[刷题班] LeetCode344. 反转字符串

题目描述

思路：左右指针

方法一：

class Solution {
    public void reverseString(char[] s) {
        int left = 0, right = s.length - 1;
        while (left < right) {
            char temp = s[left];
            s[left] = s[right];
            s[right] = temp;
            left ++;
            right --;
        }
    }
}