题解 | #获得月份天数#

#include<stdio.h>
int func(int y,int m)
{
    static int arr[] = {0,31,28,31,30,31,30,31,31,30,31,30,31 };
    if( m == 2 && ((y % 4 == 0 && y % 100 != 0) || y % 400 == 0))
    {
        return 29;
    }
    else
    {
        return arr[m];
    }

}
int main()
{
    int y,m;
    while(scanf("%d%d",&y,&m) != EOF)
    {
       printf("%d\n",func(y,m));
    }



    return 0;
}