[cpp]
#include <iostream>
using namespace std;
struct Date
{
int year;
int month;
int day;
};
int days(Date date);
int main()
{
int xc;
Date date1,date2;
cout<<"input 第一位同學出生 year,month,day:";
cin>>date1.year>>date1.month>>date1.day;
cout<<"input 第二位同學出生 year,month,day:";
cin>>date2.year>>date2.month>>date2.day;
int days1,days2;
days1=days(date1);
days2=days(date2);
xc=days1-days2;
if(xc<0)
xc=-xc;
cout<<"兩人生日相差"<<xc<<"天"<<endl;
return 0;
}
int days(Date date)
{
int days;
switch(date.month)
{
case 1:
days=date.day;
break;
case 2:
days=date.day+31;
break;
case 3:
days=date.day+59;
break;
case 4:
days=date.day+90;
break;
case 5:
days=date.day+120;
break;
case 6:
days=date.day+151;
break;
case 7:
days=date.day+181;
break;
case 8:
days=date.day+212;
break;
case 9:
days=date.day+243;
break;
case 10:
days=date.day+273;
break;
case 11:
days=date.day+304;
break;
case 12:
days=date.day+334;
break;
}
if(date.year%4==0 && date.year/100==0 || date.year%400==0)
date.day+=1;
return days;
}
