using System;

public class Program

{

    public static void Main()

    {

        Node n0 = null;

        Node n1 = new Node(1);

        Node n2 = new Node(2);

        Node n3 = new Node(3);

        Node n4 = new Node(4);

        n1.SetNext(n2);

        n2.SetNext(n3);

        n3.SetNext(n4);

        PrintList(n1);

        Delete(n4);

        PrintList(n1);

    }

    public static void Delete(Node del)

    {

        if (del == null || del.GetNext() == null)

        {

            return;

        }       

        Node temp = del.GetNext();

        del.SetData(temp.GetData());

        del.SetNext(temp.GetNext());

    }

    public static void PrintList(Node head)

    {

        Node temp = head;

        while(temp != null)

        {

            Console.Write(temp.GetData() + " ");

            temp = temp.GetNext();

        }

        Console.WriteLine("");

    }

}

​

​

​

public class Node

{

    int data;

    Node next;

    public Node(int d)

    {

        this.data = d;

    }   

    public void SetData(int d)

    {

        this.data = d;

    }

    public int GetData()

    {

        return this.data;

    }

    public void SetNext(Node n)

    {

        this.next = n;

    }

    public Node GetNext()

    {

        return this.next;

    }

}