I/O Operations SRM Calculator

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.

Refer sample input and output:

Input should be between 1 to 4

Only Integer numbers as input.

If input is less than or greater than 1 to 4 print "Invalid Input".

TEST CASE 1 

INPUT

1
35 36

OUTPUT

71

TEST CASE 2 

INPUT

2
35 36

OUTPUT

-1

#include <iostream>
using namespace std;
int main() {
 int option,num1,num2;
 cin>>option;
  if(option<5 && option>0){
    cin>>num1>>num2;
    if(option==1)
      cout<<num1+num2;
    else if(option==2)
      cout<<num1-num2;
    else if(option==3)
      cout<<num1*num2;
    else
      cout<<num1/num2;
  }
  else{
   cout<<"Invalid Input";
  }
 return 0;
}