C++ - Никита - 4

#include <iostream>
#include <cmath>

using namespace std;

double func(double x) {
    return (pow(sin(x),3) - 3 );
}
double RegCikl(double a, double b, double h, double &Proizv) {
    double x, y;
    double Sum = 0;
    for (x = a; x <= b; x += h) {
        y = func(x);
        Sum+=y;
        Proizv*=y;
    }
    return Sum;
}



int main()
{
    double a,b,h, Proizv = 1;
    cin >> a >> b >> h;
    double Sum = RegCikl(a,b,h, Proizv);
    cout << Sum << " " << Proizv;
    return 0;
}