Leetcode 203 Remove Linked List Elements 链表

去掉链表中相应的元素值

 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* removeElements(ListNode* head, int val) {
12         if(!head) return NULL;
13         ListNode* now = head;
14         for(;now->next ;){
15             if(now->next->val == val){
16                 ListNode* next = now->next;
17                 now->next = next->next;
18                 delete next;
19             }
20             else  now = now->next;
21         }
22         if(head->val == val) {
23             ListNode* t = head;
24             head = head->next;
25             delete t;
26         }
27         return head;
28     }
29 };

 

posted @ 2016-03-17 21:13  Breeze0806  阅读(170)  评论(0)  编辑  收藏  举报