// Bob Myers
// File:  switch3.c
//
// a simple menu, processed with a switch

#include <stdio.h>

void ShowMenu();

int main()
{
   int a, b;
   int result;
   char option;

   printf("Enter two integers: ");
   scanf("%d %d", &a, &b);

   ShowMenu();
   printf("Enter menu choice: ");
   scanf(" %c", &option);

   switch(option)
   {
      case 'A':
      case 'a':
         result = a + b;
         break;

      case 'S':
      case 's':
         result = a - b;
         break;

      case 'M':
      case 'm':
         result = a * b;
         break;

      case 'Q':
      case 'q':
         result = a / b;
         break;

      case 'R':
      case 'r':
         result = a % b;
         break;

      default:  
         result = 0;
   }

   printf("Result = %d\n", result);

   return 0;
}

void ShowMenu()
{
   printf("\n  ** Menu **\n\n");
   printf("a  --  Add\n");
   printf("s  --  Subtract\n");
   printf("m  --  Multiply\n");
   printf("q  --  Quotient\n");
   printf("r  --  Remainder\n\n");
}