using System;

using System.Collections.Generic;

public class Solution

{

    public static void Main(string[] args)

    {

        List<Student> studentlist = new List<Student>();

        Strength strength = new Strength();

        Student[] stud = new Student[13];

        stud[0] = new Student("Ashwin","CSE",20, DateTime.Parse("10/12/2019"));

        stud[1] = new Student("Hemant","EC",22, DateTime.Parse("10/12/2018"));

        stud[2] = new Student("Shashank","ME",23, DateTime.Parse("12/8/2019"));

        stud[3] = new Student("Tarun","EEE",21, DateTime.Parse("10/12/2019"));

        stud[4] = new Student("Nikhil","EE",20, DateTime.Parse("08/12/2010"));

        stud[5] = new Student("Deep","CE",21, DateTime.Parse("10/12/2019"));

        stud[6] = new Student("Ankit","CSE",25, DateTime.Parse("12/05/2010"));

        stud[7] = new Student("bride","EC",20, DateTime.Parse("10/02/2020"));

        stud[8] = new Student("Ashwin","CSE",20, DateTime.Parse("10/12/2019"));

        stud[9] = new Student("Ashwin","EC",20, DateTime.Parse("10/12/2019"));

        stud[10] = new Student("Ashwin","CSE",20, DateTime.Parse("10/12/2019"));

        stud[11] = new Student("Ashwin","CSE",20, DateTime.Parse("10/12/2019"));

        stud[12] = new Student("Ashwin","EEE",20, DateTime.Parse("10/12/2019"));

        for(int i=0;i<13;i++)

        {

            studentlist.Add(stud[i]);

            if(stud[i].Department.ToLower().Equals("cse"))

                strength.CSEcount--;

            else if(stud[i].Department.ToLower().Equals("me"))

                strength.MEcount--;

            else if(stud[i].Department.ToLower().Equals("ce"))

                strength.CEcount--;

            else if(stud[i].Department.ToLower().Equals("ee"))

                strength.EEcount--;

            else if(stud[i].Department.ToLower().Equals("eee"))

                strength.EEEcount--;

            else if(stud[i].Department.ToLower().Equals("ec"))

                strength.ECcount--;

        }

        int choice = Convert.ToInt32(Console.ReadLine());

        //Start writing your logic here...

        if(choice==1)

        {

         for(int i=0;i<studentlist.Count;i++)

         {

            Console.WriteLine(stud[i].Name+" "+stud[i].Age+" "+stud[i].Department+" joined on "+stud[i].doj.ToString("d")); 

         }   

        }

        else if(choice==2)

        {

         string n=Console.ReadLine();

         string d=Console.ReadLine();

         int a=Convert.ToInt32(Console.ReadLine());

         DateTime doj=Convert.ToDateTime(Console.ReadLine());

         Student s=new Student(n,d,a,doj);

         d=d.ToLower();

         if(a>=20 && a<=35)

         {

           if(d.Equals("cse") && strength.CSEcount!=0)

           {

               studentlist.Add(s);

               Console.WriteLine("Student "+n+" was added successfully");

           }

           else if(d.Equals("ce") && strength.CEcount!=0)

           {

               studentlist.Add(s);

               Console.WriteLine("Student "+n+" was added successfully");

           }

            else if(d.Equals("me") && strength.MEcount!=0)

            {

                studentlist.Add(s);

                Console.WriteLine("Student "+n+" was added successfully");

            }

            else if(d.Equals("ee") && strength.EEcount!=0)

            {

                studentlist.Add(s);

                Console.WriteLine("Student "+n+" was added successfully");

            }

            else if(d.Equals("ec") && strength.ECcount!=0)

            {

                studentlist.Add(s);

                Console.WriteLine("Student "+n+" was added successfully");

            }

            else if(d.Equals("eee") && strength.EEEcount!=0)

            {

                studentlist.Add(s);

                Console.WriteLine("Student "+n+" was added successfully");

            }

            else

                Console.WriteLine("Department is full");

         }

         else

             Console.WriteLine("Student is too young or too old");

    }

}

}

​

//Create the required classes here..

public class Student

{

    public string Name{get;set;}

    public int Age{get;set;}

    public DateTime doj{get;set;}

    public string Department{get;set;}

    public Student(string n,string dept,int a,DateTime d)

    {

     this.Name=n;

     this.Age=a;

     this.doj=d;

     this.Department=dept;

    }

}

public class Strength

{

 public int CSEcount{get;set;}

 public int MEcount{get;set;}

 public int EEEcount{get;set;}

 public int CEcount{get;set;}

 public int ECcount{get;set;}

 public int EEcount{get;set;}

 public Strength(){

 CSEcount=5;

 MEcount=5;

 EEEcount=5;

 CEcount=5;

 ECcount=5;

 EEcount=5;

 }

}

​

​

​