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Solution: Remove Duplicates from Sorted Array

Explore how to remove duplicates from a sorted array efficiently by applying the two-pointer technique. This lesson helps you understand in-place array modification to retain unique elements while preserving order, optimizing both time and space complexity.

Statement

You are given an integer array nums that is already sorted in non-decreasing order. Your task is to remove the duplicate values in-place so that each element in the array appears only once, while preserving the original relative order of the elements.

After removing the duplicates, let k be the number of unique elements remaining in the array. The first k ...