Create C++ program to calculate which of the given three natural numbers contains the biggest amount of digits ‘1’. For the solution, you should create a function, which calculates the result as a return value.

#include <iostream>
using namespace std;
int main() {
    int a, b, c;
    cin >> a >> b >> c;
    if(a == 0){
        if(b == 0){
            if(c == 0){
                cout << 0;
            } else {
                cout << 1;
            }
        } else {
            cout << 2;
        }
    } else {
        cout << 3;
    }
}