Dev - C++ - Problemas con archivo.

#include <iostream>

#include <cmath>

#include <fstream>

using namespace std;

int main()

{

    ofstream fs( "Leron.txt" );

    int arre2[10];

    int arre1[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };

    int num;

    cout << "Leron\n" << endl;

    fs << "Leron\n";

    cout << "Digite numero a Elevar: ";

    cin >> num;

    for( int i = 0; i < 10; i++ ){

        arre2[i] = pow( arre1[i], num );

        cout << "La potencia de " << i << " es " << arre2[i] << endl;

        fs << "La potencia de " << i << " es " << arre2[i] << "\n";

    }

    fs.close();

    return 0;

}