using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        List<PersonData>  data = GetPersonDatas(20);

        //Questions 

        //1. Explain what GetPersonDatas is doing 

        //2. Create another as in the main Program and name it as: (YourReturnType) GetDataSummary(List<PersonData> data) *data parameter here will comes from GetPersonDatas(x)

        //3. First Exercise: Create A return that will result AgeGroup and the TotalNumber of Person belong in the Age Group

        //Example:  GetPersonDatas(10)

        //Person A : Age 1 

        //Person B : Age 2 

        //Person C : Age 3 

        //Person D : Age 4 

        //Person E : Age 4 

        //Person F : Age 5 

        //Person G : Age 5 

        //Person H : Age 6

        //Person I : Age 6

        //Person J : Age 6 

        //Result from Example Data

        //AgeGroup | Count

        //1        | 1

        //2        | 1

        //3        | 1 

        //4        | 2 

        //5        | 2 

        //6        | 3          

        //4.Second Exercise: Refactor the method in #2 so that the Age Group will  have a Maximum of 5 Groups

        //   3.1 If the Age Group is equal or less than 5, then that it will return as it is.  

        //   3.2 If the Age Group is greater than 5. Then get the top 4 and another Others Group where Count will be the total of the groups that does not belong in the top 4

        //   3.3 The criteria for Getting the top 4: The Highest Count first and then lowest Age

        //Result using Example Data on #2

        //AgeGroup | Count

        //Others   | 2           --- Others is AgeGroup 3 + AgeGroup 2

        //1        | 1

        //4        | 2 

        //5        | 2 

        //6        | 3 

    }

    public static List<PersonData> GetPersonDatas(int number) 

    {

        List<PersonData> data = new List<PersonData>();

        var rand = new Random();

​

        for (var i = 0; i < number; i++)

        {

            data.Add(new PersonData()

                     {

                         FullName = "Person " + i,

                         Age = rand.Next(1, 20)

​

                     });

        }

​

        return data;

    }

}

​

 public class PersonData

 {

     public string FullName { get; set; }

     public int Age { get; set; }

 }