题目:编写一个函数,其作用是将输出的字符串反转过去。输出字符串以字符数组 s 的模式给出。
不要给另外的数组调配额定的空间,你必须原地批改输出数组、应用 O(1) 的额定空间解决这一问题。

链接: 力扣LeetBook—高级算法—数组—反转字符串.

示例 1:

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

示例 2:

输出:s = ["H","a","n","n","a","h"]
输入:["h","a","n","n","a","H"]

标签:递归、双指针、字符串

解题思路:对称替换即

次要Go代码如下:

func reverseString(s []byte)  {    n := len(s)    mid := n / 2    for i := 0; i < mid; i++ {        s[i], s[n-i-1] = s[n-i-1], s[i]    }}

提交截图