C++ Binary Algorithm

#include <iostream>
#include <fstream>
#include <cmath>

using namespace std;

int main() {
    ofstream myFile;
    myFile.open("binary.doc");

    int bits = 1;
    cout << "Enter number of bits as an integer greater than 0: ";
    cin >> bits;

    int maxPow = pow(2,bits);

    for (int i = 0; i < maxPow; i++) {
            int currPow = maxPow;
            while (currPow != 1) {
                (i % currPow < currPow/2) ? myFile << "0" : myFile << "1";
                currPow /= 2;
            }
        myFile << endl;
    }

    cout << "Printed binary numbers 0-" << maxPow-1 << " to binary.doc\n\n";

    myFile.close();
    return 0;
}