标签:gif rev struct class div click head show hid
反转一个单链表。
示例:
输入: 1->2->3->4->5->NULL 输出: 5->4->3->2->1->NULL
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* reverseList(ListNode* head) { 12 ListNode *newHead=NULL; 13 while(head){ 14 ListNode *next=head->next; 15 head->next=newHead; 16 newHead=head; 17 head=next; 18 } 19 return newHead; 20 } 21 };
标签:gif rev struct class div click head show hid
原文地址:https://www.cnblogs.com/mcq1999/p/11717051.html