanation leetcode 994 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/y704fEOx0s0 https://www.techtube.co.in/tutorials/row-major-and-column-major-mapping 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/MJZd6uPi88E/hqdefault.jpg Row-Major and Column-Major Mapping Relative address is used by compiler to get the address of any location in an Array. For Arrays with more than 2D, compilers use Row-Major or Column-Major Mapping https://www.youtube.com/embed/MJZd6uPi88E https://www.techtube.co.in/tutorials/same-tree-leetcode-100-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/vRbbcKXCxOw/maxresdefault.jpg Same Tree - Leetcode 100 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/same-binary-tree 0:00 - Read the problem 1:15 - Drawing Explanation 4:27 - Coding Explanation leetcode 100 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #same #tree #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/vRbbcKXCxOw https://www.techtube.co.in/tutorials/search-a-2d-matrix-leetcode-74-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Ber2pi2C0j0/maxresdefault.jpg Search a 2D Matrix - Leetcode 74 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/search-2d-matrix 0:00 - Read the problem 1:40 - Drawing Explanation 6:42 - Coding Explanation leetcode 74 This question was identified as a microsoft coding interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #binary #search #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/Ber2pi2C0j0 https://www.techtube.co.in/tutorials/search-in-rotated-sorted-array-ii-leetcode-81-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/oUnF7o88_Xc/maxresdefault.jpg Search in Rotated Sorted Array II - Leetcode 81 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/search-in-rotated-sorted-array-ii 0:00 - Read the problem 2:02 - Calculating halfway 3:12 - Drawing Explanation 13:57 - Coding Explanation leetcode 81 #neetcode #leetcode #python https://www.youtube.com/embed/oUnF7o88_Xc https://www.techtube.co.in/tutorials/search-in-rotated-sorted-array-leetcode-33-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/U8XENwh8Oy8/maxresdefault.jpg Search in rotated sorted array - Leetcode 33 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Solve it yourself: https://neetcode.io/problems/find-target-in-rotated-sorted-array 0:00 - Conceptual 8:55 - Coding solution #Coding #Programming #CodingInterview Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/U8XENwh8Oy8 https://www.techtube.co.in/tutorials/search-insert-position-binary-search-leetcode-35-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/K-RYzDZkzCI/maxresdefault.jpg Search Insert Position - Binary Search - Leetcode 35 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/search-insert-position 0:00 - Concept 8:35 - Coding Solution Leetcode 35 #python #leetcode #neetcode https://www.youtube.com/embed/K-RYzDZkzCI https://www.techtube.co.in/tutorials/segment-trees-tutorial-range-queries-interview-questions 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/ciHThtTVNto/maxresdefault.jpg Segment Trees Tutorial | Range Queries | Interview Questions This is the third tutorial in the complete tree playlist of the DSA bootcamp for interview preparation: https://www.youtube.com/playlist?list=PL9gnSGHSqcnqfctdbCQKaw5oZ9Up2cmsq. In this video, we delve into segment trees, one of the most important concepts for coding interviews. Learn how to solve complex range-based queries efficiently. You will learn about the inner workings and use cases of segment trees and follow along as we implement them from scratch, backed by clear explanations and practical examples. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Segment trees code: https://replit.com/@KunalsReplit/Trees-3-Segment - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ======================================================== Timestamps: 00:00:00 About the lecture 00:01:19 Why use segment trees? 00:04:04 Segment trees theory + example 00:16:10 Solving queries in segment trees 00:31:30 Updating elements in segment trees 00:39:28 Code 01:11:07 Closing remarks #trees #placements #dsa https://www.youtube.com/embed/ciHThtTVNto https://www.techtube.co.in/tutorials/selection-sort-algorithm-theory-code 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Nd4SCCIHFWk/maxresdefault.jpg Selection Sort Algorithm - Theory + Code This is the second video in the sorting algorithm series where we cover selection sort in depth. We look at how the algorithm works, the complexity analysis, and code. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00 Introduction 0:38 What is Selection Sort? 4:40 Complexity of Selection Sort 8:21 Worst Case 8:30 Best Case 8:47 Stability 9:01 Use Case 9:20 Algorithm for Selection Sort 11:15 Code for Selection Sort 18:36 Outro #sorting #placement #dsa #interviews https://www.youtube.com/embed/Nd4SCCIHFWk https://www.techtube.co.in/tutorials/serialize-and-deserialize-binary-tree-preorder-traversal-leetcode-297-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/u4JAi2JJhI8/maxresdefault.jpg Serialize and Deserialize Binary Tree - Preorder Traversal - Leetcode 297 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/serialize-and-deserialize-binary-tree 0:00 - Read the problem 1:32 - Drawing Explanation 8:20 - Coding Explanation leetcode 297 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #preorder #traversal #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/u4JAi2JJhI8 https://www.techtube.co.in/tutorials/set-matrix-zeroes-in-place-leetcode-73 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/T41rL0L3Pnw/maxresdefault.jpg Set Matrix Zeroes - In-place - Leetcode 73 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/set-zeroes-in-matrix 0:00 - Drawing O(m*n) Solution 4:20 - Drawing O(m+n) solution 8:25 - Drawing O(1) Soluton 13:05 - Coding O(1) Solution leetcode 73 This question was identified as a Facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #matrix #neetcode #python https://www.youtube.com/embed/T41rL0L3Pnw https://www.techtube.co.in/tutorials/set-matrix-zeroes-o1-space-approach-brute-better-optimal 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/N0MgLvceX7M/maxresdefault.jpg Set Matrix Zeroes | O(1) Space Approach | Brute - Better - Optimal Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/N0MgLvceX7M https://www.techtube.co.in/tutorials/shortest-path-algorithms-dijkstra-and-bellman-ford-simplified 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/2raV0H9KqY8/hqdefault.jpg Shortest Path Algorithms (Dijkstra and Bellman-Ford) - Simplified Shortest path algorithms, Dijkstra and Bellman-Ford algorithm. Algorithms explained with multiple examples, in a different way. https://www.youtube.com/embed/2raV0H9KqY8 https://www.techtube.co.in/tutorials/simplify-path-stack-leetcode-71-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/qYlHrAKJfyA/maxresdefault.jpg Simplify Path - Stack - Leetcode 71 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/simplify-path 0:00 - Read the problem 2:05 - Drawing Explanation 8:15 - Coding Explanation leetcode 71 #stack #path #python https://www.youtube.com/embed/qYlHrAKJfyA https://www.techtube.co.in/tutorials/single-number-leetcode-136-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/qMPX1AOa83k/maxresdefault.jpg Single Number - Leetcode 136 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Python Code: https://github.com/neetcode-gh/leetcode/blob/main/136-Single-Number.py Problem Link: https://neetcode.io/problems/single-number 0:00 - Read the problem 0:38 - O(n) Memory Solution 1:25 - O(1) Memory Solution 6:16 - Coding Solution leetcode 136 This question was identified as an amazon coding interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #amazon #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/qMPX1AOa83k https://www.techtube.co.in/tutorials/single-threaded-cpu-priority-queue-leetcode-1834-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/RR1n-d4oYqE/maxresdefault.jpg Single-Threaded CPU - Priority Queue - Leetcode 1834 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/single-threaded-cpu 0:00 - Read the problem 1:30 - Drawing Explanation 10:13 - Coding Explanation leetcode 1834 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python https://www.youtube.com/embed/RR1n-d4oYqE https://www.techtube.co.in/tutorials/sliding-window-best-time-to-buy-and-sell-stock-leetcode-121-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/1pkOgXD63yU/maxresdefault.jpg Sliding Window: Best Time to Buy and Sell Stock - Leetcode 121 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/buy-and-sell-crypto 0:00 - Read the problem 0:52 - Drawing solution 5:40 - Coding solution Leetcode 121 coding interview question #python #leetcode #neetcode Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/1pkOgXD63yU https://www.techtube.co.in/tutorials/sliding-window-maximum-monotonic-queue-leetcode-239 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/DfljaUwZsOk/maxresdefault.jpg Sliding Window Maximum - Monotonic Queue - Leetcode 239 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/sliding-window-maximum 0:00 - Read the problem 2:20 - Drawing Solution 12:05 - Coding solution leetcode 239 This question was identified as an Apple interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency/blob/master/Apple%20-%20LeetCode.pdf #product #apple #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/DfljaUwZsOk https://www.techtube.co.in/tutorials/solve-any-pattern-question-trick-explained-22-patterns-in-1-shot-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/tNm_NNSB3_w/maxresdefault.jpg Solve any Pattern Question - Trick Explained | 22 Patterns in 1 Shot | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/tNm_NNSB3_w https://www.techtube.co.in/tutorials/solve-any-pattern-question-with-this-trick 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/lsOOs5J8ycw/maxresdefault.jpg Solve Any Pattern Question With This Trick! In this video we'll look at how you can solve any coding #patterns question in a step by step manner, and what the thought process should be like. 