GREAT CALCULATOR

• Problem Description

  
  SRM Students decides to create a software to extend our help to Petty shops and Shops. In this regard the "STUDENT" team has selected a few students to complete the task. The task was monitored by a group of experts and the software was tested by a expert team from corporate.
  
  The task is as follows when there are two items and if the shop keeper says 1 then it needs to add the two items. If the shop keeper yells 2 then the two items should be subtracted. And when the shop keeper tells 3 then the product of the items needs to be outputted. When shop keeper tells as 4 then the items should fight with one another.
  
  Only Integer numbers as input
  
  Input 1 = addition
  Input 2 = Substraction
  Input 3 = Multiplication
  Input 4 = Division

• CODING ARENA

• #include <stdio.h>

  int main()

  {

    char a;

    int b,c;

    scanf("%c",&a);

    switch (a)

    {

      case '1':

      scanf("%d %d",&b,&c);

      printf("%d",b+c);

      break;

      case '2':

      scanf("%d %d",&b,&c);

      printf("%d",b-c);

      break;

      case '3':

      scanf("%d %d",&b,&c);

      printf("%d",b*c);

      break;

      case '4':

      scanf("%d %d",&b,&c);

      printf("%d",b/c);

      break;

      default:

        printf("Invalid Input");

    }

      

      

  
  

  return 0;

  }

• Test Case 1

  
  Input (stdin)

  1
  
  35 36
  
  

  Expected Output

  71

• Test Case 2

  
  Input (stdin)

  5
  
  23 45
  
  

  Expected Output

  Invalid Input