If you want to master array problems, “Merge Intervals” is a must-know question! In this blog, we’ll explain the problem,…
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Are you stuck on the “Largest subarray with 0 sum” problem from GeeksforGeeks? Don’t worry! In this blog, we’ll explain…
You’re given an integer array nums of length n.An element is called a majority element II if it appears strictly…
The LeetCode “4Sum” problem asks you to find all unique quadruplets in an integer array nums such that Key details:…
LeetCode #15 “3Sum” asks you to find all unique triplets (i, j, k) in an integer array such that The…
LeetCode “Spiral Matrix” (#54) asks you to return all the elements of an m × n matrix in clock-wise spiral…
If you’re preparing for coding interviews, the “Set Matrix Zeroes” problem is a must-know! In this blog, we’ll explain the…
Learn to solve “Find the City With the Smallest Number of Neighbors at a Threshold Distance” using Floyd Warshall or…
Master Floyd Warshall for APSP and see when a Dijkstra-per-source loop beats it. Clear intuition, Python code, and complexity breakdown.…
Bellman Ford Algorithm made easy: learn how to find shortest paths (and detect negatives) with clear intuition, commented Python code,…