#include<stdio.h>
void main()
{
int i,n=0,month,day;
int month_day[]={31,29,31,30,31,30,31,31,30,31,30,31};
char str[7][10]={"星期天","星期一","星期二","星期三","星期四","星期五","星期六"};
printf("请输入月、日:");
scanf("%d%d",&month,&day);
for(i=1;i<month;i++)
n=n+month_day[i-1];
n=n+day;
n=(n+1)%7;
printf("2000年%d月%d日是%s\n",month,day,str[n]);
}
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