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.
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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 positions of nums should contain these unique elements in sorted order. Any values beyond index k - 1 are irrelevant and can be ignored.
Your goal is to modify the array in-place and return the value k, representing the count of unique elements.
Constraints:
nums.length...