DSA 部分簡單

堆排序

“堆排序”問題的詳細指南和 Python 實作。

問題陳述

簡單

寫一個函數 heap_sort(arr),使用堆排序演算法(先建立最大堆)按升序對整數列表 arr 進行排序,並傳回排序後的列表。

約束條件
  • 0 <= len(arr) <= 10^4
  • -10^5 <= arr[i] <= 10^5

範例

Example 1
Input
arr = [12, 11, 13, 5, 6, 7]
Output
[5, 6, 7, 11, 12, 13]
Explanation

A max heap is created, the maximum element is repeatedly swapped with the last element of the heap, and heapify is performed.

Need a Hint?
考慮使用特定於排序的資料結構,例如集合或堆。
Edge Cases to Watch
  • 空輸入結構
  • 單元素輸入
  • 大數值範圍

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