Question

write a program to copy content of one file to another file in c++

Answer 1

#include <iostream>

using namespace std;

freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);

string s;

int main()
{
    getline(cin, s);
    cout << s;
    return 0;
}

Example:
input.txt -> Lorem ipsum dolor sit amet
output.txt -> Lorem ipsum dolor sit amet