Reverse String
思路一: 首尾互换
public void reverseString(char[] s) {
int mid = s.length / 2;
int begin = 0;
int end = s.length - 1;
while (begin < mid) {
char t = s[begin];
s[begin++] = s[end];
s[end--] = t;
}
}
标签:char,begin,end,int,mid,344,easy,leetcode
From: https://www.cnblogs.com/iyiluo/p/16804872.html