#include <stdlib.h>
#include <iostream>
#include <iomanip>


using namespace std;
int DaysinYear(int year);
bool LeapYear(int year);
int DaysinMonth(int month);
int DaysBetween(int m, int d, int y);

int main()
{
    
    cout << "This program was written by Heritage High School Team B.\n"
         << "This program will calculate how many days until Chritmas.\n\n";
    
    int month, day, year, yearl, daysb;
    
    cout << "Please enter a date in the format of mm dd yyyy.";
    cin >> month >> day >> year;
    
    yearl = DaysinYear(year);
    daysb = DaysBetween(month, day, year);
    
    cout << "You have " << yearl - daysb << " left until Christmas.";
    
    
	cout << endl << endl;
	system("PAUSE");	
	return 0;
}

int DaysinYear(int year)
{
    if (LeapYear(year))
        return 366;
    return 365;
}

bool LeapYear(int year)
{
    if((year%4 == 0) && ((year%100 != 0) || (year%400 == 0)))
        return true;
    return false;
}

int DaysinMonth(int month)
{
    switch(month)
    {
        case 9:
        case 4:
        case 6:
        case 11: return 30;
        case 2:
            if (LeapYear)
                 return 29;
            else
                 return 28;
        case 0: return 0;
        default: return 31;
    }    
}

int DaysBetween(int m, int d, int y)
{
    int DaysLeft =  DaysInMonth(m) - d;
    switch()
    {
        
    }    
    
}    
/*
int main()
{
    
    cout << "This program was written by Heritage High School Team B.\n"
         << "This program will calculate how many days until Chritmas.\n\n";
    
    int month, day, year, yearl, daysb;
    
    cout << "Please enter a date in the format of mm dd yyyy.";
    cin >> month >> day >> year;
    
    yearl = DaysinYear(year);
    daysb = DaysBetween(month);
    
    cout << "You have " << yearl - daysb << " left until Christmas.";
    
    
	cout << endl << endl;
	system("PAUSE");	
	return 0;
}

int DaysinYear(int year)
{
    if (LeapYear(year))
        return 366;
    return 365;
}

bool LeapYear(int year)
{
    if((year%4 == 0) && ((year%100 != 0) || (year%400 == 0)))
        return true;
    return false;
}

int DaysinMonth(int month)
{
    switch(month)
    {
        case 9:
        case 4:
        case 6:
        case 11: return 30;
        case 2:
            if (LeapYear)
                 return 29;
            else
                 return 28;
        case 0: return 0;
        default: return 31;
    }    
}

int DaysBetween(int month)
{
    int days=0;
    for (; month < 12; month++)
    {
        days = DaysinMonth(month);
    }
    return days;    
    
}