LeetCode #26 Remove Duplicates from Sorted Array

In this video, we solve LeetCode Problem #26 — Remove Duplicates from Sorted Array. You’ll learn: Two Pointer technique In-place array modification Optimized O(n) solution Step-by-step dry run Interview tricks and edge cases Problem Statement: Given an integer array nums sorted in non-decreasing order, remove the duplicates in-place such that each unique element appears only once. Return the number of unique elements. Example: Input: nums = [1,1,2] Output: 2, nums = [1,2,_] Input: nums = [0,0,1,1,1,2,2,3,3,4] Output: 5 Topics Covered: Arrays Two Pointer Approach In-place Algorithms Interview Problem Solving