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: