public void LLCanAppend(object value)
{
Node node1 = new Node(0, 7);
Node node2 = new Node(0, "cat");
Node node3 = new Node(0, "dog");
Node node4 = new Node(0, value);
LinkdList list = new LinkdList(node1);
list.Append(node2);
list.Append(node3);
list.Append(node4);
Assert.Equal(value, list.Find(value).Value);
}
public void CannotFindNthNumberFromEnd(int value)
{
Node node1 = new Node(10);
Node node2 = new Node(20);
Node node3 = new Node(30);
Node node4 = new Node(40);
Node node5 = new Node(50);
LinkdList list = new LinkdList(node1);
list.Append(node2);
list.Append(node3);
list.Append(node4);
list.Append(node5);
Assert.Equal("Your input is bad", NthNodeFromEnd(value));
}
public void CanFindNthNumberFromEnd()
{
Node node1 = new Node(10);
Node node2 = new Node(20);
Node node3 = new Node(30);
Node node4 = new Node(40);
Node node5 = new Node(50);
LinkdList list = new LinkdList(node1);
list.Append(node2);
list.Append(node3);
list.Append(node4);
list.Append(node5);
Assert.Equal(20, NthNodeFromEnd(3));
}
/// <summary>
/// Merge two link lists by zippering them together. Every other node will be a node from the second given LL
/// </summary>
/// <param name="LL1">The LL that will be traversed and operated on</param>
/// <param name="LL2">The LL that will be zippered into the first LL</param>
/// <returns>returns the head node of the merged LL</returns>
public static Node MergeLists(LinkdList LL1, LinkdList LL2)
{
Node temp = LL2.Head.Next;
LL1.Current = LL1.Head;
while (LL1.Current.Next.Next != null)
{
LL1.AddAfter(LL2.Head, LL1.Current);
if (temp == null)
{
break;
}
LL2.Head = temp;
temp = LL2.Head.Next;
LL1.Current = LL1.Current.Next.Next;
}
LL1.AddAfter(LL2.Head, LL1.Current);
LL2.Head = temp;
LL1.Append(LL2.Head);
LL2.Head = null;
return(LL1.Head);
}
static void Main(string[] args)
{
Node node1 = new Node("A");
Node node2 = new Node("B");
Node node3 = new Node("C");
Node node4 = new Node("D");
LinkdList list = new LinkdList(node1);
list.Append(node2);
list.Append(node3);
list.Append(node4);
Console.WriteLine("Original Linked List:");
list.Print();
Console.WriteLine("\nReversed Linked List:");
ReverseLL(list).Print();
}
public void CanMergeListsIfLL2IsLongerThanLL1()
{
Node node1 = new Node(10);
Node node2 = new Node(20);
Node node3 = new Node(30);
Node node4 = new Node(40);
Node node5 = new Node(50);
LinkdList LL1 = new LinkdList(node1);
LL1.Append(node2);
LL1.Append(node3);
LL1.Append(node4);
LL1.Append(node5);
Node node6 = new Node(60);
Node node7 = new Node(70);
Node node8 = new Node(80);
Node node9 = new Node(90);
Node node10 = new Node(100);
Node node11 = new Node(110);
Node node12 = new Node(120);
LinkdList LL2 = new LinkdList(node6);
LL2.Append(node7);
LL2.Append(node8);
LL2.Append(node9);
LL2.Append(node10);
LL2.Append(node11);
LL2.Append(node12);
Assert.Equal(LL1.Head, MergeLists(LL1, LL2));
}
public static void Main(string[] args)
{
Node node1 = new Node(10);
Node node2 = new Node(20);
Node node3 = new Node(30);
Node node4 = new Node(40);
Node node5 = new Node(50);
LinkdList LL1 = new LinkdList(node1);
LL1.Append(node2);
LL1.Append(node3);
LL1.Append(node4);
LL1.Append(node5);
Node node6 = new Node(60);
Node node7 = new Node(70);
Node node8 = new Node(80);
Node node9 = new Node(90);
Node node10 = new Node(100);
Node node11 = new Node(110);
Node node12 = new Node(120);
LinkdList LL2 = new LinkdList(node6);
LL2.Append(node7);
LL2.Append(node8);
LL2.Append(node9);
LL2.Append(node10);
LL2.Append(node11);
LL2.Append(node12);
Console.WriteLine("Linked List 1:");
LL1.Print();
Console.WriteLine("\nLinked List 2:");
LL2.Print();
Console.WriteLine("\nMerged Link Lists:");
MergeLists(LL1, LL2);
LL1.Print();
}
/// <summary>
/// Finds the value of the nth node from the end of a LL
/// </summary>
/// <param name="n">nth number</param>
/// <returns>returns the value of the nth node from the end of the LL</returns>
public static object NthNodeFromEnd(int n)
{
Node node1 = new Node(10);
Node node2 = new Node(20);
Node node3 = new Node(30);
Node node4 = new Node(40);
Node node5 = new Node(50);
LinkdList list = new LinkdList(node1);
list.Append(node2);
list.Append(node3);
list.Append(node4);
list.Append(node5);
int counter = 0;
list.Current = list.Head;
while (list.Current.Next != null)
{
list.Current = list.Current.Next;
counter++;
}
if (n < 0 || n > counter)
{
Exception ex = new Exception("Your input is bad");
return(ex.Message);
}
list.Current = list.Head;
for (int i = 0; i < (counter - n); i++)
{
list.Current = list.Current.Next;
}
return(list.Current.Value);
}
static void Main(string[] args)
{
Console.WriteLine("Hello World!\n");
Node node1 = new Node(0, 7);
Node node2 = new Node(0, "cat");
Node node3 = new Node(0, "dog");
Node node4 = new Node(0, 14);
Node node5 = new Node(0, "bird");
LinkdList list = new LinkdList(node1);
list.Add(node2);
list.Append(node3);
list.AddBefore(node4, node1);
list.AddAfter(node5, node3);
list.Print();
object searchTerm = 14;
Node foundNode = list.Find(searchTerm);
Console.WriteLine($"You searched for {searchTerm} and found {foundNode.Value}");
}