/*
 * File:   UKOL1jelint.c
 * Author: jelint10
 *
 * Created on 19. říjen 2010, 17:45
 */

#include <stdio.h>
#include <stdlib.h>

/*
 *
 */
enum MONTHS
{
    JANUARY = 1,
    FEBRUARY = 2,
    MARCH = 3,
    APRIL = 4,
    MAY = 5,
    JUNE = 6,
    JULY = 7,
    AUGUST = 8,
    SEPTEMBER = 9,
    OCTOBER = 10,
    NOVEMBER = 11,
    DECEMBER = 12
};

int getDaysCount(int month, bool specialYear)
{
    switch (month)
    {
        case JANUARY:
        case MARCH:
        case MAY:
        case JULY:
        case AUGUST:
        case OCTOBER:
        case DECEMBER:
            return 31;
        case FEBRUARY:
        {
            if (specialYear)
                return 29;
            else
                return 28;
        }
        default:
            return 30;
    }
    return 0;
}

bool isSpecialYear(long long int year)
{
    if (year >= 1584)
    {
        if (!(year % 100) && (year % 400))
            return false;
        else if (!(year % 4000))
            return false;
        else
             return year % 4 ? false : true;
    }

    return year % 4 ? false : true;
}

void findLowOrHighYear (long long int *requiredYear, long long int higherYear, long long int lowerYear, int division, bool low)
{
    if (low)
    {
        if (division != 4 && lowerYear < 1584)
            lowerYear = 1584;
        if (division != 4 && higherYear < 1584)
            higherYear = 1584;
        for (long long int i  = (lowerYear + 1); i < higherYear; i++)
        {
            if (!(i % division))
            {
                (*requiredYear) = i;
                printf("low %d division %d \n", i, division);
                return;
            }
        }
    }
    else
    {
        if (division != 4 && lowerYear < 1584)
            lowerYear = 1584;
        if (division != 4 && higherYear < 1584)
            higherYear = 1584;
        for (long long int i  = (higherYear - 1); i > lowerYear; i--)
        {
            if (!(i % division))
            {
                (*requiredYear) = i;
                printf("high %d division %d \n", i, division);
                return;
            }
        }
    }
}

int main(int argc, char** argv)
{
    int day1 = 0;
    int month1 = 0;
    long long int year1 = 0;
    int day2 = 0;
    int month2 = 0;
    long long int year2 = 0;

    int daysYear1 = 0;
    int daysYear2 = 0;
    unsigned long long int totalDays = 0;

    long long int low4year = 0;
    long long int low100year = 0;
    long long int low400year = 0;
    long long int low4000year = 0;

    long long int high4year = 0;
    long long int high100year = 0;
    long long int high400year = 0;
    long long int high4000year = 0;

    printf("%d %d %d %d \n", low4year, low100year, low400year, low4000year);
    printf("%d %d %d %d \n", high4year, high100year, high400year, high4000year);

    printf("Zadejte prvni datum - den mesic rok:\n");

    if (scanf("%d %d %d", &day1, &month1, &year1) != 3)
    {
        printf("Nespravny vstup.\n");
        return (0);
    }
    if (isSpecialYear(year1))
         printf("Special year.\n");
    if (day1 > getDaysCount(month1, isSpecialYear(year1)) || day1 < 1)
    {
        printf("Nauc se dny v mesici voe.\n");
        return (0);
    }
    if (month1 > 12 || month1 < 1)
    {
        printf("Mas blby mesic.\n");
        return (0);
    }
    if (year1 < 1)
    {
        printf("Posrals rok.\n");
        return (0);
    }
    printf("Zadejte druhe datum - den mesic rok:\n");

    if (scanf("%d %d %d", &day2, &month2, &year2) != 3)
    {
        printf("Nespravny vstup.\n");
        return (0);
    }

    if (day2 > getDaysCount(month2, isSpecialYear(year2)) || day2 < 1)
    {
        printf("Nauc se dny v mesici voe.\n");
        return (0);
    }

    if (month2 > 12 || month2 < 1)
    {
        printf("Mas blby mesic.\n");
        return (0);
    }
    if (year2 < 1)
    {
        printf("Posrals rok.\n");
        return (0);
    }
    if (year2  < year1)
    {
        printf("tos posral\n");
        return (0);
    }
    else if (year2 == year1 && month2 < month1)
    {
        printf("tos posral\n");
        return (0);
    }
    else if (year2 == year1 && month2 == month1 && day2 < day1)
    {
        printf("tos posral\n");
        return (0);
    }
    else if (year2 == year1 && month2 == month1 && day2 == day1)
    {
        printf("Neubehl zadny den.");
        return (0);
    }
    for (int i = 1; i < month1; i++)
        daysYear1 += getDaysCount (i, isSpecialYear(year1));
    printf("%d \n", daysYear1);
    daysYear1 += day1;
    printf("%d \n", daysYear1);
    for (int i = 1; i < month2; i++)
        daysYear2 += getDaysCount (i, isSpecialYear(year2));
    printf("%d \n", daysYear2);
    daysYear2 += day2;
    printf("%d \n", daysYear2);
    /*if (year1 > year2)
    {
        if (isSpecialYear(year2))
            totalDays = 366 - daysYear2;
        else
            totalDays = 365 - daysYear2;

        totalDays += daysYear1;

