using System;

public class Program

{

    public static void Main()

    {

        Kita kita1 = new Kita('D', 3, 4);

        Kita kita2 = new Kita('A', 2, 5);

        Console.WriteLine("Description (kita1): " + kita1.ToString());

        Console.WriteLine("Description: (kita2): " + kita2.ToString());

        Console.WriteLine("Number of students in kita1: " + kita1.GetNumOfStudents());

        Console.WriteLine("Number of students in kita2: " + kita2.GetNumOfStudents());

​

        Talmid t1 = new Talmid("כהן אלי", new Date(21, 05, 2004));

        int[] t1_Grades = { 38, 76, 89, 43, 54 };

        t1.SetGrades(t1_Grades);

​

        Talmid t2 = new Talmid("לוי נתנאל", new Date(21, 01, 1997));

        int[] t2_Grades = { 93, 90, 99, 93, 100 };

        t2.SetGrades(t2_Grades);

​

        Talmid t3 = new Talmid("לוי נחום", new Date(01, 09, 1986));

        int[] t3_Grades = { 15, 10, 34, 23, 39 };

        t3.SetGrades(t3_Grades);

​

​

        if (kita1.AddStudent(t1)) { Console.WriteLine(t1.GetName() + " was added to the class!"); }

        else { Console.WriteLine(t1.GetName() + " wasn't added to the class!"); }

​

        if (kita1.AddStudent(t2)) { Console.WriteLine(t2.GetName() + " was added to the class!"); }

        else { Console.WriteLine(t2.GetName() + " wasn't added to the class!"); }

​

        if (kita2.AddStudent(t3)) { Console.WriteLine(t3.GetName() + " was added to the class!"); }

        else { Console.WriteLine(t3.GetName() + " wasn't added to the class!"); }

​

        Console.WriteLine("Description (kita1)(again): " + kita1.ToString());

        Console.WriteLine("Description (kita2)(again): " + kita2.ToString());

​

        Console.WriteLine(kita1.BestStudent().GetName() + " is the best student in kita1");

        Console.WriteLine(kita2.BestStudent().GetName() + " is the best student in kita2");

​

        Console.WriteLine("Enter Name, Day, Month, Year:");

        Talmid t = new Talmid(Console.ReadLine(), new Date(int.Parse(Console.ReadLine()), int.Parse(Console.ReadLine()), int.Parse(Console.ReadLine())));

        if (kita1.IsStudentlnClass(t)) { Console.WriteLine(t.GetName() + " is a member of the class kita1!"); }

        else if (kita2.IsStudentlnClass(t)) { Console.WriteLine(t.GetName() + " is a member of the class kita2!"); }

        else { Console.WriteLine(t.GetName() + " isn't a member of any class!"); }

​

        int levy_counter = 0, cohen_counter = 0, high_grade_kita1_counter = 0, high_grade_kita2_counter = 0, kita1_fail_counter = 0, kita2_fail_counter = 0;

        for (int i = 0; i < kita1.GetTalmidim().Length; i++)

        {

            if (kita1.GetTalmidim()[i] != null)

            {

                if (kita1.GetTalmidim()[i].GetName().IndexOf("לוי") != -1) { levy_counter++; }

                else if (kita1.GetTalmidim()[i].GetName().IndexOf("כהן") != -1) { cohen_counter++; }

​

                if (kita1.GetTalmidim()[i].Avg() < 55) { kita1_fail_counter++; } // נכשל = 55

                if (kita1.GetTalmidim()[i].Avg() > 85) { high_grade_kita1_counter++; }

            }

        }

        for (int i = 0; i < kita2.GetTalmidim().Length; i++)

        {

            if (kita2.GetTalmidim()[i] != null)

            {

                if (kita2.GetTalmidim()[i].GetName().IndexOf("לוי") != -1) { levy_counter++; }

                else if (kita2.GetTalmidim()[i].GetName().IndexOf("כהן") != -1) { cohen_counter++; }

​

                if (kita2.GetTalmidim()[i].Avg() < 55) { kita2_fail_counter++; } // נכשל = 55

                if (kita2.GetTalmidim()[i].Avg() > 85) { high_grade_kita2_counter++; }

            }

        }

        Console.WriteLine("Contains Levy: " + levy_counter);

        Console.WriteLine("Contains cohen: " + cohen_counter);

