va rog rezolavti limbaj c++

Programul scris in c++
#include <iostream>
using namespace std;
int main()
{
int caini, pisici, gaini;
cin >> caini;
pisici = 2 * caini;
gaini = 2 * pisici;
cout << "In curte sunt " << caini + pisici + gaini << " animale";
return 0;
}