👉 Resources - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 00:00 Introduction 02:34 Importance of Pattern Questions 04:44 Prerequisites to solve Pattern Questions 05:03 Approach to solve Pattern Questions 05:14 Step 1 08:32 Step 2 11:12 Step 3 13:05 Pattern Question 02 14:41 Pattern Question 01 16:17 Pattern Question 03 20:41 Pattern Question 04 22:26 Pattern Question 05 33:49 Pattern Question 28 37:40 Pattern Question 30 40:59 Pattern Question 17 45:01 Pattern Question 31 55:53 Outro #placement #dsa #interviews https://www.youtube.com/embed/lsOOs5J8ycw https://www.techtube.co.in/tutorials/sort-a-stack 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/MOGBRkkOhkY/maxresdefault.jpg Sort A Stack Sorting a Stack using Recursion Pdf Notes of the video and C++ code available at: https://www.patreon.com/posts/38641187 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/MOGBRkkOhkY https://www.techtube.co.in/tutorials/sort-an-array-leetcode-912-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/MsYZSinhuFo/maxresdefault.jpg Sort an Array - Leetcode 912 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/sort-an-array 0:00 - Read the problem 0:50 - Drawing Explanation 8:45 - Coding Explanation leetcode 912 #neetcode #leetcode #python https://www.youtube.com/embed/MsYZSinhuFo https://www.techtube.co.in/tutorials/sort-an-array-of-0s-1s-2s-intuition-of-algo-c-java-python-brute-better-optimal 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/tp8JIuCXBaU/maxresdefault.jpg Sort an array of 0's 1's & 2's | Intuition of Algo🔥 | C++ Java Python | Brute-Better-Optimal Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Sort an array of 0's 1's and 2's https://takeuforward.org/plus/dsa/problems/sort-an-array-of-0's-1's-and-2's Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/tp8JIuCXBaU https://www.techtube.co.in/tutorials/sort-an-array-using-recursion 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/AZ4jEY_JAVc/maxresdefault.jpg Sort An array using Recursion Sorting and array using Recursion by using Induction-Hypothesis and Base condition Approach. Pdf notes and code: https://www.patreon.com/posts/38605857 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/AZ4jEY_JAVc https://www.techtube.co.in/tutorials/sort-colors-quicksort-partition-leetcode-75-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/4xbWSRZHqac/maxresdefault.jpg Sort Colors - Quicksort Partition - Leetcode 75 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/sort-colors 0:00 - Read the problem 4:14 - Drawing Explanation 13:00 - Coding Explanation leetcode 75 #quicksort #partition #python https://www.youtube.com/embed/4xbWSRZHqac https://www.techtube.co.in/tutorials/sorting-part-1-selection-sort-bubble-sort-insertion-sort-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/HGk_ypEuS24/maxresdefault.jpg Sorting - Part 1 | Selection Sort, Bubble Sort, Insertion Sort | Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/HGk_ypEuS24 https://www.techtube.co.in/tutorials/spiral-matrix-microsoft-interview-question-leetcode-54 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/BJnMZNwUk1M/maxresdefault.jpg Spiral Matrix - Microsoft Interview Question - Leetcode 54 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/spiral-matrix 0:00 - Read the problem 1:10 - Drawing explanation 9:50 - Coding explanation leetcode 54 This question was identified as a microsoft interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #microsoft #matrix #python https://www.youtube.com/embed/BJnMZNwUk1M https://www.techtube.co.in/tutorials/spiral-traversal-of-a-matrix-spiral-matrix 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/3Zv-s9UUrFM/maxresdefault.jpg Spiral Traversal of a Matrix | Spiral Matrix Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Checkout the problem link 👇🏼 Print the matrix in spiral manner - https://takeuforward.org/plus/dsa/problems/print-the-matrix-in-spiral-manner Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/3Zv-s9UUrFM https://www.techtube.co.in/tutorials/split-array-largest-sum-leetcode-410-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/YUF3_eBdzsk/maxresdefault.jpg Split Array Largest Sum - Leetcode 410 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/split-array-largest-sum 0:00 - Read the problem 2:10 - Explain Brute Force & DP 4:32 - Memoization Code 5:10 - Explain Binary Search 12:21 - Coding Binary Search leetcode 410 #amazon #interview #python https://www.youtube.com/embed/YUF3_eBdzsk https://www.techtube.co.in/tutorials/sqrtx-leetcode-69-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/zdMhGxRWutQ/maxresdefault.jpg Sqrt(x) - Leetcode 69 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/sqrtx 0:00 - Read the problem 0:30 - Drawing Explanation 5:50 - Coding Explanation leetcode 69 #neetcode #leetcode #python https://www.youtube.com/embed/zdMhGxRWutQ https://www.techtube.co.in/tutorials/stacks-and-queues-complete-tutorial-theory-implementation-types-dynamic-circular 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/rHQI4mrJ3cg/maxresdefault.jpg Stacks and Queues Complete Tutorial - Theory + Implementation + Types (Dynamic, Circular) Learn complete #Stacks and #Queues in a single video! One of the most important data structures for coding interviews. Here we also build the data structures from scratch and see how it works internally. Along with the dynamic implementations, circular queues, exception handling and more. Sign up to our newsletter to never miss an update: https://www.commclassroom.org Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00:00 Introduction 0:00:53 Stacks Introduction 0:04:34 Stack Example 0:06:28 Push and Pop 0:07:49 Queues Introduction 0:07:55 Queue Example 0:11:24 Stack Data Structure 0:18:41 Queue Data Structure 0:23:45 When do we use Stacks & Queues? 0:25:02 Java Deque (Deck) 0:28:20 ArrayDeque 0:32:01 Custom Stack Implementation 0:44:12 Stack Exception Handling 0:47:25 Dynamic Stack Implementation 0:54:44 Complexity Analysis 0:55:21 Custom Queue Implementation 1:06:44 Complexity Analysis 1:06:59 Circular Queue Implementation 1:22:56 Dynamic Queue Implementation 1:28:18 Outro #placement #dsa https://www.youtube.com/embed/rHQI4mrJ3cg https://www.techtube.co.in/tutorials/stacks-and-queues-interview-questions-google-facebook-amazon-microsoft 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/S9LUYztYLu4/maxresdefault.jpg Stacks and Queues Interview Questions - Google, Facebook, Amazon, Microsoft In this video, we cover stacks and queues interview questions from Google, Facebook, Amazon, Microsoft and more. Starting with LeetCode easy till hard, in the most easy to understand manner, with complete code and thought process walkthrough. 👉 Resources - Code (fork it to see the solution): https://replit.com/@KunalsReplit/StackAndQueuesQuestions - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! ➡️ Connect with me: http://kunalkushwaha.com ====================================================== Timestamps: 00:00:00 - Introduction 00:04:21 - Thought process for questions 00:08:45 - Q: Implement queue using stacks 00:37:27 - Q: Game of two stacks 01:05:59 - Q: Largest rectangle in histogram 02:01:55 - Q: Valid parentheses 02:12:22 - Q: Minimum add to make parentheses valid 02:20:52 - Q: Minimum insertions to balance a parentheses string 02:22:50 - Outro #placement #dsa #interviews https://www.youtube.com/embed/S9LUYztYLu4 https://www.techtube.co.in/tutorials/stone-game-ii-leetcode-1140-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/I-z-u0zfQtg/maxresdefault.jpg Stone Game II - Leetcode 1140 - Python Solving leetcode 1140 - Stone Game II, today's daily leetcode problem on may 25. 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/stone-game-ii 0:00 - Read the problem 0:30 - Drawing explanation 9:15 - Code Solution 17:35 - Time Complexity leetcode 1140 #neetcode #leetcode #python https://www.youtube.com/embed/I-z-u0zfQtg https://www.techtube.co.in/tutorials/stone-game-iii-leetcode-1406-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/HsLG5QW9CFQ/maxresdefault.jpg Stone Game III - Leetcode 1406 - Python Solving leetcode 1140 - Stone Game III today's daily leetcode problem on may 26. 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/stone-game-iii 0:00 - Read the problem 0:30 - Drawing explanation 9:20 - Code Solution leetcode 1406 #neetcode #leetcode #python https://www.youtube.com/embed/HsLG5QW9CFQ https://www.techtube.co.in/tutorials/stone-game-leetcode-877-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/uhgdXOlGYqE/maxresdefault.jpg Stone Game - Leetcode 877 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/stone-game 0:00 - Intro 3:03 - Explaining O(1) Solution 9:30 - Explaining DP Solution 14:15 - Coding DP Solution leetcode 877 This question was identified as a coding interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/uhgdXOlGYqE https://www.techtube.co.in/tutorials/stop-forgetting-dsa-my-tips-tricks 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/WSFRkPrOfYY/maxresdefault.jpg STOP Forgetting DSA!!! My Tips & Tricks Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Struggling to remember DSA concepts even after solving hundreds of problems? This video gives you the real, practical, battle-tested system that top performers use to remember DSA forever — not just for one placement season. In this session, I break down the 8-step DSA Memory Framework that transforms you from forgetting everything → recalling patterns instantly in interviews. 