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Published: Jan 3, 2021 License: MIT

README

反转字符串

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"]

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