public ListNode(int x) { val = x; }
public class MyLinkedList
public static void Main()
Console.WriteLine("Hello World");
public int Get(int index) {
while(index>=0 && loop!=null)
public void AddAtHead(int val) {
public void AddAtTail(int val) {
public void AddAtIndex(int index, int val) {
while(index>0 && current!=null)
public void DeleteAtIndex(int index) {
while(index>0&¤t!=null)
current.next=current.next.next;
current.next.val=current.next.next.val;