题解 | 获得月份天数

#include<stdio.h>

int main()
{
    int year = 0;
    int month = 0;
    int days[15] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    while(scanf("%d %d", &year, &month) != EOF)
    {
        if(((year % 400 == 0) || ((year % 4 == 0) && (year % 100 != 0))) && (month == 2))
        {
            printf("%d\n", days[2] + 1);
  
        }
        else
        {
            printf("%d\n", days[month]);
        }
    }
    return 0;
}