Moon/main.cpp

#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <math.h>

using namespace std;

struct time
{
    int hours, minutes, seconds;
};

struct day_info
{
    struct time rise, culmination, setting;
    int day_size;
};

struct day_info get_day_info(ifstream* file)
{
    int YMD, HMS, nextYMD, nextHMS, headBytes;
    double El, nextT, nextR, nextEl, nextAz, nextFI, nextLG, prevEl;
    struct time rise, culmination, setting;
    *file >> nextYMD >> nextHMS >> nextT >> nextR >> nextEl >> nextAz >> nextFI >> nextLG;
    headBytes = file->tellg();
    YMD = nextYMD;
    HMS = nextHMS;
    El = nextEl;
    *file >> nextYMD >> nextHMS >> nextT >> nextR >> nextEl >> nextAz >> nextFI >> nextLG;
    while(YMD == nextYMD)
    {
        // cout << El << ' ' << nextEl << endl;
        if (El < 0 and nextEl > 0)
        {
            // cout << "rise /|" << endl;
            rise.hours = nextHMS/10000;
            rise.minutes = (nextHMS/100)%100;
            rise.seconds = nextHMS%100;
        }
        else if (El > prevEl and El > nextEl and El > 0 and nextEl > 0 and prevEl > 0)
        {
            // cout << "culmination /|" << endl;
            culmination.hours = HMS/10000;
            culmination.minutes = (HMS/100)%100;
            culmination.seconds = HMS%100;
        }
        else if (El > 0 and nextEl < 0)
        {
            // cout << "setting /|" << endl;
            setting.hours = nextHMS/10000;
            setting.minutes = (nextHMS/100)%100;
            setting.seconds = nextHMS%100;
        }
        YMD = nextYMD;
        HMS = nextHMS;
        prevEl = El;
        El = nextEl;
        *file >> nextYMD >> nextHMS >> nextT >> nextR >> nextEl >> nextAz >> nextFI >> nextLG;
        cout << nextYMD << ' ' << nextHMS << ' ' << nextT << ' ' << nextR << ' ' << nextEl << ' ' << nextAz << ' ' << nextFI << ' ' << nextLG << endl;
    }
    struct day_info day_result;
    day_result.rise = rise;
    day_result.culmination = culmination;
    day_result.setting = setting;
    day_result.day_size = file->tellg() - headBytes;
    return day_result;
}

int countDays(int year, int months, int day)
{
    months -= 1;
    int result = (months/2)*30 + (months/2 + months%2)*31;
    if (months > 1) result -= 2;
    if (months > 1 and year % 4 == 0) result += 1;
    if (months > 5) result += 1;
    return result + day;
}

int main() {
    ifstream file;
    string filepath = "Moon/moon";
    int year, month, day;
    cin >> year >> month >> day;
    for(int i = 0; i < 4; i++) {
        cout << (year / (int)pow(10, 3-i))%10 << endl;
        filepath += char((year / (int)pow(10, 3-i))%10 + '0');
    }
    filepath += ".dat";
    cout << filepath << endl;
    file.open(filepath);
    if(file) {
        string s;
        getline(file, s);
        cout << s << endl;
        int headsize = file.tellg();
        struct day_info first_day = get_day_info(&file);
        cout << first_day.day_size << endl;
        cout << countDays(year, month, day) << endl;
        file.seekg( countDays(year, month, day) * (first_day.day_size) + headsize, ios_base::beg);
        struct day_info day_result = get_day_info(&file);
        cout << day_result.rise.hours << ':' << day_result.rise.minutes << ':' << day_result.rise.seconds << endl;
        cout << day_result.culmination.hours << ':' << day_result.culmination.minutes << ':' << day_result.culmination.seconds << endl;
        cout << day_result.setting.hours << ':' << day_result.setting.minutes << ':' << day_result.setting.seconds << endl;

        // int days = 100;
        // int prevSize = 0;
        // for(int i = 0; i < days; i++) {
        //     struct day_info first_day = get_day_info(&file);
        //     cout << first_day.day_size - prevSize << endl;
        //     prevSize = first_day.day_size;
        // }
    }
    return 0;
}