6.24

#include <iostream>

using namespace std;

int quotient(int x, int y) {
    return x/y;
}

int remainder(int x, int y) {
    return x % y;
}

void separateDigits (int num){
    int r{0};
    if (num > 0){
        r = remainder(num, 10);
        separateDigits(quotient(num,10));
        cout << r << "  ";
    } else {
        cout << endl;
    }
}

int main()
{
    separateDigits(4562);
    return 0;
}