Any error in this code

Question

#include <iostream>
using namespace std;

class addition {
public:
int add(int x, int y) {
int z;
z=x+y;
cout << z << endl;
return(z);
}
};

int main()
{

addition sum;
sum.add(6,7);
}

Answer 1

I don't think so. But you should check it yourself in Code Playground.

Answer 2

What is your question?
it works perfectly