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Solution: Remove Duplicates from Sorted Array

Understand how to remove duplicates from a sorted array using the two pointer approach. This lesson helps you modify the array in-place, keeping only unique elements in sorted order, and optimizing for 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 ...