using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace V_labaratorinis
{
    class Lecturer
    {
        const int Cn = 100;
        private string lastname;
        private string name;
        private string faculty;
        private string cathedral;
        private int hours;
        public Lecturer()
        {
            lastname = "";
            name = "";
            faculty = "";
            cathedral = "";
            hours = 0;
        }
        public Lecturer(string lastname, string name, string faculty, string cathedral)
        {

            this.lastname = lastname;
            this.name = name;
            this.faculty = faculty;
            this.cathedral = cathedral;
        }
        public override string ToString()
        {
            string eilute;
            eilute = string.Format("|     {0, -12}|     {1,-11}|       {2,-18}|{3,-35}|",
            lastname, name, faculty, cathedral);
            return eilute;
        }
        public static bool operator <=(Lecturer L1, Lecturer L2)
        {
            int p = String.Compare(L1.faculty, L2.faculty);
            return (p < 0);
        }

        public static bool operator >=(Lecturer L1, Lecturer L2)
        {
            int p = String.Compare(L1.faculty, L2.faculty);
            return p > 0;
        }
        public void PutHours(int hour, Lecturer L)
        {
            L.hours = hour;
        }
        public int Takehours() { return hours; }
    }
    class LecturesByTeacher
    {
        const int CMaxEil = 100; // didžiausias galimas savaičių skaičius
        const int CMaxSt = 30; // didžiausias galimas stulpelių (dienų) skaičius
        private int [,] L; // duomenų matrica
        public int n { get; set; } // eilučių skaičius (savaičių skaičius)
        public int m { get; set; } // stulpelių skaičius (dienų skaičius)
        public LecturesByTeacher()
        {
            n = 0;
            m = 0;
            L = new int [CMaxEil, CMaxSt];
        }
        public void Put(int i, int j, int numb)
        {
            L[i, j] = numb;
        }
        public int TakeNumb(int i, int j)
        {
            return L[i, j];
        }

    }
    class University
    {
        const int Cn = 100;
        private Lecturer[] L;
        public int k = 0;

        public University()
        {
            k = 0;
            L = new Lecturer[Cn];
        }
        public int Took() { return k; }
        public Lecturer Take(int i) { return L[i]; }
        public void Put(Lecturer ob) { L[k++] = ob; }
        public void Rikiuoti()
        {
            for (int i = 0; i < k - 1; i++)
            {
                Lecturer min = L[i];
                int im = i;
                for (int j = i; j < k; j++)
                {
                    if (L[j] <= min)
                    {
                        min = L[j];
                        im = j;
                    }
                }
                L[im] = L[i];
                L[i] = min;
            }
        }

    }
    class Program
    {
        const int Cn = 100;
        const string Cfd = "Data.txt";
        const string CFr = "Rezults.txt";
        static void Main(string[] args)
        {
            if (File.Exists(CFr))
                File.Delete(CFr);
            University university = new University();
            LecturesByTeacher lecturesByTeacher = new LecturesByTeacher();
            double avelect=0;
            ReadLecturerAndData(Cfd, university, ref lecturesByTeacher, ref avelect);
            WritingToFileFirstDate(CFr, university, lecturesByTeacher);
            int[] D = new int[lecturesByTeacher.m];
            AllWentForLectures(lecturesByTeacher, ref D);
            HowmanyHoursWorked(university, lecturesByTeacher);
            university.Rikiuoti();
            WriteAnsersToFile(CFr, D,university,avelect);
            Console.WriteLine("Baigiu darba!");

