为了记录NodeM的前驱节点,我们新建一个虚拟节点,使得该节点的next域指向head; 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ListNode pre=newListNode(0); 我们并不移动pre这个节点,因为在移动的过程中会改变pre存储的地址,我们再新建一个Mpre; 代码语言:javascript 代码运行次数:0 运行 AI代
或者用prev代替dummy.next 代码语言:javascript 代码运行次数:0 运行 AI代码解释 classSolution(object):# 迭代 defreverseList(self,head):""":type head:ListNode:rtype:ListNode""" dummy=ListNode(None)prev=dummy.nextwhilehead:# 终止条件是head=Null nextnode=head.next # nextnode是head后面的节点 head.n...
reverse linked list / 反转链表 functionListNode(val, next) {this.val= (val ===undefined?0: val)this.next= (next ===undefined?null: next) }consthead =newListNode(1,2); head.next=newListNode(2,3);// 递归varreverseList =function(head) {if(head ==null|| head.next==null) {returnhe...
1/**2* Definition for singly-linked list.3* function ListNode(val) {4* this.val = val;5* this.next = null;6* }7*/8/**9* @param {ListNode} head10* @return {ListNode}11*/12varreverseList =function(head) {13if(!head || !head.next){14returnhead;15}1617varres =newListNode(-...
javascript 单向链表反转 reverse 部分反转 leetcode: https://leetcode.com/problems/reverse-linked-list/ /** * Definition for singly-linked list. * function ListNode(val) { * this.val = val; * this.next = null; * } */ /** * @param {ListNode} head...
javascript:void(0) classSolution {publicListNode reverseBetween(ListNode head,intm,intn) {if(head ==null)returnnull; ListNode dummy=newListNode(-1); ListNode pre=dummy; dummy.next=head;for(inti = 0; i < m - 1; i++) { pre=pre.next; ...
Program to reverse a linked list in java publicclassLinkedList{//head object of class node will point to the//head of the linked listNode head;//class node to create a node with data and//next node (pointing to node)publicstaticclassNode{intdata;Node next;Node(intdata,Node next){this....
reversed part: 3->2->1->NULLin iteration 4:next=5 cur->next=3 prev=4 cur=5 thus reversed part: 4->3->2->1->NULLin iteration 5:next=NULL cur->next=4 prev=5 cur=NULL thus reversed part: 5->4->3->2->1->NULL iteration ends at cur is NULL linked list reversed, head at...
The linked list node is a simplestructwith a singlestringdata object and a pointer to the next node. We also have theaddNewNodefunction that takes two arguments,Node*and a reference to thestring. TheaddNewNodefunction is invoked multiple times in themainroutine to construct a new list object...
[LeetCode][JavaScript]Reverse Linked List II Reverse Linked List II Reverse a linked list from positionmton. Do it in-place and in one-pass. For example: Given1->2->3->4->5->NULL,m= 2 andn= 4, return1->4->3->2->5->NULL....