Kiểm tra năm nhuận

/************************************************************
#include "stdio.h"
#include "conio.h"

#define IS_LEAP_YEAR(year) ((year%400 == 0) || (year%4 == 0 && year%100 != 0))? true : false

void main()
{
int year;
printf("\nNhap vao nam: ");
scanf("%d", &year);

if(IS_LEAP_YEAR(year))
printf("%d la nam nhuan", year);
else
printf("%d khong phai la nam nhuan", year);
getch();
}