题解 | #获得月份天数#

#include<stdio.h>
int my_runnian(int a)
{
    if((a%400==0)||(a%100!=0&&a%4==0))//判断闰年
    {
        return 1;
    }
    else
    {
        return 2;
    }
}
void test(int a,int b)
{
    int arr[]={0,31,29,31,30,31,30,31,31,30,31,30,31};
    int brr[]={0,31,28,31,30,31,30,31,31,30,31,30,31};
    if(my_runnian(a)==1)
    {
        printf("%d\n",arr[b]);
    }
    else
    {
        printf("%d\n",brr[b]);
    }
}
int main()
{
    int year=0;
    int moth=0;
    while(scanf("%d%d",&year,&moth)!=EOF)
    {
        test(year,moth);
    }
    return 0;
}