请使用一趟扫描完成反转。 说明: 1 ≤ m ≤ n ≤ 链表长度。 示例: 输入: 1->2->3->4->5->NULL, m = 2, n = 4 输出: 1->4->3->2->5->NULL 分析 给定初始链表为 1->2->3->4->5->NULL,如图 初始状态 我们需要找到第m个节点和第n个节点,分别记为MNode和 ** NNode** 同时也要...
(参考视频讲解:Leetcode力扣|206反转链表|递归|reverse linked list_哔哩哔哩_bilibili) # 定义一个链表节点类classListNode:def__init__(self,val=0,next=None):# 初始化函数self.val=val# 节点的值self.next=next# 指向下一个节点的指针# 将给出的数组转换为链表deflinkedlist(list):head=ListNode(list[0]...
Can you solve this real interview question? Reverse Linked List - Given the head of a singly linked list, reverse the list, and return the reversed list. Example 1: [https://assets.leetcode.com/uploads/2021/02/19/rev1ex1.jpg] Input: head = [1,2,3,
在LeetCode论坛发现了一个8ms的解法,不得不为其简洁高效合彩!具体程序如下: 1ListNode* reverseList(ListNode*head) {2ListNode *curr = head, *prev =nullptr;3while(curr) {4auto next = curr->next;5curr->next =prev;6prev = curr, curr =next;7}8returnprev;9} 2. Reverse Linked List II 题目...
Leetcode: Reverse Linked List II Reverse a linked list from position m to n. Do it in-place and in one-pass. For example: Given1->2->3->4->5->NULL, m = 2 and n = 4,return1->4->3->2->5->NULL. Note: Given m, n satisfy the following condition:1 ≤ m ≤ n ≤ ...
英文网站:92. Reverse Linked List II 中文网站:92. 反转链表 II 问题描述 Given theheadof a singly linked list and two integersleftandrightwhereleft <= right, reverse the nodes of the list from positionleftto positionright, and returnthe reversed list. ...
def reverseList(self, head): """ :type head: ListNode :rtype: ListNode """ dummy = ListNode(None) while head: # 终止条件是head=Null nextnode = head.next # nextnode是head后面的节点(保持下个节点信息不丢) head.next = dummy.next # dummy.next是Null,所以这样head.next就成为了Null ...
LeetCode: 92. Reverse Linked List II 题目描述 Reverse a linked list from position m to n. Do it in-place and in one-pass. For example: Given 1->2->3->4->5->NULL, m = 2 and n = 4, ...
给你单链表的头节点head,请你反转链表,并返回反转后的链表。 示例1: 输入:head = [1,2,3,4,5]输出:[5,4,3,2,1] 示例2: 输入:head = [1,2]输出:[2,1] 示例3: 输入:head = []输出:[] 提示: 链表中节点的数目范围是[0, 5000] ...
LeetCode-链表 链表(Linked List)是一种常见的基础数据结构,是一种线性表,但是并不会按线性的顺... raincoffee阅读 1,218评论 0赞 6 Linked List的复习总结 Single Linked List 相比较另一个基本的数据结构array,linked list有几个优势:尺寸... dol_re_mi阅读 8,197评论 0赞 3 穿越到金庸武侠世界中的囧...