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In this video I'll be discussing the solution of Count the Number of Computer Unlocking Permutations. LeetCode Problem Link ...

LeetCode 567 (Permutation in String) is a classic sliding window problem — but the real trick is understanding the invariant, not ...

10 LeetCode Patterns to Solve 80% of Coding Interview Problems How to Start LeetCode from ZERO in 2026 LeetCode was ...

Learn how to generate permutations without consecutive repeats using Python! In this tutorial, we'll walk through the algorithm ...

Questions Which I practice including Array and 2D Array:- 1. Second Largest Number ...

In this video, we solve the LeetCode problem “Remove Duplicates from Sorted Array” using a simple loop and if-condition ...

Leetcode Biweekly Contest 172: https://leetcode.com/contest/biweekly-contest-172/ Q1. Minimum Number of Operations to Have ...