include iostream using namespace std double composition double double

#include <iostream>

using namespace std;


double composition(double a, double b) {
    return a * b;
}

int composition(int a, int b) {
    return a * b;
}

int main() {

    cout << "composition double a * double b = " << composition(1.5, 2.5) << endl;

    cout << "composition int a * int b = " << composition(4, 2) << endl;

    return 0;
}