Templatre for reding/writing to/from files

#include <iostream>
#include <fstream> // file stream
using namespace std;


int main()
{
    int numar;
    ifstream fin("bac.in"); // input file stream
    //ifstream fin("C://Users/bogda/Desktop/bac.txt"); // input file stream
    ofstream fout("bac.out");
    while (fin >> numar) {
        fout << numar << " ";
    }


    fin.close();
    fout.close();
    return 0;
}