LeetCode 删除排序链表中的重复元素

题目

代码

/** 
  * Definition for singly-linked list. 
  * public class ListNode { 
  *     public int val;
  *     public ListNode next;
  *     public ListNode(int x) { val = x; } 
  * } 
  */
public class Solution 
{    
    public ListNode DeleteDuplicates(ListNode head) 
    {        
        ListNode temp = head;        
        while (temp != null)       
        {            
            while (temp.next != null && temp.val == temp.next.val)                
                temp.next = temp.next.next;            
            temp = temp.next;        
        }         
        return head;   
    }
}