I need my code to be able to store the word in the string s for it to be reversed, but there's something wrong. Please help?

Question

#include <iostream>
#include <string>
using namespace std;

int main() {
string s;
int i = 0;
int j = s.size() - 1;
char temp;

cout << "Enter a word." << endl;
cin >> s ;
while (j>i) {;
temp = s[j];
s[j] = s[i];
s[i] = temp;
++i;
--j;
}
cout << s;
}

Answer 1

What would you do if someone asked you for the length of a string before you knew the actual string?
Pretty much what is happening here.

Answer 2

std::reverse(s) might help as well

Answer 3

Saw the problem and solved it!