c语言编程 输出1000~2000年中所有闰年的年号

#include <stdio.h>
#define IS_WANTED_YEAR(y) ((((y)%400==0)||(((y)%4==0)&&((y)%100!=0)))?1:0)
int main(void) {
int year, n = 0;
for (year = 1000; year <= 2000; year+=4) {
if(IS_WANTED_YEAR(year)) {
printf("%d\t", year);
n++;
if(n%5==0)
putchar('\n');
}
}
printf("\n");
return 0;
}