Binary Tree Problems | Same Tree – LeetCode 100 Explained | Lecture 7

Number of Alternating XOR Partitions 🔥 LeetCode 3811 | Biweekly Contest 174 | Prefix XOR + HashMap

Construct the Minimum Bitwise Array I & II | LeetCode 3314 & 3315 🔥 One Optimal Solution Explained

Lexicographically Smallest String After Deleting Duplicate Characters 🔥 LeetCode 3816 | Optimal

Maximum Side Length of a Square with Sum Less than or Equal to Threshold | LeetCode 1292 🔥

Design Auction System 🔥 LeetCode 3815 | Weekly Contest 485 | Design + Heaps

Maximum Capacity Within Budget 🔥 LeetCode 3814 | Weekly Contest 485 | Greedy + Sorting

Largest Magic Square | LeetCode 1895 | Medium | Prefix Sum + Brute Force | Daily LeetCode

Find the Largest Area of Square Inside Two Rectangles | LeetCode 3047 | Medium | Optimal Approach

How to Build a PERFECT Resume in 2026 🔥 | ATS Friendly Resume for Placements & Jobs

Height of Binary Tree Explained with Example | Lecture 6

Maximum Square Area by Removing Fences From a Field | LeetCode 2975 | Optimal Approach

Binary Tree Traversal | Level Order Traversal (BFS) Explained | Lecture 5

Binary Tree Traversal | Postorder Traversal Explained with Example | Lecture 4

Binary Tree Traversal | Inorder Traversal Explained with Example | Lecture 3

Maximize Area of Square Hole in Grid | LeetCode 2943 | Optimal Approach

Separate Squares II | LeetCode 3454 | Sweep Line + Segment Tree | Geometry Hard

Backtracking Lecture 9 🔥 | Sudoku Solver Explained | Recursion + Backtracking

Separate Squares I | LeetCode 3453 | Binary Search on Answer | Geometry Problem

Maximum Bitwise AND After Increment Operations 🔥 LeetCode 3806 | Weekly Contest 484 | Hard

Minimum Time Visiting All Points | LeetCode 1266 | Chebyshev Distance Trick | Explained

Backtracking Lecture 8 🔥 | Permutations Problem Explained | Recursion Tree + Dry Run

Count Caesar Cipher Pairs 🔥 LeetCode 3805 | Weekly Contest 484 | Hashing + Strings

Maximal Rectangle | LeetCode 85 | Optimal Stack + Histogram Approach | Explained

Binary Tree Traversal | Preorder Traversal Explained with Example | Lecture 2

Backtracking Lecture 7 🔥 | Combination Sum & Combination Sum II Explained | LeetCode

Minimum ASCII Delete Sum for Two Strings | LeetCode 712 | DP Recursion + Memoization

Binary Tree Introduction | Tree Terminology, Root, Parent, Subtree Explained | Lecture 1

Backtracking Lecture 6 🔥 | 2 Backtracking Patterns Explained | For Loop vs No Loop

Smallest Subtree with all the Deepest Nodes | LeetCode 865 | Binary Tree DFS

Minimum Cost to Merge Sorted Lists 🔥 LeetCode 3801 | DP on Subsets | Hard Problem

Max Dot Product of Two Subsequences | LeetCode 1458 | DP Recursion + Memoization + Bottom-up

How to Use My Playlists for Placement-Ready DSA Preparation

Backtracking Lecture 5 🔥 | Combinations Problem Explained | LeetCode + Recursion Tree

Maximum Product of Splitted Binary Tree | LeetCode 1339 | DFS Tree Sum Optimal Solution

Backtracking Lecture 4 🔥 | Subsets II (Handling Duplicates) | Recursion Tree Explained

Maximum Level Sum of a Binary Tree | LeetCode 1161 | BFS Level Order Traversal

Backtracking Lecture 3 🔥 | Subsets in Lexicographical Order | Recursion Tree Explained

Maximum Matrix Sum | LeetCode 1975 | Greedy Sign Flipping

Backtracking Lecture 2 🔥 | Subsets Problem Explained with Recursion Tree | DSA Series

Minimum Cost to Make Two Binary Strings Equal 🔥 LeetCode 3800 | Weekly Contest 483 | Greedy + Math

Find Maximum Value in a Constrained Sequence 🔥 LeetCode 3796 | Biweekly Contest 173 | Greedy

Four Divisors | LeetCode 1390 | Sum of Numbers with Exactly 4 Divisors

Backtracking Lecture 1 🔥 | Recursion Basics for Backtracking | DSA Series in Hindi

Number of Ways to Paint N×3 Grid | LeetCode 1411 | Recurrence Explained

I Cracked MongoDB Interview Using These Dev Resources 🚀 | My Exact Preparation Stack

N-Repeated Element in Size 2N Array 🔥 | LeetCode 961 | Easy

Best DSA Resources for Placements 🔥 | How I Prepared DSA for MongoDB Intern + PPO

Plus One 🔥 | LeetCode 66 | Easy Array Problem

Best Way to Introduce Yourself in Interview | Professional Answer with Structure

Last Day Where You Can Still Cross 🔥 | LeetCode 1970 | Binary Search + BFS

Magic Squares in Grid 🔥 | LeetCode 840 | Complete Explanation

How I Actually Got an Intern + PPO Offer from MongoDB (My Real Prep & Mistakes)

Pyramid Transition Matrix 🔥 | LeetCode 756 | Backtracking + HashMap | Optimal Explanation

Minimum Cost to Acquire Required Items 🔥 LeetCode 3789 | Greedy Cost Optimization | Contest Problem

Maximum Score of a Split 🔥 LeetCode 3788 | Prefix + Suffix Trick | Contest Problem

Smallest All-Ones Multiple 🔥 LeetCode 3790 | Weekly Contest 482 | Math + Modulo Trick

Count Negative Numbers in a Sorted Matrix | LeetCode 1351 🔥 | O(n·m) → O(n log m) → O(n + m)

Don’t Choose Wrong: Java vs C++ vs Python for Beginners

Meeting Rooms III 🔥 | LeetCode 2402 | Simulation with Arrays | No Priority Queue