cex11_1.cpp

用C语言编写的谭号强课后习题的部分解答

#include <stdio.h>
typedef
struct date
{int year;
int month;
int day;
}DATE;

int leap(int year)
{ return((year%4==0)&&(year%100!=0)||(year%400==0));
}
int days(DATE date)
{int d[12]={31,28,31,30,31,30,31,31,30,31,30,31};
 int i,day=0;
 for(i=0;i<date.month-1;i++)
	  day+=d[i];
      day+=date.day;
 return day;
}

void main()
 {DATE date;
int sum;
scanf("%d%d%d",&date.year,&date.month,&date.day);
sum=days(date);
if(leap(date.year)&&date.month>2)
 sum++;
printf("It is the %dth day",sum);
}