​

        Console.WriteLine("Falis in kita1: " + kita1_fail_counter);

        Console.WriteLine("Falis in kita2: " + kita2_fail_counter);

​

        Console.WriteLine("High grades in kita1: " + high_grade_kita1_counter);

        Console.WriteLine("High grades in kita2: " + high_grade_kita2_counter);

​

        if (kita1.BestStudent().Avg() > kita2.BestStudent().Avg())

            Console.WriteLine(kita1.BestStudent().GetName() + " is the best student in both of the classes!");

        else if (kita1.BestStudent().Avg() < kita2.BestStudent().Avg())

            Console.WriteLine(kita2.BestStudent().GetName() + " is the best student in both of the classes!");

    }

}

class Kita

{

    private char level;

    private int number;

    private int numOfStudents;

    private Talmid[] talmidim;

​

    public Kita(char level, int number, int numOfStudents)

    {

        this.level = level;

        this.number = number;

        this.numOfStudents = numOfStudents;

        talmidim = new Talmid[20];

    }

    public Kita(char level, int number)

    {

        this.level = level;

        this.number = number;

​

        Console.WriteLine("Enter the number of students:");

        numOfStudents = int.Parse(Console.ReadLine());

​

        int[] grades = new int[5];

        talmidim = new Talmid[20];

        for (int i = 0; i < talmidim.Length; i++)

        {

            Console.WriteLine("Enter Name, Day, Month, Year:");

            talmidim[i] = new Talmid(Console.ReadLine(), new Date(int.Parse(Console.ReadLine()), int.Parse(Console.ReadLine()), int.Parse(Console.ReadLine())));

​

            Console.WriteLine("Enter Grades:");

            for (int k = 0; k < grades.Length; k++)

                grades[k] = int.Parse(Console.ReadLine());

​

            talmidim[i].SetGrades(grades);

        }

    }

    public Kita()

    {

        Console.WriteLine("Enter Level, class Number, number of students:");

        level = char.Parse(Console.ReadLine());

        number = int.Parse(Console.ReadLine());

        numOfStudents = int.Parse(Console.ReadLine());

​

        int[] grades = new int[5];

        talmidim = new Talmid[20];

        for (int i = 0; i < talmidim.Length; i++)

        {

            Console.WriteLine("Enter Name, Day, Month, Year:");

            talmidim[i] = new Talmid(Console.ReadLine(), new Date(int.Parse(Console.ReadLine()), int.Parse(Console.ReadLine()), int.Parse(Console.ReadLine())));

​

            Console.WriteLine("Enter Grades:");

            for (int k = 0; k < grades.Length; k++)

                grades[k] = int.Parse(Console.ReadLine());

​

            talmidim[i].SetGrades(grades);

        }

    }

    public Kita(Kita kita)

    {

        level = kita.level;

        number = kita.number;

        numOfStudents = kita.numOfStudents;

        talmidim = new Talmid[20];

        for (int i = 0; i < numOfStudents; i++)

            talmidim[i] = kita.talmidim[i];

    }

​

    public char GetLevel () { return this.level; }

    public int GetNumber () { return this.number; }

    public int GetNumOfStudents () { return this.numOfStudents; }

    public Talmid[] GetTalmidim () { return this.talmidim; }

​

    public void SetLevel(char level) { this.level = level; }

    public void SetNumber(int number) { this.number = number; }

    public void SetNumOfStudents(int numOfStudents) { this.numOfStudents = numOfStudents; }

    public void SetTalmidim(Talmid[] talmidim) { this.talmidim = talmidim; }

​

    public Talmid BestStudent()

    {

        Talmid tBest = talmidim[0];

        for (int i = 0; i < numOfStudents; i++)

        {

            if (talmidim[i] != null)

            {

                if (talmidim[i].Avg() > tBest.Avg())

                    tBest = talmidim[i];

            }

        }

​

        return tBest;

    }

    public bool IsStudentInClass(Talmid st)

    {

        for (int i = 0; i < numOfStudents; i++)

        {

            if (talmidim[i] != null)

            {

                if (talmidim[i].GetName() == st.GetName())

                    return true;

            }

        }

​

        return false;

    }

    public bool AddStudent (Talmid stu)

    {

        for (int i = 0; i < numOfStudents; i++)

            if (talmidim[i] == null) { talmidim[i] = new Talmid(stu); return true; }

​

        return false;