        /*for (int i  = (year2 + 1); i < year1; i++)
        {
            if (isSpecialYear(i))
                totalDays += 366;
            else
                totalDays += 365;
        }*//*
        printf("%d\n", low4year);
        findLowOrHighYear(&low4year, year1, year2, 4, true);
        findLowOrHighYear(&low100year, year1, year2, 100, true);
        findLowOrHighYear(&low400year, year1, year2, 400, true);
        findLowOrHighYear(&low4000year, year1, year2, 4000, true);

        findLowOrHighYear(&high4year, year1, year2, 4, false);
        findLowOrHighYear(&high100year, year1, year2, 100, false);
        findLowOrHighYear(&high400year, year1, year2, 400, false);
        findLowOrHighYear(&high4000year, year1, year2, 4000, false);
        printf("%d\n", low4year);
        totalDays += (year1 - (year2 + 1)) * 365;
        if (high4year && low4year)
            totalDays += (high4year - low4year) / 4;
        if (high100year && low100year)
            totalDays -= (high100year - low100year) / 100;
        if (high100year && low100year)
            totalDays += (high400year - low400year) / 400;
        if (high100year && low100year)
            totalDays -= (high4000year - low4000year) / 4000;
    }
    else */if (year2 > year1)
    {
        if (isSpecialYear(year1))
            totalDays = 366 - daysYear1;
        else
            totalDays = 365 - daysYear1;
        printf("%d \n", totalDays);
        totalDays += daysYear2;
        printf("%d \n", totalDays);
        /*for (int i  = (year1 + 1); i < year2; i++)
        {
            if (isSpecialYear(i))
                totalDays += 366;
            else
                totalDays += 365;
        }*/

        findLowOrHighYear(&low4year, year2, year1, 4, true);
        findLowOrHighYear(&low100year, year2, year1, 100, true);
        findLowOrHighYear(&low400year, year2, year1, 400, true);
        findLowOrHighYear(&low4000year, year2, year1, 4000, true);

        findLowOrHighYear(&high4year, year2, year1, 4, false);
        findLowOrHighYear(&high100year, year2, year1, 100, false);
        findLowOrHighYear(&high400year, year2, year1, 400, false);
        findLowOrHighYear(&high4000year, year2, year1, 4000, false);

        totalDays += (year2 - (year1 + 1)) * 365;
        printf("%I64d \n", totalDays);
        if (high4year && low4year && (high4year - low4year))
            totalDays += ((high4year - low4year) / 4) + 1;
        else if (high4year && low4year && !(high4year - low4year))
            totalDays += 1;
        printf("%I64d \n", totalDays);

        if (high100year && low100year && (high100year - low100year))
            totalDays -= ((high100year - low100year) / 100) + 1;
        else if (high100year && low100year && !(high100year - low100year))
            totalDays -= 1;
        printf("%I64d \n", totalDays);

        if (high400year && low400year && (high400year - low400year))
            totalDays += ((high400year - low400year) / 400) + 1;
        else if (high400year && low400year && !(high400year - low400year))
            totalDays += 1;
        printf("%I64d \n", totalDays);

        if (high4000year && low4000year && (high4000year - low4000year))
            totalDays -= ((high4000year - low4000year) / 4000) + 1;
        else if (high4000year && low4000year && !(high4000year - low4000year))
            totalDays -= 1;
        printf("%I64d \n", totalDays);
    }
    else if (year2 == year1)
        totalDays = daysYear2 - daysYear1;

    // Sracky s tema dnama co se nepocitaj...
    if (year1 < 1584 && year2 > 1584)
        totalDays -= 10;
    else if (year1 == 1584 && year2 > 1584)
    {
        if (month1 == JANUARY)
        {
            for (int i = day1; i <= 16; i++)
                if (i >= 7)
                    totalDays -= 1;
        }
    }
    else if (year1 < 1584 && year2 == 1584)
    {
        if (month2 == JANUARY)
        {
            for (int i = day2; i >= 7; i--)
                if (i <= 16)
                    totalDays -= 1;
        }
        else
            totalDays -= 10;
    }
    else if (year1 == 1584 && year2 == 1584)
    {
        for (int i = daysYear1; i <= daysYear2; i++)
            if (i >= 7 && i <= 16)
                totalDays -= 1;
    }
    printf("Ubehlo: %I64d", totalDays);

    return (EXIT_SUCCESS);
}