}/// <summary>
/// this method is to display
/// </summary>
/// <param name="slist"></param>
static void Display(VarunList slist)
{
Node temp = slist.head;
while (temp != null)
{
Console.WriteLine(temp.data);
temp = temp.next;
}
}/// <summary>
/// <summary>
/// this method is used to know the last node
/// </summary>
/// <param name="singlyList"></param>
/// <returns></returns>
static Node GetLastNode(VarunList singlyList)
{
Node temp = singlyList.head;
while (temp.next != null)
{
temp = temp.next;
}
return(temp);
}/// <summary>
}/// <summary>
/// this deals with inserting inputs and diaplay the list
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
VarunList slist = new VarunList();
InsertLast(slist, 10);
InsertLast(slist, 20);
InsertLast(slist, 30);
Display(slist);
DeletebyKey(slist, 10);
Display(slist);
}
}/// <summary>
/// this method is used to insert the node in last
/// </summary>
/// <param name="singlyList"></param>
/// <param name="new_data"></param>
static void InsertLast(VarunList singlyList, int new_data)
{
Node new_node = new Node(new_data);
if (singlyList.head == null)
{
singlyList.head = new_node;
return;
}
Node lastNode = GetLastNode(singlyList);
lastNode.next = new_node;
}
}/// <summary>
/// this method is used to delete the node by taking key from the user
/// </summary>
/// <param name="singlyList"></param>
/// <param name="key"></param>
static void DeletebyKey(VarunList singlyList, int key)
{
Node temp = singlyList.head;
Node prev = null;
if (temp != null && temp.data == key)
{
singlyList.head = temp.next;
return;
}
while (temp != null && temp.data != key)
{
prev = temp;
temp = temp.next;
}
if (temp == null)
{
return;
}
prev.next = temp.next;
}/// <summary>
