8-2.c

好东西,绝对是好东西,我向大家推荐

#include <stdio.h>
int main()
{
	int i,f,a[4];
	for(i=0;i<4;i++)
	scanf("%d",&a[i]);	
	for(i=0;i<4;i+=2)
	{
		if(a[i]%4==0&&a[i]%100!=0)
		{f=1;}
		else f=0;
		switch(a[i+1])
		{
			case 1:printf("31\n");break;
			case 2:if(f==1)printf("29\n");
			else printf("28\n");break;
			case 3:printf("31\n");break;
			case 4:printf("30\n");break;
			case 5:printf("31\n");break;
			case 6:printf("30\n");break;
			case 7:printf("31\n");break;
			case 8:printf("30\n");break;
			case 9:printf("31\n");break;
			case 10:printf("30\n");break;
			case 11:printf("31\n");break;
			case 12:printf("30\n");break;
		}
	}
	return(0);
}