🔥 What You’ll Learn in This Video ✅ 1. Think in Patterns, Not Problems Why memorising questions fails — and why pattern mastery makes every new problem feel familiar. ✅ 2. The Rule of 4 Revision A spaced-repetition system that aligns with how your brain stores long-term memory: Day 0 Day 2 Day 7 Day 14 Master this = DSA retention skyrockets. ✅ 3. How to Build a Patterns Notebook Document intuitions, mistakes, breakthroughs — not solutions. This becomes your lifelong cheat sheet. ✅ 4. Daily Practice Formula (3–5 problems/day) Why consistency beats weekend marathons every single time. ✅ 5. Forced Recall Technique Close your laptop → write the solution from memory. The fastest way to strengthen problem-solving neurons. ✅ 6. The Power of Re-solving Problems Your brain rewires only when you revisit problems after 2–3 weeks. ✅ 7. Teach to Remember Explaining to a friend or even a wall boosts retention 5×. ✅ 8. Make Mind Maps for Big Topics DP, Graphs, Sliding Window, Trees — convert everything into visual maps. 🧠 Ultimate Formula for DSA Mastery DSA Forever = Patterns × Spaced Revision × Repeated Recall × Teaching × Consistency Follow this for 60–90 days and you will NEVER forget DSA again. 🎁 BONUS Comment below if you want a personalised DSA retention plan based on your learning speed and available hours. 🚀 Don't forget: LIKE ❤️ | SUBSCRIBE 🔔 | SHARE with your Babua gang Let’s crack placements — pattern-wise, Babua style! CHAPTERS 00:00 Introduction 01:00 Topic VS Patterns wise DSA 03:25 Think in Patterns, not Problems 06:09 Revise using the "Rule of 4" 08:19 Maintain a Person "Patterns Notebook" 10:58 Solve 3-5 problems daily for 90 days 12:46 Forced Recall VS Reading Solutions 15:42 Solve the same problem again after 2-3 weeks 18:08 Teach someone 21:30 Make mind-maps for topics 24:05 My Formula 24:45 Conclusion Hashtags: #DSA #DSAforPlacements #CodingInterviewPrep #DSAPatterns #BabuaDSA #CTOBhaiya #90DaysDSACourse #LearnDSA #DSARevision #TechInterviews #FAANGPreparation #SoftwareEngineeringPrep #ProgrammingTips #LeetCodePrep #GeeksforGeeks #CompetitiveProgramming #SpacedRepetition #StudyTechniques #CodingMotivation #DataStructuresAndAlgorithms #DSAMastery #InterviewPreparation #CodeSmarter #DSAStudyPlan Your Queries dsa patterns dsa revision dsa memory tricks how to remember dsa 90 days dsa course babua dsa cto bhaiya dsa coding interview prep spaced repetition dsa dsa study plan leetcode patterns faang interview preparation how to study dsa effectively dsa learning roadmap dsa consistency tips data structures and algorithms dsa for beginners dsa for placements dsa tricks to remember competitive programming guide #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/WSFRkPrOfYY https://www.techtube.co.in/tutorials/stop-learning-dsa-the-wrong-way-topic-wise-vs-pattern-wise-dsa-which-one-should-you-learn-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/BxmfR2Exnpc/maxresdefault.jpg Stop Learning DSA the Wrong way: Topic-Wise vs Pattern-Wise DSA! Which one should you learn? #dsa Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course In this video, we finally answer one of the biggest DSA questions: Should you study DSA topic-wise (arrays, strings, trees…) or pattern-wise (two pointers, sliding window, recursion patterns…)? Most beginners waste months going topic by topic, solving random questions without understanding the deeper logic behind them. But top performers, competitive programmers, and FAANG interview-crackers follow a completely different approach — they master DSA patterns, not isolated topics. In this video, we break down: ✅ Topic-Wise DSA What it teaches Where it is useful Its biggest limitations Why students get stuck after 150–200 questions ✅ Pattern-Wise DSA Why patterns form the backbone of all interview problems How patterns help you solve any question from any topic Why patterns drastically reduce the number of questions you need to solve How patterns help in “zero-to-FAANG” thinking 🚀 What You Will Learn The exact difference between topics vs patterns Which method makes you interview-ready fastest How Babua DSA Patterns Course is designed using industry-proven patterns How pattern-first thinking helps you solve unseen problems in seconds How to build a DSA thinking framework instead of just memorizing solutions 🧠 Perfect For: Students preparing for placements FAANG aspirants Beginners confused about where to start Anyone stuck in the "I solved 300 questions but still can’t solve new ones" loop If you're serious about DSA, this video will completely change how you learn, practise, and think. Topic-wise teaches you the tools. Pattern-wise teaches you how to use them to build anything. Hashtags: #DSAPatterns #TopicWiseDSA #PatternWiseDSA #DSAforPlacements #CodingInterviewPrep #DSATutorial #DSAInHindi #BabuaDSAPatterns #CTOBhaiya #DSAin90Days #DataStructuresAndAlgorithms #PlacementPreparation #FAANGPreparation #LeetCodePractice #CodingInterviewStrategy #LearnDSA #DSARoadmap2025 #CrackCodingInterviews #ProgrammingForBeginners #SoftwareEngineeringCareer Your Queries Topic Wise DSA Pattern Wise DSA DSA Patterns DSA for placements Babua DSA Patterns CTO Bhaiya DSA in 90 Days DSA Roadmap 2025 Coding Interview Prep Data Structures and Algorithms FAANG interview prep LeetCode patterns Learn DSA fast DSA for beginners coding interview strategy DSA vs patterns best way to learn DSA placement preparation programming roadmap software engineering prep CHAPTERS 00:00 Introduction #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: Circular Array Loop Fast and Slow Pointer Hare and Tortoise algorithm LeetCode 457 cycle detection array Babua DSA Patterns CTO Bhaiya DSA in 90 Days two pointer pattern fast slow pointer explanation circular loop detection directional array movement coding interview prep FAANG interview prep DSA course Hindi data structures and algorithms array cycle problem NextGen CTO pointer problems interview questions ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/BxmfR2Exnpc https://www.techtube.co.in/tutorials/stringbuffer-in-java-data-formatting-working-with-large-data 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/YFZai3fPUQI/maxresdefault.jpg StringBuffer in Java | Data Formatting | Working With Large Data In this tutorial, we'll dive into the powerful StringBuffer class, perfect for handling large data efficiently. Join us as we explore its functionalities and discover how it can optimize string operations. Plus, we'll unveil some nifty methods for formatting string outputs, taking your Java skills to the next level. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - StringBuffer code: https://replit.com/@KunalsReplit/LargeStrings - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com #dsa #strings #java https://www.youtube.com/embed/YFZai3fPUQI https://www.techtube.co.in/tutorials/strings-and-stringbuilder-in-java 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/zL1DPZ0Ovlo/maxresdefault.jpg Strings and StringBuilder in Java In this video, we cover one of the most important topics, Strings and StringBuilder in Java. We look into how it works internally, various operations, memory management, and some examples! Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00:00 Introduction 0:00:36 What is String? 0:02:35 String Creation: string literal 0:03:36 Internal Working of String 0:07:29 String Pooling 0:09:43 String Immutability 0:16:17 String Comparison: == 0:20:13 String Creation: new keyword 0:22:02 String Comparison: .equals() 0:28:01 PrintStream Class 0:38:12 toString() Method 0:42:47 Pretty Printing in Java 0:47:05 Format Specifiers 0:48:29 String Concatenation Operator 1:00:42 String Performance 1:09:59 StringBuilder Class 1:12:37 String Methods 1:17:50 Palindrome Program 1:26:20 Outro #strings #placement #dsa #interviews https://www.youtube.com/embed/zL1DPZ0Ovlo https://www.techtube.co.in/tutorials/subarray-sum-equals-k-prefix-sums-leetcode-560-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/fFVZt-6sgyo/maxresdefault.jpg Subarray Sum Equals K - Prefix Sums - Leetcode 560 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/subarray-sum-equals-k 0:00 - Read the problem 2:27 - Drawing Explanation 13:11 - Coding Explanation leetcode 560 #prefix #sum #python https://www.youtube.com/embed/fFVZt-6sgyo https://www.techtube.co.in/tutorials/subsets-backtracking-leetcode-78 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/REOH22Xwdkk/maxresdefault.jpg Subsets - Backtracking - Leetcode 78 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/subsets 0:00 - Read the problem 1:15 - Drawing explanation 5:30 - Coding explanation leetcode 78 This question was identified as an Apple interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #subset #permutation #python https://www.youtube.com/embed/REOH22Xwdkk https://www.techtube.co.in/tutorials/subsets-ii-backtracking-leetcode-90-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Vn2v6ajA7U0/maxresdefault.jpg Subsets II - Backtracking - Leetcode 90 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/subsets-ii 0:00 - Read the problem 3:02 - Naive Explanation 4:45 - Correct Explanation 10:00 - Coding Explanation leetcode 90 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/Vn2v6ajA7U0 https://www.techtube.co.in/tutorials/subtree-of-another-tree-leetcode-572-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/E36O5SWp-LE/maxresdefault.jpg Subtree of Another