    }

    public override string ToString()

    {

        int[] studentGrades = new int[5];

        string str = "Level: " + level + ", Grade Number: " + number + ", Number of students: " + numOfStudents;

        for (int i = 0; i < numOfStudents; i++)

        {

            if (talmidim[i] != null)

            {

                str += ", Name of student: " + talmidim[i].GetName() + ", birth of " + talmidim[i].GetName() + ": " + talmidim[i].GetBirth().ToString() +

                    ", Grades of " + talmidim[i].GetName() + ": ";

                studentGrades = talmidim[i].GetGrades();

                for (int k = 0; k < studentGrades.Length; k++)

                    str +=  ", " + studentGrades[k];

            }

        }

​

        return str;

    }

}

​

class Talmid

{

    private string Name;

    private Date birth;

    private int[] grades;

​

    //פעולה בונה

    public Talmid(string Name, Date birth)

    {

        this.Name = Name;

        this.birth = new Date(birth); // הפעלת הפעולה הבונה מעתיקה של המחלקה Date

        this.grades = new int[5];

    }

    //פעולה בונה מעתיקה

    public Talmid(Talmid t)

    {

        this.Name = t.Name;

        this.birth = new Date(t.birth);

        this.grades = new int[5];

        for (int i = 0; i < grades.Length; i++)

            grades[i] = t.grades[i];

    }

​

    //פעולות מאחזרות

    public string GetName()

    {

        return Name;

    }

    public Date GetBirth()

    {

        // return this.birth;

        //יצרנו עצם חדש מסוג תאריך על ידי הפעלת הפעולה הבונה מעתיקה

        Date temp = new Date(this.birth);

        return temp;

    }

    public int[] GetGrades()

    {

        // return this.grades;

        int[] copy = new int[this.grades.Length];

        for (int i = 0; i < copy.Length; i++)

            copy[i] = this.grades[i];

        return copy;

    }

​

    //פעולות קובעות

    public void SetName(string Name)

    {

        this.Name = Name;

    }

​

    public void SetBirth(Date d)

    {

        // this.birth = d;

        //נכנס לתכונות של הפרמטר ונעתיק את התכונות ולא כתובת

        this.birth.SetDay(d.GetDay());

        this.birth.SetMonth(d.GetMonth());

        this.birth.SetYear(d.GetYear());

    }

    public void SetGrades(int[] grades)

    {

        //this.grades = grades;

        for (int i = 0; i < grades.Length; i++)

            this.grades[i] = grades[i];

    }

    public double Avg()

    {

        int sum = 0;

        for (int i = 0; i < this.grades.Length; i++)

            sum += this.grades[i];

        return (double)sum / this.grades.Length;

    }

​

    public override string ToString()

    {

        string st = "name: " + this.Name + ", birth: " + this.birth.ToString() + ", grades: ";

        for (int i = 0; i < grades.Length; i++)

            st += this.grades[i] + ", ";

        return st;

    }

}

​

class Date

{

    //תכונות

    private int Day;

    private int Month;

    private int Year;

​

    //פעולות בונות

    public Date(int Day, int Month, int Year)

    {

        this.Day = Day;

        this.Month = Month;

        this.Year = Year;

    }

​

    public Date(Date d)

    {

        this.Year = d.Year;

        this.Day = d.Day;

        this.Month = d.Month;

    }

​

    //פעולות Get (מחזירות)

    public int GetDay()

    {

        return Day;

    }

​

    public int GetMonth()

    {

        return Month;

    }

​

    public int GetYear()

    {

        return Year;

    }

​

    //פעולות SET (מעדכנות)

    public void SetDay(int Day)

    {

        this.Day = Day;

    }

​

    public void SetMonth(int Month)

    {

        this.Month = Month;

    }

​

    public void SetYear(int Year)

    {

        this.Year = Year;

    }

​

    //הפעולה COMPERTO

    public int ComperTo(Date other)

    {

        if (this.Year == other.Year)

        {

            if (this.Month == other.Month)

            {

                return (this.Day - other.Day);

            }

            else

            {

                return (this.Month - other.Month);

            }

        }

        else

        {

            return (this.Year - other.Year);

​

        }

    }

    // הפעולה TOSTRING

    public override string ToString()

    {

        return (Day + "/" + Month + "/" + Year);

    }

}