int select;
printf("1. Register");
printf("2. UnRegister");
printf("Enter you choice");
scanf("%d",&select); //User will enter numeric value i.e 1 or 2
switch(select){
case 1: //here numeric value will come
{
Registration();
break;
}
case 2:
{
UnRegistration();
break;
}
default:
{
printf("please enter correct option");
break;
}
}