public static MyLinkedListNode Reverse(MyLinkedListNode node)
{
MyLinkedListNode prev = null;
MyLinkedListNode current = node;
MyLinkedListNode next = null;
while (current != null)
{
next = current.next;
current.next = prev;
prev = current;
current = next;
}
return(prev);
}
public static MyLinkedListNode CreateTestLinkList_1()
{
//1(random-3)-->2-->3-->4(random-2)-->5
MyLinkedListNode node1 = new MyLinkedListNode(1);
MyLinkedListNode node2 = new MyLinkedListNode(2);
MyLinkedListNode node3 = new MyLinkedListNode(3);
MyLinkedListNode node4 = new MyLinkedListNode(4);
MyLinkedListNode node5 = new MyLinkedListNode(5);
node1.next = node2;
node2.next = node3;
node3.next = node4;
node4.next = node5;
node5.next = null;
return(node1);
}
public static MyLinkedListNode ImmutableClone(MyLinkedListNode head)
{
Dictionary <MyLinkedListNode, MyLinkedListNode> dict = new Dictionary <MyLinkedListNode, MyLinkedListNode>();
MyLinkedListNode temphead = null;
MyLinkedListNode newHead = null;
MyLinkedListNode origHead = head;
if (head != null)
{
temphead = new MyLinkedListNode(head.data);
newHead = temphead;
dict.Add(head, temphead);
}
while (head != null)
{
head = head.next;
MyLinkedListNode prev = temphead;
temphead = (head == null ? null : new MyLinkedListNode(head.data));
if (head != null)
{
dict.Add(head, temphead);
}
prev.next = temphead;
}
head = origHead;
temphead = newHead;
while (head != null)
{
if (head.random != null)
{
temphead.random = dict[head.random];
}
head = head.next;
temphead = temphead.next;
}
return(newHead);
}
static void Main(string[] args)
{
//MyLinkedListNode head = MyLinkedListNode.CreateTestLinkList_1();
//MyLinkedListNode.PrintLinkedList(head);
//MyLinkedListNode.PrintLinkedList(MyLinkedListNode.RotateLinkListAtKthNode(head, 4));
//int[] arr = {1,2 , 7,9,100};
//Console.WriteLine(Search.FindValOrNextSmallest(arr,99));
//TreeNode<int> node = TreeNode<int>.GetSampleTree();
//node.PrintInorderRecursively(node);
//Console.WriteLine();
//node.PrintLevelorderIteratively(node);
//node.PrintLevelorderRecursively(node);
//Console.WriteLine(TreeNode<int>.HeightOfTreeNode(node.right));
//Console.WriteLine(BitTest.itoa(4));
//TestMain();
//TestTreeConstruction();
//int[] arr = {2, 2,2, 7, 8, 9 };
//int[] arr = { 1,2, 3,4};
//Console.WriteLine(Search.RotateArrayPivot(arr, 0, arr.Length-1));
//Console.WriteLine(RecursionPractice.changePi("xpix"));
//Console.WriteLine(RecursionPractice.changePi("pipi"));
//Console.WriteLine(RecursionPractice.changePi("pip"));
//Console.WriteLine(RecursionPractice.pairStar("hello"));
//PrintArrayOfArray(Triangle.PrintPascalTriangle(4));
//PrintArray(StringTest.Permutations("ABC"));
//StringTest.PermutationsWithRepetetion("AABC");
//TestTree();
//Graph2.TestGraph();
//HeapTest();
//ClosestPairCalc.InternalMain();
//Console.WriteLine(RecursionPractice.countHi("xhixhxihihhhih"));
MyLinkedListNode.InternalMain();
Console.Read();
}
public static MyLinkedListNode RotateLinkListAtKthNode(MyLinkedListNode head, int k)
{
if ((head == null) || (k < 0))
{
return(null);
}
MyLinkedListNode origHead = head;
MyLinkedListNode last = head;
MyLinkedListNode prev = null;
MyLinkedListNode begin = last;
bool setHead = false;
while (last != null)
{
int i = 0;
while (i < k - 1 && last != null && last.next != null)
{
i++;
prev = last;
last = last.next;
}
prev.next = last.next;
if (begin != last)
{
last.next = begin;
}
if (!setHead)
{
origHead = last;
setHead = true;
}
last = prev.next;
prev = last;
begin = last;
}
return(origHead);
}
public MyLinkedListNode(int pData, MyLinkedListNode pNext, MyLinkedListNode pRand)
{
this.data = pData;
this.next = pNext;
this.random = pRand;
}
public MyLinkedListNode(int pData, MyLinkedListNode pNext)
{
this.data = pData;
this.next = pNext;
}