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Solution: Remove Duplicates from Sorted Array

Explore how to use the two pointers technique to remove duplicates from a sorted array without extra space. Understand the step-by-step process to modify the array in-place, preserving the order and returning the total count of unique elements efficiently.

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 ...