题解 | #判断闰年#

#include <stdio.h>

int main() {
    int n = 0;

    while (~scanf("%d", &n))
    {
        printf("%s\n", ((n % 400 == 0) || (n % 4 == 0 && n % 100 != 0)) ? "yes" : "no");
    }

    return 0;
}