int Combinations(int group, int members)
// Pre: group and members are positive.
// Post: Function value = number of combinations of members size
// that can be constructed from the total group size.
{
  if (members == 1)
    return group; // Base case 1
  else if (members == group)
    return 1; // Base case 2
  else
    return (Combinations(group-1, members-1) +
	    Combinations(group-1, members));
}