Program to check even and odd numbers:
int main()
{
                int  your_number;
                cout << "Enter a whole number: ";
                cin >> your_number;
 
                if (your_number % 2 == 0)
                   cout << "Your number is even\n";
                else
        {
                  cout << "Your number is odd.\n";
                }
cout << "That's all!\n";
return 0;
}