Leetcode 344. Reverse String
文章作者：Tyan
博客：noahsnail.com | **** | 简书
1. Description
2. Solution
class Solution {
public:
string reverseString(string s) {
int i = 0;
int j = s.length() - 1;
while(i < j) {
swap(s[i++], s[j--]);
}
return s;
}
private:
void swap(char& a, char& b) {
char temp = a;
a = b;
b = temp;
}
};