using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace ConsoleApplication2

{

    public class Program

    {

        public static void Main(string[] args)

        {

            /* ข้อ 2

             * จาก List<int> ที่กำหนดให้

             * จงหาจำนวนที่มีค่าสูงสุด 2 อันดับแรก โดยไม่ใช้คำสั่ง .Min() .Max() .Sort() .OrderBy() .OrderByDescending()

             * ตัวเลขที่ค่าเท่ากัน ให้นับเป็นคนละตัวกัน เช่น Top2Max([ 99 , 98 , 99 ]) ได้ [ 99 , 99 ]

            */

            #region Example data

            List<List<int>> listSampleNumber = new List<List<int>>()

            {

                new List<int>() { 96, 35 ,54, 11, 0, 99, 103, -99, 54, 54, 95},     // expected => [ 103 , 99 ]

                new List<int>() { 96, 108, 52, -0, 58, 103, -99, 52, 54, 54, 95},   // expected => [ 108 , 103 ]

                new List<int>() { 320, 2, 96, 108, 103, 1, -99, 52, 54, 54, 312},   // expected => [ 320 , 312 ]

                new List<int>() { 320, 58, 103 , 1 ,-99 , 500 , 54 , 54 , 51},      // expected => [ 500 , 320 ]

                new List<int>() { -1, 0, 0},    // expected => [ 0 , 0 ]

                new List<int>() { 0, -1, 0},    // expected => [ 0 , 0 ]

                new List<int>() { 0, 0, -1},    // expected => [ 0 , 0 ]

                new List<int>() { -1, 0, -1},   // expected => [ 0 , -1 ]

                new List<int>() { 0, -1, -1},   // expected => [ 0 , -1 ]

                new List<int>() { -1, -1, 0 },  // expected => [ 0 , -1 ]

                new List<int>() { 0 , 2 },      // expected => [ 2 , 0 ]

                new List<int>() { 2 , 0 },      // expected => [ 2 , 0 ]

                new List<int>() { 5 },          // expected => [ 5 ]

                new List<int>() { },            // expected => [  ]

                new List<int>() { int.MinValue , 0 , int.MinValue },                // expected => [  0 , -2147483648 ]

            };

​

            #endregion

​

            foreach (var sampleNumbers in listSampleNumber)

            {

                Console.Write("######################################\n");

                Console.Write("Top 2 Max of [ {0} ] \nis ", String.Join(" , ", sampleNumbers));

                var top2Max = GetTop2Max(sampleNumbers);

                Console.Write("[ {0} ]\n\n", String.Join(" , ", top2Max));

            }

        }

​

        static List<int> GetTop2Max(List<int> number)

        {

            List<int> top2Max = new List<int>();

            //เขียนโค๊ดตรงนี้เลยจร้า

            int frist =0;

            int sec = 0;

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

            {

                if(i == 0)

                {

                    frist = number[i];

                }

                else if(i == 1)

                {

                    if(number[i] < number[i-1])

                        sec = number[i];

                    else

                    {

                        frist = number[i];

                        sec = number[i-1];

                    }

                }

                else

                {

                    if(number[i] >= frist)

                    {

                        if( number[i] == frist)

                        {

                            sec = number[i] ;

                        }

                        else

                        {

                            sec = frist;

                            frist = number[i];

                        }

                    }

                    else if(number[i] > sec)

                    {

                        sec = number[i];

                    }

                }

            }

​

            if(number.Count() >= 1)

                top2Max.Add(frist);

            if(number.Count() >= 2)

                top2Max.Add(sec);

            return top2Max;

        }

​

    }

}