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Sort an Array

Explore how to implement a sorting algorithm to arrange an integer array in ascending order without built-in functions. Learn to achieve optimal time complexity of O(n log n) while using minimal extra space. This lesson helps you understand the constraints and develop an efficient custom sorting solution.

Statement

Given an integer array, nums, sort it in ascending order and return the sorted array.

You must implement the sorting algorithm yourself; do not use any built-in sorting functions. The solution must run in O(nlogn)O(n \log n) ...