Tree - Leetcode 572 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ✔️ SPREADSHEET BLIND-75: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/subtree-of-a-binary-tree 0:00 - Read the problem 1:40 - Drawing Explanation 6:35 - Edge Cases 8:29 - Coding Explanation leetcode 572 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/E36O5SWp-LE https://www.techtube.co.in/tutorials/sum-of-all-subsets-xor-total-leetcode-1863-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/LI7YR-bwNYY/maxresdefault.jpg Sum of All Subsets XOR Total - Leetcode 1863 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/sum-of-all-subset-xor-totals 0:00 - Read the problem 0:30 - Drawing Explanation 1 4:45 - Coding Explanation 1 6:55 - Drawing Explanation 2 17:10 - Coding Explanation 2 leetcode 1863 #neetcode #leetcode #python https://www.youtube.com/embed/LI7YR-bwNYY https://www.techtube.co.in/tutorials/sum-of-two-integers-leetcode-371-java 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/gVUrDV4tZfY/maxresdefault.jpg Sum of Two Integers - Leetcode 371 - Java 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ✔️ SPREADSHEET BLIND-75: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/sum-of-two-integers 0:00 - Read the problem 1:40 - Drawing Explanation 9:47 - Coding Explanation leetcode 371 This question was identified as a microsoft interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #microsoft #interview #java Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/gVUrDV4tZfY https://www.techtube.co.in/tutorials/surrounded-regions-graph-leetcode-130-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/9z2BunfoZ5Y/maxresdefault.jpg Surrounded Regions - Graph - Leetcode 130 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Code: https://github.com/neetcode-gh/leetcode/blob/main/130-Surrounded-Regions.py ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/surrounded-regions 0:00 - Read the problem 3:40 - Drawing Explanation 9:23 - Coding Explanation leetcode 130 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #graph #dfs #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/9z2BunfoZ5Y https://www.techtube.co.in/tutorials/swim-in-rising-water-dijkstras-algorithm-leetcode-778-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/amvrKlMLuGY/maxresdefault.jpg Swim in Rising Water - Dijkstra's Algorithm - Leetcode 778 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/swim-in-rising-water 0:00 - Read the problem 3:49 - Drawing Explanation 11:35 - Coding Explanation leetcode 778 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #djikstra #algorithms #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/amvrKlMLuGY https://www.techtube.co.in/tutorials/switch-statements-nested-case-in-java 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/mA23x39DjbI/maxresdefault.jpg Switch Statements + Nested Case in Java In this video, we cover switch statements. We go over the old and the newer syntax, nested switch cases, break statements with examples. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com ========================================= Timestamps: 0:00 Introduction ‌‍‍‍‌‌‍‍ ‌‍‍‌‌‌‌‍ ‌‍‍‌‍‍‌‍ ‌‍‍‌‍‌‍‌ ‌‍‍‌‍‍‍‌ ‌‌‍‍‌‌‌‌ ‌‌‍‍‍‌‌‌ 0:57 Example 2:40 "==" vs ".equals" 6:49 Switch Statements 6:56 Syntax for "Switch Statements" 8:08 Some Notes for "Switch Statements" 9:00 Program 1 : Describe Fruit 13:38 Enhanced 'Switch' 15:18 Program 2 : Display Day Name b/w 1 & 7 17:47 Program 3 : Weekdays and Weekends 19:37 Nested Switch Case 25:02 Outro #switch #placement #dsa #interviews https://www.youtube.com/embed/mA23x39DjbI https://www.techtube.co.in/tutorials/system-design-explained-apis-databases-caching-cdns-load-balancing-production-infra 2026-08-29 weekly 0.7 https://i.ytimg.com/vi/oYxTTirKY8M/maxresdefault.jpg System Design Explained: APIs, Databases, Caching, CDNs, Load Balancing & Production Infra Become a senior software engineer with a job guarantee: https://go.hayksimonyan.com/168-sd-course Master the exact system design and architectural skills required to break out of the mid-level and accelerate your career to a high-paying senior engineer role. Timestamps: 0:00:00 Introduction 0:02:13 Single Server Setup 0:06:20 Databases: SQL, NoSQL, Graph 0:12:40 Vertical vs Horizontal Scaling 0:16:50 Load Balancing 0:23:18 Health Checks 0:26:10 Single Point of Failure (SPOF) 0:29:50 API Design 0:46:06 API Protocols 0:57:59 Transport Layer: TCP, UDP 1:03:11 RESTful APIs 1:17:53 GraphQL 1:23:41 Authentication 1:44:40 Authorization 1:55:51 Security 2:03:30 What's next https://www.youtube.com/embed/oYxTTirKY8M https://www.techtube.co.in/tutorials/system-design-one-shot-full-course 2026-08-23 weekly 0.7 https://i.ytimg.com/vi/Vnm-ycSfJx4/maxresdefault.jpg System Design One Shot Full Course This 5-hour comprehensive course covers everything from foundational concepts to advanced distributed systems. Whether you are a beginner or preparing for high-stakes tech interviews, this session provides the architectural mindset needed to build scalable applications that handle millions of users. Course Modules: Foundations: System Design mindset, Functional vs. Non-Functional Requirements, and Scalability (Vertical vs. Horizontal). Networking & APIs: Deep dive into DNS, REST APIs, GraphQL, gRPC, and WebSockets. Data & Storage: SQL vs. NoSQL, Replication, Partitioning (Sharding), and Caching strategies. Distributed Systems: CAP Theorem, Fault Tolerance, and Observability. Advanced Topics: Message Queues, Load Balancing algorithms, and real-world Monitoring. Final Case Study: A full system design walkthrough of a video streaming application. Designed for: ✅ Developers leveling up their backend architecture skills. ✅ Engineers preparing for interviews at FAANG and top product companies. ✅ Students curious about how large-scale platforms like YouTube and Netflix work internally. 🔗 Full System Design Notes: https://docs.telusko.com/docs/system-design/getting-started Check out our courses: Agentic AI Engineering with Python : https://go.telusko.com/agentic-ai-python Coupon: TELUSKO10 (10% Discount) Master Java Spring Development : https://go.telusko.com/learn-master Coupon: TELUSKO10 (10% Discount) For More Queries WhatsApp or Call on : +919008963671 website : https://telusko.com/ Udemy Courses: Java Spring:- https://go.telusko.com/Udemyjavaspring Java:- https://go.telusko.com/udemyteluskojava Spring: https://go.telusko.com/udemyteluskospring Java For Programmers:- https://go.telusko.com/javaProgrammers Python : https://go.telusko.com/udemyteluskopython Git : https://go.telusko.com/udemyteluskogit Docker : https://go.telusko.com/udemyteluskodocker Instagram : https://www.instagram.com/navinreddyofficial/ Linkedin : https://in.linkedin.com/in/navinreddy20 WhatsApp : https://go.telusko.com/whatsapp Discord : https://discord.gg/D8hWe9BqfF 00:00:00 Introduction 00:01:32 Index 00:03:24 Hello System Design 00:05:33 Designing - Alien Bank 00:19:34 Components of System Design 00:35:22 Types of Applications 00:37:03 Data Intensive Application 00:43:03 Compute Intensive Application 00:48:18 Types of Requirement 00:48:31 Functional Requirement 00:50:13 Non-Functional Requirement 00:56:17 Domain Name Service (DNS) 01:00:45 DNS System Architecture 01:08:25 Application Programming Interface (API) 01:13:25 Types of APIs 01:21:04 RESTful Request 01:37:28 RESTful Response 01:47:25 Database 01:49:47 Relational Database - SQL 01:52:23 DB Constraints 02:00:20 DB Joins 02:08:34 Non-Relational Database - NoSQL 02:17:35 Types of NoSQL Databases 02:27:31 Cache 02:38:07 Cache Strategies 02:47:10 Cache Eviction Policies 02:53:14 Load Balancer 02:57:13 Load Balancing Algorithms 03:15:18 Load Balancer Health Checks 03:20:25 Distributed Databases 03:23:25 Replication 03:24:39 Replication Algorithms 03:44:26 Partition 03:46:48 Partition Strategies 03:57:20 CAP Theorem 04:03:40 Message Queue 04:17:29 Pub-Sub Model 04:27:32 Fault/Error 04:34:39 Monitoring and Observability 04:36:59 API Handling Monitoring 04:41:38 Machine Monitoring 04:42:50 System Design of Streaming Application 05:05:25 Thank You https://www.youtube.com/embed/Vnm-ycSfJx4 https://www.techtube.co.in/tutorials/talent-is-everywhere-exposure-is-not-my-tier-3-college-visit 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/i8Td6or06G4/maxresdefault.jpg Talent Is Everywhere, Exposure Is Not - My Tier-3 College Visit!!! Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Over the last 6 days, I was away delivering in-person lectures at a Tier-3 college. It was an intense, eye-opening, and deeply humbling experience—interacting with students, understanding their challenges, their hunger to learn, and the gaps they’re trying to bridge. That’s the reason videos couldn’t be posted for a few days. Sometimes, stepping out of the camera and into real classrooms gives you clarity that no analytics ever can. What I learned from this visit: Talent is everywhere, exposure is not Students don’t lack effort—they lack direction and access Consistent guidance can genuinely change someone’s trajectory These learnings are exactly why this course exists. 