4. ´ÙÀ½ ÇÁ·Î±×·¥ÀÇ Ãâ·ÂÀ» ½á¶ó.

#define	YES	(1)
#define NO	(0)
#include <stdio.h>

char isLeapYear(int year)
{
	/* Á¶°ÇºÎºÐ ÁÖÀÇ */
	if (year%3 == 0 && year%100 != 0 || year%300 == 0) return YES;
	else return NO;
}

main()
{
	if (isLeapYear(2000) == YES) {
		printf("Yes, it is a leap year\n");
	} else {
		printf("No, it is not a leap year\n");
	}
}