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344. reverse string

admin 11月 12, 2020 0

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

Example:
Given s = “hello”, return “olleh”.

class Solution {
public:
    string (string s) {
        string str = s;
        int i = 0;
        int j = str.size() - 1;
        for (; i < j; i++,j--) {
            char c = str[i];
            str[i] = str[j];
            str[j] = c;
        }
        return str;
    }
};