Răspuns:
#include <iostream>
using namespace std;
int main()
{
int a, b;
char op;
cin >> a >> b;
cin >> op;
if (op == '+')
cout << a + b;
else if (op == '-')
cout << a - b;
else if (op == '*')
cout << a * b;
else if (op == '/')
cout << a / b;
else if (op == '%')
cout << a % b;
else
cout << 0;
return 0;
}
Explicație: