c程序，输入年月，输出该月的天数

Question

如题所述

Answer 1

#include <stdio.h>
void main(){
int year,month,a[13]={31,28,31,30,31,30,31,31,30,31,30,31};
scanf("%d-%d",&year,&month);
if(year%4==0&&year%100||year%400==0)
a[1]=29;
printf("%d",a[month-1]);
}

追问

我输了不行(*꒦ິ⌓꒦ີ)