📌 Good news: 👉 Course videos will resume from tomorrow 👉 We’re back to consistency, discipline, and daily learning Thank you for your patience and for being part of this journey. Let’s keep building, learning, and growing—together 🚀 Drop a comment if you’re from a Tier-2 or Tier-3 college—I’d love to hear your story. Hashtags: #CTOBhaiya #Tier3College #CollegeLifeIndia #EngineeringStudents #ComputerScience #CSJourney #LearningFromGround #EducationIndia #IndianEducation #CodingJourney #SoftwareEngineering #TechEducation #StudentLife #CareerInTech #ConsistencyMatters #DailyLearning #OnlineCourse #CSStudents #FutureEngineers #LearningNeverStops Your Queries: CTO Bhaiya tier 3 college engineering college india computer science students coding course india software engineering india tech education india college lectures teaching in tier 3 colleges indian education system cs career india learning from students education vlog india consistency in learning coding journey india daily coding videos computer science course career guidance for engineers programming for beginners CHAPTERS 00:00 - Introduction & Recap 00:30 - Where are you Bhaiya - Theory 02:14 - Result of this tour - Theory 04:40 - Confusion About Membership Plan - Theory 07:55 - DSA Pattern videos will be available from tomorrow - Theory 08:35 - Conclusion #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/i8Td6or06G4 https://www.techtube.co.in/tutorials/target-sum-leetcode-494-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/dwMOrl85Xes/maxresdefault.jpg Target Sum - Leetcode 494 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/target-sum 0:00 - Read the problem 0:30 - Drawing Explanation 4:23 - Coding Recursive 8:35 - Drawing Explanation 15:07 - Coding Bottom Up leetcode 494 #neetcode #leetcode #python https://www.youtube.com/embed/dwMOrl85Xes https://www.techtube.co.in/tutorials/task-scheduler-leetcode-621-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/s8p8ukTyA2I/maxresdefault.jpg Task Scheduler - Leetcode 621 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/task-scheduling 0:00 - Read the problem 4:05 - Intuition 6:52 - Explaining Solution 11:45 - Coding Solution leetcode 621 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #task #scheduler #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/s8p8ukTyA2I https://www.techtube.co.in/tutorials/the-dsa-revolution-has-started-and-they-are-not-happy-babuadsapatterns 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/lkbQGa2tEYQ/maxresdefault.jpg The DSA Revolution has started - And "THEY" are not HAPPY #babuadsapatterns Sheet Link: https://app.nextgen-cto.in/login Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Welcome to the Babua DSA Patterns Course 2025 — the movement that’s shaking up the entire DSA space! 🚀🔥 In this video, I break down the exact notes shown in the PDF: why this course exists, why people are talking, and what’s changing in the DSA world. You’ll understand: ✅ Paid vs Free — Why We Chose the Hard Path We talk about how supporting small creators matters, why free content is still powerful, and what “premium without fees” actually means — GitHub repo access, comments support, and complete transparency. ✅ 1 Lakh Challenge — And Why It Doesn’t Work for Learning We analyze why “random question challenges” don’t build strong fundamentals and why they fail students. ✅ DSA is STILL Unsolved Everyone thinks DSA is done… but if that were true, everyone would already be at Google. We explain why thousands still struggle and why structured patterns matter. ✅ DSA Strategies That Actually Work Every student thinks differently — no single method fits all. This video dives deep into learning strategies, patterns, and mental models that actually work. ✅ Java vs C++ — The Reality Java is easy, it has jobs, it scales… but in the end, language doesn’t matter. Skill does. ✅ Premium Notes, WhatsApp Support & Why Copying Hurts We address the problem of people copying patterns blindly, and what the course’s premium notes + sheet + support truly mean. ✅ 10,000 Subscribers & The OG Community More than 40–50 people STILL comment “Done” daily. Consistency wins — and this video celebrates everyone who stayed. ❤️ If you’re preparing for DSA in 2025… this might be the only video you need to watch today. Hashtags: #DSARevolution #BabuaDSAPatterns #CTOBhaiya #DSAPatterns2025 #DSAin90Days #CodingInterviewPrep #DSATutorials #Striver #TakeUForward #LoveBabbar #ApnaCollege #NamasteDev #JavaVsCPP #LearnDSA #CrackCodingInterviews #LeetCodePrep #FAANGPreparation #ScalableSystems #NextGenCTO #CodingForBeginners #ProgrammerLife #DataStructuresAndAlgorithms #RandomQuestionChallenge #PremiumDSA #GitHubLearning #YouTubeDSA #CSInterviews #techeducation #coderarmy Your queries: Babua DSA Patterns Course 2025 DSA Revolution CTO Bhaiya DSA in 90 Days DSA Patterns Striver Take U Forward Love Babbar Apna College Namaste Dev LeetCode Coding Interview Prep DSA Course India Java vs CPP Data Structures and Algorithms FAANG Preparation NextGen CTO Coding for Beginners DSA Tutorial Premium Notes DSA GitHub DSA YouTube DSA Random Question Challenge Coder Army CHAPTERS 00:00 Introduction 00:28 Two things 04:44 Paid VS Free Course 07:55 1L challenge 10:21 DSA is still unsolved 12:30 Strategies for DSA 15:00 Babus is Premium without fees 21:20 Java VS Cpp 23:35 Thank You All 28:30 Conclusion ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/lkbQGa2tEYQ https://www.techtube.co.in/tutorials/the-only-dsa-sheet-youll-ever-need-in-2025-30-patterns-problems-explained-dsa 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/4KRw2qdWTKM/maxresdefault.jpg The ONLY DSA Sheet You’ll Ever Need in 2025 ⚡ | 30 Patterns + Problems Explained #dsa Sheet Link: https://app.nextgen-cto.in/login SHEET: https://docs.google.com/spreadsheets/d/1T3vPcwlWdMRMYSf8IxQCKb3gX7rGzDss-ZU-R4XFM14/edit?gid=0#gid=0 Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course Notes: https://github.com/team-codebug/babua-dsa-patterns-course/blob/main/Babua-DSA-Patterns-Questions.svg Welcome to the Babua DSA Patterns Course 2025 🚀 In this video, I’ll walk you through the official course sheet that helps you track your daily learning journey — from Day 1 to Day 90 — covering all major Data Structures and Algorithms patterns like Two Pointers, Sliding Window, Binary Search, Dynamic Programming, Greedy Programming, Graphs, and more! You’ll learn how to: ✅ Access daily video links, notes, and practice problems ✅ Mark each day’s topic as completed ✅ Stay consistent and track your DSA progress easily ✅ Use this sheet alongside my YouTube videos for structured learning Whether you’re preparing for FAANG interviews or college placements, this sheet will be your ultimate 90-day DSA roadmap 💪 Hashtags: #BabuaDSAPatterns #DSAin90Days #CTOBhaiya #AnujKumar #DSAPatternsCourse #DSAwithAnuj #CodeWithCTOBhaiya #DSARoadmap2025 #CodingInterviewPreparation #BabuaCourse2025 #DataStructuresAndAlgorithms #DSAinJava #DSAinPython #DSAinCPlusPlus #DSAinJavaScript #DSAProblems #PrefixSumProblems #TwoPointerPattern #SlidingWindowTechnique #BinarySearchPattern #DynamicProgramming #GreedyProgramming #GraphAlgorithms #InterviewPatterns #Striver #TakeUForward #ApnaCollege #LoveBabbar #NamasteDev #NishantChahar #CodeWithHarry #TechCourse2025 #CodingJourney #DSALearning #LearnDSAFast #PlacementPreparation #FAANGInterviewPrep #CodingBootcamp #CrashCourseDSA #90DaysChallenge #ConsistencyIsKey #CodeEveryday #RoadToFAANG #TechSkillsGrowth Your Queries: Babua DSA Patterns DSA in 90 Days CTO Bhaiya Anuj Kumar DSA Patterns Course DSA Roadmap 2025 Coding Interview Preparation FAANG Interview Prep Striver Love Babbar Apna College Take U Forward Data Structures and Algorithms DSA Java Python C++ JavaScript Prefix Sum Problems Dynamic Programming Sliding Window Two Pointer Pattern Graph Algorithms 90 Days DSA Challenge CHAPTERS 00:00 Introduction #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan Your Queries: DSA Patterns 2025 DSA in 90 Days Coding Interview Preparation FAANG Preparation LeetCode Patterns Data Structures and Algorithms Course DSA by IITian CTO Bhaiya DSA DSA Roadmap 2025 Crack FAANG Interviews Coding Interview Bootcamp Learn DSA Smartly DSA Patterns Course DSA Challenge 2025 Coding Interview Tips Problem Solving Patterns Algorithm Mastery Java DSA Course Python DSA DSA Playlist DSA Revision Think in Patterns ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/4KRw2qdWTKM https://www.techtube.co.in/tutorials/the-sad-reality-of-dsa-in-20252026-my-honest-opinion 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/O_XbuLMzIuE/maxresdefault.jpg 😔 The SAD Reality of DSA In 2025/2026!!! My Honest Opinion Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course In this video, I share my raw, honest opinion on how to learn DSA in 2025/2026, based on 14+ years of studying DSA and 4+ years of teaching experience. After trying competitive programming, building real-world products, cracking multiple product companies, and still feeling incomplete in DSA — one thing finally worked consistently: 👉 DSA Patterns. This video explains why patterns work, why most courses fail, and how YOU should actually watch DSA videos to improve problem-solving. 🔹 What you’ll learn in this video: Why DSA Patterns just work (and why brute memorization fails) Why most DSA courses are not pattern-oriented Why investing in the instructor matters more than just buying a course How my Patterns-wise DSA course is structured (topic-wise + pattern-wise) How to watch DSA videos correctly (self-attempt → intuition → coding → revision) Why guidance, doubt-solving, and community support matter more than certificates This is not a marketing pitch — it’s an opinion formed after years of struggle, failure, and real learning. If my teaching style helps you — learn with me. If not — choose someone else. But don’t delay your DSA journey. The entire Patterns-wise DSA guidance is free, including onboarding videos, topic clarity, and direct guidance through the community 💬 Comment “Agree” if this resonates with your DSA journey. CHAPTERS 00:00 Introduction 01:48 1. DSA Patterns Just Works 12:13 2. Best DSA Course in the Market 20:34 3. Invest in Course - but also invest in instructor 25:32 4. Videos kaise dekhein? 