#include<stdio.h>
int main()
{
int day,month,year,sum,leap;
printf("请输入年月日,格式如(2018,6,16)\n");
scanf("%d %d %d",&year,&month,&day);
switch(month)
{
case 1:sum=0;break;
case 2:sum=31;break;
case 3:sum=59;break;
case 4:sum=90;break;
case 5:sum=120;break;
case 6:sum=151;break;
case 7:sum=181;break;
case 8:sum=212;break;
case 9:sum=243;break;
case 10:sum=273;break;
case 11:sum=304;break;
case 12:sum=334;break;
default:printf("data error");break;
}
sum=sum+day;
if(year%400==0||(year%4==0&&year%100!=0))
{
leap=1;
}
else {
leap=0;
}
if(leap==1&&month>2){
sum++;
}
printf("这是这一年的第%d天",sum);
printf("\n");
}
int main()
{
int day,month,year,sum,leap;
printf("请输入年月日,格式如(2018,6,16)\n");
scanf("%d %d %d",&year,&month,&day);
switch(month)
{
case 1:sum=0;break;
case 2:sum=31;break;
case 3:sum=59;break;
case 4:sum=90;break;
case 5:sum=120;break;
case 6:sum=151;break;
case 7:sum=181;break;
case 8:sum=212;break;
case 9:sum=243;break;
case 10:sum=273;break;
case 11:sum=304;break;
case 12:sum=334;break;
default:printf("data error");break;
}
sum=sum+day;
if(year%400==0||(year%4==0&&year%100!=0))
{
leap=1;
}
else {
leap=0;
}
if(leap==1&&month>2){
sum++;
}
printf("这是这一年的第%d天",sum);
printf("\n");
}