1 #include <iostream> 2 #include <malloc.h> 3 using namespace std; 4 5 struct ListNode { 6 int val; 7 ListNode *next; 8 ListNode(int x) : val(x), next(NULL) {} 9 }; 10 /*在链表的末端插入新的节点,建立链表*/ 11 ListNode *CreateList(int n) 12 { 13 ListNode *head; 14 L...
The basic idea of this recursive solution is to reverse all the following nodes afterhead. Then we need to setheadto be the final node in the reversed list. We simply set its next node in the original list (head -> next) to point to it and sets itsnextto beNULL. Solution 2 () c...
code例如以下: classSolution{public:ListNode*reverseBetween(ListNode*head,intm,intn){if(head==NULL||m<0||n<0)returnhead;if(head->next==NULL||m==n)returnhead;ListNode*head2=NULL,*pre,*cur,*temp=head;for(inti=0;i<n+1;i++){if(i==m-2)head2=temp;elseif(i==m-1)cur=temp;else...
https://leetcode.com/problems/reverse-linked-list/ 题目: Reverse a singly linked list. Hint: A linked list can be reversed either iteratively or recursively. Could you implement both? 思路: 头插法建立链表 算法: 1. public ListNode reverseList(ListNode head) { 2. ListNode p = head, q, t...
Leetcode 92题反转链表 II(Reverse Linked List II) 反转链表可以先看这篇文章:LeetCode 206题 反转链表(Reverse Linked List) 题目链接 https://leetcode-cn.com/problems/reverse-linked-list-ii/ 题目描述 反转从位置 m 到 n 的链表。请使用一趟扫描完成反转。 说明: 1 ≤ m ≤ n ≤ 链表长度。 示例...
王几行xing:【Python-转码刷题】LeetCode 203 移除链表元素 Remove Linked List Elements 提到翻转,熟悉Python的朋友可能马上就想到了列表的 reverse。 1. 读题 2. Python 中的 reverse 方法 list1 = list("abcde") list1.reverse() list1 [Out: ] ['e', 'd', 'c', 'b', 'a'] 2.1 reverse 在...
LeetCode 206题 反转链表(Reverse Linked List) /** Definition for singly-linked list. public class ListNode { int val; ListNode next; ListNode(int x) { val = x; } } */classSolution{publicListNodereverseList(ListNode head){ListNode pre=null;ListNode next=null;while(head!=null){next=head....
问题链接英文网站:92. Reverse Linked List II中文网站:92. 反转链表 II问题描述Given the head of a singly linked list and two integers left and right where left <= right, reverse the nodes of the l…
LeetCode Reverse a singly linked list. Example: Input:1->2->3->4->5->NULL Output:5->4->3->2->1->NULL Follow up: A linked list can be reversed either iteratively or recursively. Could you implement both? 问题 力扣 反转一个单链表。
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