using System;

​

​

namespace ClassworkAdvancedClasses3._12._17

{

    public class Program

    {

        public static void Main(string[] args)

        {

            Console.WriteLine("how many students in class?");

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

            Student[] students = new Student[num];

            Random rnd = new Random();

            int id, day, month, year, numGrades = 3, top = 0;

            Date d1;

            string name;

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

            {

                id = rnd.Next(1000, 10000);

                Console.WriteLine("insert name");

                name = Console.ReadLine();

                day = rnd.Next(1, 32);

                month = rnd.Next(1, 13);

                year = rnd.Next(2000, 2002);

                d1 = new Date(day, month, year);

                students[i] = new Student(id, name, d1, numGrades);

                students[i].ReadGrades();

                if (students[i].GetAverage() >= top)

                    top = students[i].GetAverage();

            }

            for (int h = 0; h < num; h++)

            {

                if (students[h].GetAverage()==top)

                {

                    Console.WriteLine(students[h].ToString());

                }

            }

        }

    }

    public class Date

    {

        private int day;

        private int month;

        private int year;

        public Date(int day, int month, int year)

        {

            this.day = day;

            this.month = month;

            this.year = year;

        }

        public Date(Date birthday)

        {

            this.day = birthday.day;

            this.month = birthday.month;

            this.year = birthday.year;

        }

​

        public int GetYear()

        {

            return this.year;

        }

​

        public int GetMonth()

        {

            return this.month;

        }

​

        public int GetDay()

        {

            return this.day;

        }

​

        public int DaysInYear()

        {

            if (year % 4 == 0)

            {

                return 366;

            }

​

            return 365;

        }

​

        public bool IsIntresting()

        {

            if (this.day == this.month)

            {

                if (this.day < 10 && this.day == this.year % 10)

                    return true;

                if (this.day == this.year % 100)

                    return true;

            }

​

            return false;

        }

​

        int[] DaysInMonth = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

        public int DaysPass()

        {

            int num = 0;

            for (int i = 0; i < this.month - 1; i++)

            {

                num += DaysInMonth[i];

            }

​

            num += this.day;

            if (DaysInYear() == 366 && month > 2)

            {

                return num + 1;

            }

​

            return num;

        }

​

        public override string ToString()

        {

            string st = (this.day + " / " + this.month + " / " + this.year);

            return st;

        }

    }

    public class Student

    {

        private int id;

        private string name;

        private Date birthday;

        private int numGrades;

        private int[] grades;

        public Student(int id, String name, Date birthday, int numGrades)

        {

            this.id = id;

            this.name = name;

            this.birthday = new Date(birthday);

            this.numGrades = numGrades;

            this.grades = new int[numGrades];

        }

        public string GetName()

        {

            return this.name;

        }

        public Date GetBirthday()

        {

            return this.birthday;

        }

        public void  SetGrade(int place, int grade)

        {

            this.grades[place] = grade;

        }

        public void check(int grade)

        {

            while (grade>100 || grade<0)

            {

                Console.WriteLine("Unacceptable Grade, please change to a grade between 0 and 100 (including 0 and 100)");

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

            }

        }

        public void ReadGrades()

        {

            int grade;

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

            {

                Console.WriteLine("insert grade #"+i);

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

                check(grade);

                SetGrade(i, grade);

            }

        }

        public int GetAverage()

        {

            int sum = 0;

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

            {

                sum += grades[i];

            }

            return sum / numGrades;

        }

        override public string ToString()

        {

            return "id: " + this.id + " name: " + this.name + " birthday: " + this.birthday +" average: "+GetAverage();

        }

    }

}

​

​

​