31:40 Conclusion #DSAPatterns #LearnDSA #DSA2025 #DSA2026 #CodingInterviews #FAANGPreparation #PlacementPreparation #DSAForBeginners #DSAForPlacements #PatternBasedDSA #ProblemSolving #DataStructures #Algorithms #CompetitiveProgramming #InterviewPreparation #CodingJourney #SoftwareEngineer #EngineeringLife #TechCareers #CrackInterviews #CodingMotivation #CTOBhaiya #BabuaDSAPatterns #DSACourse #CodingLife #IndianDevelopers #IndiaPlacements #YouTubeCoding #learntocode Your Queries: DSA patterns learn DSA DSA 2025 DSA 2026 coding interviews FAANG preparation placement preparation DSA for beginners DSA for placements pattern based DSA data structures and algorithms problem solving competitive programming interview preparation coding journey software engineer roadmap Babua DSA Patterns CTO Bhaiya DSA best DSA course how to learn DSA DSA strategy ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/O_XbuLMzIuE https://www.techtube.co.in/tutorials/the-show-begins-now 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/L0f0uT8kTFI/maxresdefault.jpg 🔥 The Show Begins NOW!!! SHEET LINK: https://app.nextgen-cto.in/login JOIN MY WHATSAPP COMMUNITY FOR UPDATES: https://whatsapp.com/channel/0029VbDKc062ZjCpFStMa90a 🚀 NextGen CTO Platform is LIVE! Agar aapko CTO Bhaiya ka content useful laga hai aur meri videos ne aapki learning mein thodi bhi help ki hai, toh bas 2 chhote steps mere liye kar do ❤️ Step 1: Open 👉 https://app.nextgen-cto.in/login Step 2: Click “Continue with Google” Bas. 😄 This will help me understand how many of you are genuinely interested in what we are building with NextGen CTO. Platform abhi launch hua hai, aur aage bahut saare useful features, courses, engineering resources aur experiments aane wale hain. 🚀 Thank you for supporting CTO Bhaiya & NextGen CTO ❤️ #CTOBhaiya #NextGenCTO #SoftwareEngineering #Coding #WebDevelopment #engineeringstudents #CTOBhaiya #NextGenCTO #SoftwareEngineering #SoftwareEngineer #Coding #Programming #WebDevelopment #LearnCoding #CodingForBeginners #EngineeringStudents #ComputerScience #CSEStudents #TechCareer #DeveloperCommunity #SoftwareDeveloper #CodingIndia #IndianDevelopers #TechEducation #ProgrammingForBeginners #CareerInTech #LearnToCode #DeveloperLife #Tier3College #Tier2College #EngineeringCareer #TechStudents #CodingCommunity #ComputerScienceStudents #FutureEngineers #NextGenDevelopers Your Queries: CTO Bhaiya NextGen CTO NextGen CTO platform CTO Bhaiya platform software engineering software engineer coding programming web development learn coding coding for beginners engineering students computer science students CSE students tech career software developer developer community coding India Indian developers tier 2 college tier 3 college engineering career tech education learn to code coding community developer life programming for beginners =========================== ➡️ Connect with me: LinkedIn : https://www.linkedin.com/in/anuj-kumar-9a188968/ Instagram : https://www.instagram.com/mr.anuj.brandy/ Discord : https://discord.com/invite/bbJXxFcauK =========================== https://www.youtube.com/embed/L0f0uT8kTFI https://www.techtube.co.in/tutorials/tic-tac-toe-java-game-in-under-15-minutes 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/jlLNXmi4Nmw/maxresdefault.jpg Tic Tac Toe Java Game in Under 15 Minutes Learn how to make a TicTacToe game in Java in under 15 minutes in this complete code + theory tutorial. 👉 Resources - Code (fork it to see the solution): https://replit.com/@KunalsReplit/TicTacToe - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! ➡️ Connect with me: http://kunalkushwaha.com #game #java https://www.youtube.com/embed/jlLNXmi4Nmw https://www.techtube.co.in/tutorials/time-and-space-complexity-complete-tutorial-what-is-big-o 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/mV3wrLBbuuE/maxresdefault.jpg Time and Space Complexity COMPLETE Tutorial - What is Big O? This tutorial will help you go from beginner to advanced with “Time and Space Complexity Analysis”. - We cover in-depth explanations of Big-O, Big-Omega, Theta and other notations - Types of recurrence relations (Linear, Divide-and-Conquer) - How to solve any relation easily - Time and space complexity of recursive programs - The maths along with explaining it in a simple language - Comparisons of various complexities along with graphs - NP-Completeness introduction - and much more! NOTE: If you get any root in the recurrence relation equation, just replace N as 2^k. This will now be converted to divide and conquer relation. Then solve normally using Akra-Bazzi formula and in the end substitute for N. Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: https://www.techwithkunal.com ========================================= Timestamps: 00:00:00 Introduction 00:03:45 Example 00:06:27 Time Complexity 00:17:18 Comparing Complexities 00:23:18 Procedure for Analysing Complexity 00:37:50 Big-Oh Notation 00:44:38 Big-Omega Notation 00:46:28 Big-Theta Notation 00:49:20 Little-Oh Notation 00:53:03 Little-Omega Notation 00:55:29 Space Complexity 00:58:22 Question 01:04:24 Complexity Analysis : Sorting Algorithms 01:05:57 Complexity Analysis : Recursive Programs 01:13:55 Types of Recurrence Relations 01:16:49 Divide-and-Conquer Recurrence Relation 01:25:55 Akra-Bazzi Theorem 01:44:11 Linear Recurrence Relation 01:46:46 Solving Homogenous Linear Recurrence Relation 01:57:43 Q : Find nth Fibonacci Number using Golden ratio 02:03:15 Q : Solve Recurrence Relation with Repeated Roots 02:08:00 Non-Homogeneous Linear Recurrence Relation 02:09:10 Solving Non-Homogenous Linear Recurrence Relation 02:16:28 How to guess a Particular Solution? 02:20:34 Example 02:24:54 NP-Complete Problems 02:27:20 Outro #complexity #placement #dsa #interviews https://www.youtube.com/embed/mV3wrLBbuuE https://www.techtube.co.in/tutorials/time-and-space-complexity-strivers-a2z-dsa-course 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/FPu9Uld7W-E/maxresdefault.jpg Time and Space Complexity - Strivers A2Z DSA Course Check out TUF+:https://takeuforward.org/plus?source=youtube Find DSA, LLD, OOPs, Core Subjects, 1000+ Premium Questions company wise, Aptitude, SQL, AI doubt support and many other features that will help you to stay focussed inside one platform under one affordable subscription. Have a hassle free one stop solution for up-skilling and preparing. Also our other social’s: https://linktr.ee/takeUforward Check out takeUforward website for the sheet and other free resources: takeuforward.org Join our Discord Channel - https://discord.gg/GgyQAGEdbG https://www.youtube.com/embed/FPu9Uld7W-E https://www.techtube.co.in/tutorials/time-based-key-value-store-leetcode-981-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/fu2cD_6E8Hw/maxresdefault.jpg Time Based Key-Value Store - Leetcode 981 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/time-based-key-value-store 0:00 - Read the problem 0:35 - Drawing Explanation 10:30 - Coding Explanation leetcode 981 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/fu2cD_6E8Hw https://www.techtube.co.in/tutorials/top-k-frequent-elements-bucket-sort-leetcode-347-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/YPTqKIgVk-k/maxresdefault.jpg Top K Frequent Elements - Bucket Sort - Leetcode 347 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/top-k-elements-in-list 0:00 - Read the problem 2:58 - Drawing Explanation 9:42 - Coding Explanation leetcode 347 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/YPTqKIgVk-k https://www.techtube.co.in/tutorials/tower-of-hanoi-problem-made-easy 2026-08-25 weekly 0.7 https://i.ytimg.com/vi/q6RicK1FCUs/hqdefault.jpg Tower of Hanoi Problem - Made Easy This video shows how to device an Algorithm for Tower of Hanoi Problem and also Trace the Algorithm for 3 Discs Problem. https://www.youtube.com/embed/q6RicK1FCUs https://www.techtube.co.in/tutorials/tower-of-hanoi-recursion 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/l45md3RYX7c/maxresdefault.jpg Tower of Hanoi | Recursion The tower of Hanoi is a famous puzzle where we have three rods and N disks. The objective of the puzzle is to move the entire stack to another rod. You are given the number of discs N. Initially, these discs are in the rod 1. You need to print all the steps of discs movement so that all the discs reach the 3rd rod. Also, you need to find the total moves. Problem Description: https://practice.geeksforgeeks.org/problems/tower-of-hanoi/0 The Notes that I taught in the video and the Working Code (if any) will be available on my Patreon page under the "Notes, Code And Support" tier. Link: https://www.patreon.com/adityaVerma Video Pdf Notes: https://www.patreon.com/posts/38704739 . ------------------------------------------------------------------------------------------ Here are some of the gears that I use almost everyday: 🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1 👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6 💻 : My gaming laptop: https://amzn.to/3yjcn23 📱 : My Ipad: https://amzn.to/39yEMGS ✏️ : My Apple Pencil: https://amzn.to/3kMnKYf 🎧 : My Headphones: https://amzn.to/3kMOzM7 💺 : My Chair: https://amzn.to/385weqR 🛋 : My Table: https://amzn.to/3kMohtd ⏰ : My Clock: https://amzn.to/3slFUV3 🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯ PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work. https://www.youtube.com/embed/l45md3RYX7c https://www.techtube.co.in/tutorials/transpose-matrix-leetcode-867-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/DzMT3bDgVn0/maxresdefault.jpg Transpose Matrix - Leetcode 867 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/transpose-matrix 0:00 - Read