题解 | #删除链表中重复的结点#

import java.util.*;
/*
 public class ListNode {
    int val;
    ListNode next = null;

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