1) [20 pts] 

There are other ways of doing this, this was mine.

#include<stdio.h>

main()
{
  int first, second, error = 0;;

  printf("Please enter your selection  ");
  scanf("%d %d",&first, &second);
  printf("\n");
  switch(first)
    {
    case 1: 
      if (second == 1)
	printf("Small ");
      else if (second == 2)
	printf("Large ");
      else
	error ++;
      if (!error)
	printf("Snickers\n");
      break;
    case 2:
      if (second == 1)
	printf("Small ");
      else if (second == 2)
	printf("Large ");
      else
	error ++;
      if (!error)
	printf("Mounds\n");
      break;
    case 3:
      if (second == 1)
	printf("Small ");
      else if (second == 2)
	printf("Large ");
      else
	error ++;
      if (!error)
	printf("M&M's\n");
      break;
    default:
      error ++;
    }
  if (error)
    printf("Invalid selection.\n");
  else
    printf("\nThank you for using the vending machine.\n");
}




2) [20 points]

Each part is worth 5 points. All or nothing. 

a)
 *B*


b) 
*D*
*G*

c) 
*F*

d)
none of the above