the problem 0:30 - Drawing Explanation 3:57 - Coding Explanation leetcode 867 #neetcode #leetcode #python https://www.youtube.com/embed/DzMT3bDgVn0 https://www.techtube.co.in/tutorials/trapping-rain-water-google-interview-question-leetcode-42 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/ZI2z5pq0TqA/maxresdefault.jpg Trapping Rain Water - Google Interview Question - Leetcode 42 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/trapping-rain-water 0:00 - Read the problem 5:40 - O(n) Memory Solution 11:00 - O(1) Memory Solution 20:05 - Coding Explanation leetcode 42 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #pointer #array #python https://www.youtube.com/embed/ZI2z5pq0TqA https://www.techtube.co.in/tutorials/two-sum-ii-amazon-coding-interview-question-leetcode-167-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/cQ1Oz4ckceM/maxresdefault.jpg TWO SUM II - Amazon Coding Interview Question - Leetcode 167 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Solve it yourself: https://neetcode.io/problems/two-integer-sum-ii 0:00 - Intuition / Brute force 3:55 - Two pointer / optimal 6:39 - Coding two pointer #Coding #Programming #CodingInterview Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/cQ1Oz4ckceM https://www.techtube.co.in/tutorials/two-sum-iv-google-amazon-facebook-interview-question 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/oB1EIXIDS8s/maxresdefault.jpg Two Sum IV - Google, Amazon, Facebook Interview Question In this video, we'll tackle two Binary Tree questions from popular tech interviews at companies like Amazon, Google, and Facebook, helping you sharpen your problem-solving skills! Take part in the learning in public initiative! Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/AdvanceTreeQuestions - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org #dsa #placement #leetcode https://www.youtube.com/embed/oB1EIXIDS8s https://www.techtube.co.in/tutorials/two-sum-leetcode-1-hashmap-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/KLlXCFG5TnA/maxresdefault.jpg Two Sum - Leetcode 1 - HashMap - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem link: https://neetcode.io/problems/two-integer-sum 0:00 - Brute Force (Conceptual) 1:50 - One Pass (Conceptual) 6:54 - Coding one pass solution leetcode 1 #python #hashmap #CodingInterview For sponsorship inquiries please reach out to mail@neetcode.io https://www.youtube.com/embed/KLlXCFG5TnA https://www.techtube.co.in/tutorials/ultimate-1-year-roadmap-for-202627-placements-by-ex-cto-adobe-intuit-roadmap 2026-08-30 weekly 0.7 https://i.ytimg.com/vi/Q4sJLFnjLBc/maxresdefault.jpg Ultimate 1-Year Roadmap for 2026–27 Placements — By Ex-CTO, Adobe & Intuit #roadmap Telegram Channel : https://t.me/ctobhaiya_tg Instagram: https://www.instagram.com/ctobhaiya Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Github: https://github.com/team-codebug/babua-dsa-patterns-course 📣 Babua 1-Year Placement Blueprint for 2026–27 | The Ultimate Roadmap by Ex-CTO, Adobe & Intuit Are you a 2nd or 3rd year college student feeling lost in DSA, AI/ML, projects, internships, LinkedIn, and placements? Confusion over what to study, what to build, what to post, and how to stand out ends today. In this video, I share the exact 1-year roadmap I personally give to my students— A roadmap that combines DSA + AI/ML + 10 Projects + Portfolio + LinkedIn Branding + Interview Prep into a simple, actionable plan ANY college student can follow. This is the Babua Blueprint for cracking placements in 2026–2027—designed by someone who has worked at Adobe, Intuit, and served as a CTO building real-world products. If you follow this roadmap for 12 months → 🔥 Your DSA gets strong 🔥 You master AI/ML fundamentals 🔥 You build 6–10 impressive projects 🔥 Your resume becomes interview-proof 🔥 Your LinkedIn grows 🔥 Your confidence skyrockets 🔥 You stand out among thousands of applicants 🚀 What You Will Learn in This Video ✔ The 1-year action plan (month-by-month guidance) ✔ How to do DSA the right way (patterns-based approach) ✔ How to learn AI/ML from scratch for placements ✔ How to build 10 weekend projects using AI tools ✔ Portfolio website blueprint (what to add & what not to add) ✔ How to post on LinkedIn to grow your personal brand ✔ How to prepare smartly for interviews in 2026–27 ✔ The “Product Mindset” secret that makes you different ✔ How to avoid the biggest mistakes students make 🎯 Who Should Watch This? 2nd Year Students 3rd Year Students Final Year Students preparing for 2026–27 Anyone who feels stuck, confused, or stressed about placements Anyone who wants FAANG/startup roles with high salaries 💡 Why This Roadmap Works This is not theory. This is built from: 10+ years of experience in the industry Real hiring experience Training thousands of students Understanding what companies ACTUALLY look for in 2026–27 ⭐ Bonus If you want the PDF Roadmap, LinkedIn carousel, or a visual poster, comment below: “BABUA ROADMAP PLEASE” CHAPTERS 00:00 Introduction 01:16 Foundations 03:50 Learn AI/ML from scratch 05:08 Projects 08:59 Developer to Product Mindset 13:58 Build a portfolio website 14:30 LinkedIn Posting 16:45 Conclusion Hashtags: #BabuaPlacementRoadmap #PlacementRoadmap2026 #PlacementRoadmap2027 #CTOBhaiya #DSAforPlacements #AIMLRoadmap #FullStackRoadmap #CollegePlacementGuide #EngineeringStudentsIndia #DSA90Days #CodingInterviewPreparation #ProjectsForResume #PortfolioForPlacements #LinkedInBranding #FAANGPreparation #CampusPlacements2026 #CampusPlacements2027 #SoftwareEngineeringRoadmap #TechCareerGuide #StudentRoadmap2026 Your Queries babua placement roadmap placement roadmap 2026 placement roadmap 2027 cto bhaiya dsa roadmap ai ml roadmap coding interview prep college placements guide engineering students india full stack roadmap dsa 90 days course projects for resume portfolio for placements linkedin growth students faang preparation india tech career roadmap software engineering roadmap nextjs projects student roadmap 2026 2027 #DSAPatterns2025 #DSAin90Days #CodingInterviewPreparation #FAANGPreparation #LeetCodePatterns #CTOBhaiya #DSAMastery #DataStructuresAndAlgorithms #CodingInterviewBootcamp #LearnDSA #CodingChallenge #ProblemSolvingPatterns #ZeroToHeroDSA #ThinkInPatterns #90DayDSAChallenge #DSAPlaybook #CrackFAANG #JavaDSA #PythonDSA #CodingJourney #FAANGInterviewPrep #IITianDSACourse #DSACourse2025 #LearnCodeCrack #DSAPlaylist #CrackCodingInterviews #ProgrammingLogic #DSACompleteCourse #DSARevision #DSAStudyPlan ========================== ➡️ Connect with me: Linkedin: https://www.linkedin.com/in/anuj-kumar-a-k-a-cto-bhaiya-on-youtube-9a188968 Instagram: https://www.instagram.com/ctobhaiya Telegram Channel : https://t.me/ctobhaiya_tg ========================== https://www.youtube.com/embed/Q4sJLFnjLBc https://www.techtube.co.in/tutorials/unique-paths-dynamic-programming-leetcode-62 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/IlEsdxuD4lY/maxresdefault.jpg Unique Paths - Dynamic Programming - Leetcode 62 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode Code on Github: https://github.com/neetcode-gh/leetcode/blob/main/62-Unique-Paths.py Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/count-paths 0:00 - Read the problem 0:55- Drawing solution 8:20 - Coding Solution leetcode 62 This question was identified as a Google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #dynamic #programming #python https://www.youtube.com/embed/IlEsdxuD4lY https://www.techtube.co.in/tutorials/unique-paths-ii-leetcode-63-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/d3UOz7zdE4I/maxresdefault.jpg Unique Paths II - Leetcode 63 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Problem Link: https://neetcode.io/problems/unique-paths-ii 0:00 - Read the problem 0:50 - Recursive Explanation 4:25 - Coding Recursive 6:05 - DP Explanation 11:00 - Coding Explanation leetcode 63 #neetcode #leetcode #python https://www.youtube.com/embed/d3UOz7zdE4I https://www.techtube.co.in/tutorials/valid-anagram-leetcode-242-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/9UtInBqnCgA/maxresdefault.jpg Valid Anagram - Leetcode 242 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ✔️ SPREADSHEET BLIND-75: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/is-anagram 0:00 - Read the problem 1:35 - Explain Solution #1 5:00 - Code Solution #1 9:30 - Explain Solution #2 11:30 - Code Solution #2 leetcode 242 This question was identified as an Uber coding interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/9UtInBqnCgA https://www.techtube.co.in/tutorials/valid-palindrome-ii-leetcode-680-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/JrxRYBwG6EI/maxresdefault.jpg Valid Palindrome II - Leetcode 680 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/valid-palindrome-ii 0:00 - Read the problem 0:25 - Drawing Explanation 4:01 - Coding Explanation leetcode 680 #meta #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/JrxRYBwG6EI https://www.techtube.co.in/tutorials/valid-palindrome-leetcode-125-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/jJXJ16kPFWg/maxresdefault.jpg Valid Palindrome - Leetcode 125 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ✔️ SPREADSHEET BLIND-75: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Problem Link: https://neetcode.io/problems/is-palindrome 0:00 - Read the problem 1:40 - Explaining Solution #1 3:45 - Coding Solution #1 5:40 - Explaining Solution #2 9:35 - Coding Solution #2 leetcode 125 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #coding #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/jJXJ16kPFWg https://www.techtube.co.in/tutorials/valid-parentheses-stack-leetcode-20-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/WTzjTskDFMg/maxresdefault.jpg