        }
        static void ReadLecturerAndData(string fd, University U, ref LecturesByTeacher K , ref double avelect)
        {
            int quantlecturer, daysofmonth;
            string line, name, lastname, faculty, cathedral;
            int hours;
            using (StreamReader reader = new StreamReader(fd))
            {
                line = reader.ReadLine();
                string[] parts;
                quantlecturer = int.Parse(line);
                line = reader.ReadLine();
                daysofmonth = int.Parse(line);
                line = reader.ReadLine();
                avelect = double.Parse(line);
                K.n = quantlecturer;
                K.m = daysofmonth;
                for (int i = 0; i < quantlecturer; i++)
                {
                    line = reader.ReadLine();
                    parts = line.Split(';');
                    lastname = parts[0];
                    name = parts[1];
                    faculty = parts[2];
                    cathedral = parts[3];
                    Lecturer L = new Lecturer(lastname, name,faculty, cathedral);
                    U.Put(L);
                }
                for (int i = 0; i < quantlecturer; i++)
                {
                    line = reader.ReadLine();
                    parts = line.Split(';');
                    for (int j = 0; j < daysofmonth; j++)
                    {
                        hours = int.Parse(parts[j]);
                        K.Put(i, j, hours);
                    }
                }
            }
        }
        static void WritingToFileFirstDate(string CFr, University U, LecturesByTeacher K)
        {
            using (var fr = File.AppendText(CFr))
            {
                fr.WriteLine("Lectures number: {0}",K.n);
                fr.WriteLine("Days: {0}", K.m);
                const string top = "|-----------------|----------------|-------------------------|-----------------------------------|\n" +
                   "|     LastName    |      Name      |         Faculty         |               Cathedral           |\n" +
                   "|                 |                |                         |                                   |\n" +
                   "|-----------------|----------------|-------------------------|-----------------------------------|\n";
                fr.Write(top);
                for (int i=0; i<K.n; i++)
                {
                    fr.WriteLine("{0}", U.Take(i).ToString());
                }
                fr.WriteLine("|-----------------|----------------|-------------------------|-----------------------------------|");
                fr.WriteLine("---------------------------------------------------");
                fr.Write("Dienos          |");
                for (int i = 0; i < K.m; i++)
                fr.Write("  {0,-2}|", i + 1);
                fr.WriteLine();
                for (int i=0; i<K.n; i++)
                {
                    fr.Write("Dėstytojas nr.{0} |", i+1);
                    for (int j = 0; j < K.m; j++)
                        fr.Write("  {0,-2}|",K.TakeNumb(i,j));
                    fr.WriteLine("");
                }
                fr.WriteLine("---------------------------------------------------");
            }
        }
        static void AllWentForLectures(LecturesByTeacher K, ref int [] D)
        {
            int days = 0;
            int p = 0; // pozymis
            for (int j=0; j<K.m; j++)
            {
                for (int i=0; i<K.n; i++)
                {
                    if (K.TakeNumb(i, j) > 0)
                     p = 1;
                    else { p = 0; i = K.n; }

                }
                if (p == 1)
                { D[days] = 1; days++; }
                else if (p == 0) { D[days] = 0; days++; }
            }
        }
        static void HowmanyHoursWorked (University U, LecturesByTeacher K)
        {
            int hours = 0;
            for (int i=0; i<K.n; i++)
            {
                for (int j=0; j<K.m; j++)
                {
                    hours = K.TakeNumb(i, j) + hours;
                    U.Take(i).PutHours(hours, U.Take(i));
                }
                hours = 0;
            }
        }
        static int LecturesAvarageHours(int i, University U,double avarage)
        {
            int p = 0;
            if (U.Take(i).Takehours() < avarage)
                p = 1;
            return p;
        }
        static void WriteAnsersToFile (string CFr,int [] D, University U, double avarage)
        {
            using (var fr = File.AppendText(CFr))
            {
                fr.WriteLine("");
                fr.WriteLine("Rezults");
                fr.WriteLine("------------------------------------------------------------------------------------------------------------");
                fr.Write("Which days all the lecturers taught: ");
                int p = 0;
                for (int i = 0; i < D.Length; i++)
                {
                    if (D[i] == 1) p++;

                }
                if (p != D.Length && p != 0)
                {
                    for (int i = 0; i < D.Length; i++)
                    {
                        if (D[i] == 1)
                            fr.Write("{0} day ", i + 1);
                    }
                    fr.WriteLine();
                }
                else if (p == 0)
                {
                    fr.WriteLine("There are no such days");
                }
                else fr.WriteLine("Lectures worked all day together");
                fr.WriteLine("------------------------------------------------------------------------------------------------------------");
                fr.WriteLine();
                fr.WriteLine("Table that has lower than avarage lectures for month:");
                int z = 0;
                for (int i = 0; i < U.k; i++)
                {
                    if (LecturesAvarageHours(i, U, avarage) == 1)
                        z++;
                }
                if (z > 0)
                {
                    const string top = "|-----------------|----------------|-------------------------|-----------------------------------|-----------|\n" +
                                     "|     LastName    |      Name      |         Faculty         |             Cathedral             | Number of |\n" +
                                     "|                 |                |                         |                                   |   days    |\n" +
                                     "|-----------------|----------------|-------------------------|-----------------------------------|-----------|\n";
                    fr.Write(top);
                    for (int i = 0; i < U.k; i++)
                    {
                        if (LecturesAvarageHours(i, U, avarage) == 1)
                            fr.WriteLine("{0}     {1,-6}|", U.Take(i).ToString(), U.Take(i).Takehours());
                    }
                    fr.WriteLine("|-----------------|----------------|-------------------------|-----------------------------------|-----------|");
                }
                else fr.WriteLine("Table can't be done ,becouse no lectures found");
            }
        }
    }
}