Question

定义一个含年，月，日的结构体，输入一个日期，计算该日期是该年的第多少天

Answer 1

#include<stdio.h>
int main( )
{
struct dd{int y,m,d;}date;
int i,j,k;
scanf("%d%d%d",&date.y,&date.m,&date.d);
k=date.d;
if(date.m>1)k+=31;
if(date.m>2)k+=28;
if(date.m>3)k+=31;
if(date.m>4)k+=30;
if(date.m>5)k+=31;
if(date.m>6)k+=30;
if(date.m>7)k+=31;
if(date.m>8)k+=31;
if(date.m>9)k+=30;
if(date.m>10)k+=31;
if(date.m>11)k+=30;
if(date.y%4==0&&date.y%100!=0||date.y%400==0)k++;
printf("%d-%d-%d is No.%d day in %d.\n",date.y,date.m,date.d,k,date.y);
getch();
}