#include
void Judge(int y)
{
while(1)
{
printf("請(qǐng)輸入要計(jì)算的年份：\n");
scanf("%d",&y);
if((y%100==0)&&(y%400==0)||(y%100!=0)&&(y%4==0))
printf("%d年是閏年,該年2月份有29天\n",y);
else
printf("%d年是平年,該年2月份有28天\n",y);
printf("\n");
}
}
void main()
{
int year;
Judge(year);
}