Write a menu driven program to perform following option Right shift Left shift One’s complement

#include<stdio.h>
#include<conio.h>
void main()
{
int no,ans,ch,b;
clrscr();
printf("\n enter the number = ");
scanf("%d",&no);
do
{
printf("\n 1:Right Shift ");
printf("\n 2:Left Shift ");
printf("\n 3:Ones compliment ");
printf("\n 4:Exit");
printf("\n ENTER YOUR CHOICE ");
scanf("%d",&ch);
switch(ch)
{
case 1: printf("\n How Many Bits To Shift ");
    scanf("%d",&b);
    ans=no>>b;
    printf("\n Answer is =%d",ans);
    break;
case 2: printf("\n How Many Bits To Shift ");
    scanf("%d",&b);
    ans=no<<b;
    printf("\n Answer is =%d",ans);
    break;
case 3: printf("\n Ones Cmpliment");
    ans=~no;
    printf("\n ones compliment=%d",ans);
    break;
case 4:printf("\n thank you \n");
       getch();
       exit(0);
default:printf("\n invalid choice \n");
    getch();
    }

       }while(ch!=4);
       }