输入年 月 判断该月多少天

 

#include<stdio.h>
int main() {
int a, b;
int c[] = { 0,31,28,31,30,31,30,31,31,30,31,30,31 };
scanf("%d,%d", &a, &b);
if (a % 100 == 0 && a % 4 == 0 || a % 400 == 0)
c[2] = 29;
printf("%d", c[b]);
}