How to create simple calculator program in c using switch Easily

Simple calculator program in c using switch

How to create simple calculator program in c using switch Easily.It is very helpful programming coding for a beginners programmer.Switch statement is very important in c language.

This program created one kinds of software needed for this software is code blocks .
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#include<stdio.h>
int main()
{
   char option;
   int n,num1,num2,result;
   do{
       printf("*****Caculator*****\n");
       printf("\n what operation do you want to do ...??\n");
       printf("press 1 for addition \n");
       printf("press 2 for subtraction \n");
       printf("press 3 for multiplication \n");
       printf("press 4 for division \n");
       scanf("%d",&n);
       printf("Enter 1st number :");
       scanf("%d",&num1);

       printf("Enter 2nd number :");
       scanf("%d",&num2);

    switch(n){
                          case 1:result=num1+num2;
             printf("\n summation of:%d\n",result);
             break;

                          case 2:result=num1-num2;
             printf("\n subtraction of:%d\n",result);
             break;

                          case 3:result=num1*num2;
             printf("\n multiplication of:%d\n",result);
             break;

                        case 4:result=num1/num2;
             printf("\n division of:%d\n",result);
             break;

             default : printf("wrong...");

             }
             printf("\a\n Do you want to continue y/n");
             option=getche();
        }
        while(option=='y');
        return 0;

}
This programs output is:

   

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