344. 反转字符串

题目链接

class Solution {
public:
    void reverseString(vector<char>& s) {
        char temp;
        for (int i = 0, j = s.size() - 1; i < j; i++, j--) {
            temp = s[i];
            s[i] = s[j];
            s[j] = temp;
        }
    }
};