Reverse String

question:

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

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

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