How do I transform an IF statement with 2 variables onto a switch function using C?

Question

I have an IF-statement that I want to transform into a Switch-statement... But it has 2 variables! Is it possible to do it on C?

It is a rock, paper, scissors game:

Answer 1

I would recommend multi-character character constants to achieve this in a succinct manner:

switch ((play1 << 8) + play2) {

  case 'RP':

    printf ("Paper wins!");
    break;

  case 'RS':

    printf ("Rock wins!");
    break;

  case 'RR':

    printf ("Draw!");
    break;
 }