using System;

​

namespace ConsoleApp1

{

    class Program

    {

        static void Main(string[] args)

        {

            int[] arr = { 4, 5, 6, 1, 4, };

            Console.WriteLine(EvenOddSum(arr));

            DividesSum(arr);

            Node<int> node = LstfromArr(arr); 

​

        }

        public static Node<T> LstfromArr<T>(T[] arr)

        {

            Node<T> start = new Node<T>(arr[0]);

            Node<T> last = start;

            for (int i = 1; i < arr.Length; i++)

            {

                last.SetNext(new Node<T>(arr[i]));

                last = last.GetNext();

            }

            return start;

        }

​

        public static int EvenOddSum(int[] arr, int i=0, int evenSum=0, int oddSum=0)

        {

            if(i == arr.Length)

            {

                if ((evenSum + oddSum) % 2 == 0)

                    return evenSum;

                else

                    return oddSum;

            }

            if (arr[i] % 2 == 0)

                evenSum += arr[i];

            else

                oddSum += arr[i];

            return EvenOddSum(arr, i + 1, evenSum, oddSum);

        } 

​

        public static int DividesSum(int[] arr, int sum=0, int i=0)

        {

            if (i == arr.Length)

                return sum;

​

            sum = DividesSum(arr, sum + arr[i], i + 1); 

​

            if (sum % arr[i] == 0) 

                Console.WriteLine(arr[i]);

​

            return sum;

        }  

​

        public static Node<int> RemoveDups(Node<int> list)

        {

            Node<int> newList = new Node<int>(list.GetValue());

            Node<int> ogPos = list.GetNext();

            Node<int> newPos = newList; 

            while (ogPos != null)

            {

                if(newPos.GetValue() != ogPos.GetValue())

                {

                    newPos.SetNext(ogPos.GetNext());

                }

                ogPos = ogPos.GetNext();

            } 

            return

​

        }

​

​

    }

}

​