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Solution: Sort an Array

Understand how to implement heap sort to sort an integer array in ascending order efficiently. Explore building a max heap, repeated extraction, and in-place sorting with O(n log n) time complexity and minimal space use.

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) time and use the minimum possible extra space.

Constraints:

  • 11 \leq nums.length ...