cex8_18.cpp

用C语言编写的谭号强课后习题的部分解答

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

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