Program 5 Create Simple Calculator

#include<stdio.h>
#include<conio.h>

void main()
{

int c,a,b,ch;
clrscr();

printf("Enter number of a A=");
scanf("%d",&a);
printf("Enter number of a B=");
scanf("%d",&b);
printf("\t1.Addition\n\t2.substraction\n\t3.multiplication\n\t4.devesion\n");

printf("enter your choice");
scanf("%d",&ch);

switch(ch)
{

case 1:

c=a+b;
printf("%d",c);
break;

case 2:

c=a-b;
printf("%d",c);
break;

case 3:

c=a*b;
printf("%d",c);
break;

case 4:

c=a/b;
printf("%d",c);
break;

default:

printf("un valide choice");

}
getch();

}