[leetcode] 344. Reverse String 解题报告

题目链接:https://leetcode.com/problems/reverse-string/

Write a function that takes a string as input and returns the string reversed.

Example:
Given s = "hello", return "olleh".

思路: 很简单的一题, 没什么好说的

代码如下:

class Solution {
public:
    string reverseString(string s) {
        int left=0, right=s.length()-1;
        while(left<right)
        {
            swap(s[left], s[right]);
            left++, right--;
        }
        return s;
    }
};