Valid Parentheses - Stack - Leetcode 20 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/validate-parentheses 0:00 - Read the problem 1:25 - Drawing Explanation 7:20 - Coding Explanation leetcode 20 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python https://www.youtube.com/embed/WTzjTskDFMg https://www.techtube.co.in/tutorials/valid-parenthesis-string-leetcode-678-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/QhPdNS143Qg/maxresdefault.jpg Valid Parenthesis String - Leetcode 678 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐦 Twitter: https://twitter.com/neetcode1 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO 📚 STACK PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53lfxD6l5pAGvCD4nPvWKU8Qo Python Code: https://github.com/neetcode-gh/leetcode/blob/main/678-Valid-Parenthesis-String.py Problem Link: https://neetcode.io/problems/valid-parenthesis-string 0:00 - Read the problem 2:40 - Drawing Explanation 11:22 - Coding Explanation leetcode 678 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #facebook #interview #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/QhPdNS143Qg https://www.techtube.co.in/tutorials/valid-sudoku-amazon-interview-question-leetcode-36-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/TjFXEUCMqI8/maxresdefault.jpg Valid Sudoku - Amazon Interview Question - Leetcode 36 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 💡 BINARY SEARCH PLAYLIST: https://www.youtube.com/playlist?list=PLot-Xpze53leNZQd0iINpD-MAhMOMzWvO Problem Link: https://neetcode.io/problems/valid-sudoku 0:00 - Read the problem 4:49 - Drawing Explanation 8:50 - Coding Explanation leetcode 36 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #valid #sudoku #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/TjFXEUCMqI8 https://www.techtube.co.in/tutorials/validate-binary-search-tree-depth-first-search-leetcode-98 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/s6ATEkipzow/maxresdefault.jpg Validate Binary Search Tree - Depth First Search - Leetcode 98 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Problem Link: https://neetcode.io/problems/valid-binary-search-tree 0:00 - Read the problem 1:20 - Drawing solution 6:45 - Coding solution leetcode 98 This question was identified as an amazon interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency/blob/master/Apple%20-%20LeetCode.pdf #bst #python https://www.youtube.com/embed/s6ATEkipzow https://www.techtube.co.in/tutorials/verifying-an-alien-dictionary-leetcode-953-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/OVgPAJIyX6o/maxresdefault.jpg Verifying an Alien Dictionary - Leetcode 953 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/verifying-an-alien-dictionary 0:00 - Read the problem 1:40 - Drawing Explanation 4:46 - Coding Explanation leetcode 953 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #verify #dictionary #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/OVgPAJIyX6o https://www.techtube.co.in/tutorials/vertical-order-traversal-of-a-binary-tree-google-interview-question 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Qdr3ohMSxBo/maxresdefault.jpg Vertical Order Traversal of a Binary Tree - Google Interview Question Learn how to solve the Vertical Order Traversal LeetCode problem frequently asked in Google interviews with this easy-to-understand, step-by-step tutorial. 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Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/AdvanceTreeQuestions - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org #dsa #placement #leetcode https://www.youtube.com/embed/Qdr3ohMSxBo https://www.techtube.co.in/tutorials/walls-and-gates-multi-source-bfs-leetcode-286-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/e69C6xhiSQE/maxresdefault.jpg Walls and Gates - Multi-Source BFS - Leetcode 286 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews Problem Link: https://neetcode.io/problems/islands-and-treasure 0:00 - Read the problem 1:40 - Drawing Explanation 7:00 - Coding Explanation leetcode 286 #bfs #python https://www.youtube.com/embed/e69C6xhiSQE https://www.techtube.co.in/tutorials/word-break-dynamic-programming-leetcode-139-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/Sx9NNgInc3A/maxresdefault.jpg Word Break - Dynamic Programming - Leetcode 139 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/word-break 0:00 - Read the problem 5:05 - Drawing Explanation 12:48 - Coding Explanation leetcode 139 This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #word #break #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/Sx9NNgInc3A https://www.techtube.co.in/tutorials/word-break-ii-leetcode-140-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/QgLKdluDo08/maxresdefault.jpg Word Break II - Leetcode 140 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🧑‍💼 LinkedIn: https://www.linkedin.com/in/navdeep-singh-3aaa14161/ 🐦 Twitter: https://twitter.com/neetcode1 ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf Problem Link: https://neetcode.io/problems/word-break-ii 0:00 - Read the problem 0:39 - Backtracking Explanation 6:02 - Backtracking Coding 8:37 - Memoization Explanation 15:08 - Memoization Coding leetcode 140 #neetcode #leetcode #python https://www.youtube.com/embed/QgLKdluDo08 https://www.techtube.co.in/tutorials/word-ladder-breadth-first-search-leetcode-127-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/h9iTnkgv05E/maxresdefault.jpg Word Ladder - Breadth First Search - Leetcode 127 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode ⭐ BLIND-75 PLAYLIST: https://www.youtube.com/watch?v=KLlXCFG5TnA&list=PLot-Xpze53ldVwtstag2TL4HQhAnC8ATf 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/word-ladder 0:00 - Read the problem 5:24 - Drawing Explanation 11:55 - Coding Explanation leetcode 127 This question was identified as a google coding interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency bfs - breadth first search #word #ladder #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/h9iTnkgv05E https://www.techtube.co.in/tutorials/word-ladder-leetcode-hard-google-phone-screen-interview-question 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/2odLxQWYDi0/maxresdefault.jpg Word Ladder - LeetCode Hard - Google Phone Screen Interview Question Learn how to solve the Word Ladder problem, which is commonly asked in Google phone screen interviews, in this easy-to-understand, step-by-step tutorial. 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Share your learnings on LinkedIn and Twitter with #DSAwithKunal & don't forget to tag us! 👉 Resources - Join Replit: http://join.replit.com/kunal-kushwaha - Lecture code: https://replit.com/@KunalsReplit/AdvanceTreeQuestions - Complete Java DSA playlist: https://www.youtube.com/playlist?list=PL9gnSGHSqcnr_DxHsP7AW9ftq0AtAyYqJ - Code, Assignments, & Notes: https://github.com/kunal-kushwaha/DSA-Bootcamp-Java ➡️ Connect with me: http://kunalkushwaha.com 👨‍💻 Join WeMakeDevs: http://wemakedevs.org #dsa #placement #leetcode https://www.youtube.com/embed/2odLxQWYDi0 https://www.techtube.co.in/tutorials/word-search-backtracking-leetcode-79-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/pfiQ_PS1g8E/maxresdefault.jpg Word Search - Backtracking - Leetcode 79 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Coding Solutions: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ Dynamic Programming Playlist: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 Tree Playlist: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 Linked List Playlist: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/search-for-word 0:00 - Read the problem 1:23 - Drawing Explanation 3:06 - Coding Explanation leetcode 79 This question was identified as an interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #sorted #array #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/pfiQ_PS1g8E https://www.techtube.co.in/tutorials/word-search-ii-backtracking-trie-leetcode-212-python 2026-09-01 weekly 0.7 https://i.ytimg.com/vi/asbcE9mZz_U/maxresdefault.jpg Word Search II - Backtracking Trie - Leetcode 212 - Python 🚀 https://neetcode.io/ - A better way to prepare for Coding Interviews 🐦 Twitter: https://twitter.com/neetcode1 🥷 Discord: https://discord.gg/ddjKRXPqtk 🐮 Support the channel: https://www.patreon.com/NEETcode Twitter: https://twitter.com/neetcode1 Discord: https://discord.gg/ddjKRXPqtk ⭐ BLIND-75 SPREADSHEET: https://docs.google.com/spreadsheets/d/1A2PaQKcdwO_lwxz9bAnxXnIQayCouZP6d-ENrBz_NXc/edit#gid=0 💡 CODING SOLUTIONS: https://www.youtube.com/playlist?list=PLot-Xpze53leF0FeHz2X0aG3zd0mr1AW_ 💡 DYNAMIC PROGRAMMING PLAYLIST: https://www.youtube.com/watch?v=73r3KWiEvyk&list=PLot-Xpze53lcvx_tjrr_m2lgD2NsRHlNO&index=1 🌲 TREE PLAYLIST: https://www.youtube.com/watch?v=OnSn2XEQ4MY&list=PLot-Xpze53ldg4pN6PfzoJY7KsKcxF1jg&index=2 💡 GRAPH PLAYLIST: https://www.youtube.com/watch?v=EgI5nU9etnU&list=PLot-Xpze53ldBT_7QA8NVot219jFNr_GI 💡 BACKTRACKING PLAYLIST: https://www.youtube.com/watch?v=pfiQ_PS1g8E&list=PLot-Xpze53lf5C3HSjCnyFghlW0G1HHXo 💡 LINKED LIST PLAYLIST: https://www.youtube.com/watch?v=G0_I-ZF0S38&list=PLot-Xpze53leU0Ec0VkBhnf4npMRFiNcB&index=2 Problem Link: https://neetcode.io/problems/search-for-word-ii 0:00 - Read the problem 5:06 - Drawing Explanation 12:32 - Coding Explanation leetcode 212 This question was identified as a facebook interview question from here: https://github.com/xizhengszhang/Leetcode_company_frequency #trie #prefix #python Disclosure: Some of the links above may be affiliate links, from which I may earn a small commission. https://www.youtube.com/embed/asbcE9mZz_U