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Solution: Remove Duplicates from Sorted Array

Explore how to remove duplicates from a sorted integer array in-place using the two pointers approach. This lesson teaches you to track unique elements and overwrite duplicates without extra space, preserving the sorted order. You will understand the algorithm's logic and its optimal time and space complexities.

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 ...