刷题记录-剑指offer18.2：删除链表中重复的节点

public class Solution {
    public ListNode deleteDuplication(ListNode pHead)
    {
        if(pHead == null||pHead.next == null)
            return pHead;
        if(pHead.val == pHead.next.val){
            while(pHead.next.next!=null&&pHead.next.val == pHead.next.next.val){
                pHead.next = pHead.next.next;
            }
            return deleteDuplication(pHead.next.next);
        }else{
            pHead.next = deleteDuplication(pHead.next);
        }
        return pHead;
    }
}