【链表】83. 删除排序链表中的重复元素

 1 /**
 2  * Definition for singly-linked list.
 3  * struct ListNode {
 4  *     int val;
 5  *     ListNode *next;
 6  *     ListNode(int x) : val(x), next(NULL) {}
 7  * };
 8  */
 9 class Solution {
10 public:
11     ListNode* deleteDuplicates(ListNode* head) {
12         ListNode *cur = head;
13 
14         while (cur && cur->next)
15         {
16             if (cur->val == cur->next->val)
17             {
18                 cur->next = cur->next->next;
19             }
20             else
21             {
22                 cur = cur->next;
23             }
24         }
25 
26         return head;
27     }
28 };