#include <stdio.h>
 int main() 
 { 
 int year,month,day;
 int judge,i;
 int sum=0;
 int date[2][12]={{31,28,31,30,31,30,31,31,30,31,30,31},{31,29,31,30,31,30,31,31,30,31,30,31}};
 printf("输入年月日:");
 scanf("%d %d %d",&year,&month,&day);
 judge=(year%4==0)||(year%400==0 && year%100!=0);
 for(i=0;i<month-1;i++)
 sum+=date[judge][i];
 sum+=day;
 printf("它是%d年中的第%d天\n",year,sum);
 return 0; 
 }