#include
int main()
{
int year,month,day;
printf("請輸入年份與月份：");
scanf("%d",&year);
scanf("%d",&month);
if(year%4==0)
{
if(year%100==0)
{
if(year%400==0)
printf("%d是閏年\n",year);
else
printf("%d不是閏年\n",year);
}
else
printf("%d是閏年\n",year);
}
else
printf("%d不是閏年\n",year);
switch (month)
{
case 1:
case 2:
case 3:
printf("%d是春季.\n",month);
break;
case 4:
case 5:
case 6:
printf("%d是夏季.\n",month);
break;
case 7:
case 8:
case 9:
printf("%d是秋季.\n",month);
break;
case 10:
case 11:
case 12:
printf("%d是冬季.\n",month);
break;
default:
printf("輸入錯誤.\n");
}
if((month==1)||(month==3)||(month==5)||(month==7)||(month==8)||(month==10)|| (month==12))
printf("該月為31天!\n");
if((month==4)||(month==6)||(month==9)||(month==11))
printf("該月為30天!\n");
if(month==2)
{
if(year%4==0)
{
if(year%100==0)
{
if(year%400==0)
printf("該月29天");
else
printf("該月28天");
}
else
printf("該月29天\n");
}
else
printf("該月28天\n");
}
return 0;
}