#include <conio.h>
#include <stdio.h>
enum Days {Sun, Mon, Tue, Wed, Thu, Fri, Sat};
void main(){
Days d, i;
clrscr();
printf("Nhap 1 thu (0:Sun-->6: Sat): ");
scanf("%d", &i);
switch(i){
case Sun:
printf("Sunday");
break;
case Mon:
printf("Monday");
break;
case Tue:
printf("Tuesday");
break;
case Wed:
printf("Wednesday");
break;
}
getch();
}