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s0344_reverse_string.md

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编写一个函数,其作用是将输入的字符串反转过来。输入字符串以字符数组 char[] 的形式给出。

不要给另外的数组分配额外的空间,你必须原地修改输入数组、使用 O(1) 的额外空间解决这一问题。

你可以假设数组中的所有字符都是 ASCII 码表中的可打印字符。

 

示例 1:

输入:["h","e","l","l","o"]
输出:["o","l","l","e","h"]

示例 2:

输入:["H","a","n","n","a","h"]
输出:["h","a","n","n","a","H"]
Related Topics
  • 递归
  • 双指针
  • 字符串

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