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LeetCode #27 Remove Element | Two Pointer Technique Explained

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May 16, 2026
2:37

In this video, we solve LeetCode Problem #27 — Remove Element. You’ll learn: Two Pointer technique In-place array operations Optimized O(n) solution Step-by-step dry run Important interview edge cases Problem Statement: Given an integer array nums and an integer val, remove all occurrences of val in-place and return the number of remaining elements. The order of elements may be changed. Example: Input: nums = [3,2,2,3], val = 3 Output: 2, nums = [2,2,,] Input: nums = [0,1,2,2,3,0,4,2], val = 2 Output: 5 Topics Covered: Arrays Two Pointer Approach In-place Modification Interview Problem Solving

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LeetCode #27 Remove Element | Two Pointer Technique Explained | NatokHD