You’re given an integer array nums of length n.An element is called a majority element II if it appears strictly…
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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,…
Learn how to solve Number of Ways to Arrive at Destination with Dijkstra’s algorithm while counting paths. Clear intuition, commented…
Solve Minimum Multiplications to reach End with a clean BFS, modular math, and commented Python code. Easy steps, dry run,…