Ganjil/Genap pada C++

#include <iostream.h>

void main()
{
      int n;
      cout << "masukan angka = "; cin >> n;
      if (n == 0)
      cout << "bilangan nol " << endl;
      else
      if (n %2 == 0)
      cout << "bilangan genap " << endl;
      else
      cout << "bilangan ganjil " << endl;
getch();
}