Python 基礎知識簡單

尋找數組中最小和最大的元素

「尋找數組中最小和最大元素」問題的詳細指南和 Python 實作。

問題陳述

簡單

寫一個函數 find_min_max(arr) ,它接受整數列表 arr 並傳回一個元組 (min_val, max_val) ,其中包含數組中的最小和最大元素。

約束條件
  • 1 <= len(arr) <= 10^5
  • -10^9 <= arr[i] <= 10^9

範例

Example 1
Input
arr = [3, 7, 2, 8, 1]
Output
(1, 8)
Explanation

The smallest element is 1 and the largest is 8.

Example 2
Input
arr = [-5, -2, -8, -1]
Output
(-8, -1)
Explanation

Min is -8, max is -1.

Example 3
Input
arr = [42]
Output
(42, 42)
Explanation

Single element is both the min and max.

Need a Hint?
考慮使用特定於數組的資料結構,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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