#include <iostream>
using namespace std;
template<typename T>
class dlseq
{
private:
struct Node
{
T elem;
Node * prev;
Node * next;
};
public:
c
原创
2012-12-22 15:38:57
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额，结论，没有搞定，最后通过守护进程先糊弄过去，这个项目过了证就扔了，所以目前不准备在修复，这里简单记录下我都尝试了那些东西corrupted double-linked list Aborted，谷歌翻译的结果就是 双链表损坏。
原创
2023-04-06 15:03:27
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把自己写的solution 1 和 闫老师写的solution2 都弄懂，会写。 bst变double linked list。recursion秒了，然后第一个follow up是把双链表变回去，要求balance。第二个follow up是在牺牲空间复杂度的情况下如何优化时间，想了个时间O(n)
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2018-08-16 23:49:00
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2评论
TreeNode head = null; TreeNode prev = null; public void inOrder(TreeNode root){ if(root == null) return; inOrder(root.left); if(prev == null){ head = root; }else{ prev.right = root...
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2018-08-16 23:52:00
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Linked List链表即是由节点（Node）组成的线性集合，每个节点可以利用指针指向其他节点。它是一种包含了多个节点的循环链表：每个节点指向下一个节点...
1,有关链表的概念作用：a,动态分配存储空间. b,根据需要随时开辟存储空间，灵活，方便。分类A, 单向链表 B,双向链表 C,循环链表思想a,链表的每一个结点都是结构体类型。包含两部分：（1）用户数据的成员分量（2）指向该结构体的指针变量，用来指向下一个结点
原创
2021-07-28 17:24:41
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输入: 1->2->3->4->5->NULL 输出: 5->4->3->2->1->NULL1、迭代法，超时 ListNode* reverseList(ListNode* head) { if(!head || !head->next)return head; ListNode dummy(-1); ListNode* prev = &dum...
原创
2022-01-17 16:49:26
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Given a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?CICT上有差不多的原题， 1. 初始化两个iterator都等于head， 设为a，b。2. 每次迭代，a走一步，b走两步。3. 如果a或者b走到null那就说明链表没有环，返回fa
原创
2013-11-01 02:55:11
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Link: https://leetcode.com/problems/linked-list-cycle/ Constraints: Idea Using the two pointers technique, slow and fast would point to the same node ...
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2021-08-08 12:11:00
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解法一： 一次遍历。装入vector，然后再一次遍历推断回文。 时间复杂度O(n)。空间复杂度O(n) 解法二： 找到链表中点，拆分后。逆转后半个链表，然后两个链表同一时候顺序遍历一次。 若链表长度为奇数。最末尾的元素能够忽略。 时间复杂度O(n)，空间复杂度O(1) /** * Definitio
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2017-04-23 10:30:00
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Given a linked list, determine if it has a cycle in it.
Follow up:
Can you solve it without using extra space?
/**
* Definition for singly-linked list.
* class ListNode {
* int val;
*
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2015-01-29 11:42:00
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Design your implementation of the linked list. You can choose to use the singly linked list or the doubly linked list. A node in a singly linked list
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2019-08-11 02:58:00
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Given a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?思路两个指针。一个每次
原创
2022-08-21 00:15:22
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Constraints: The number of nodes in the list is in the range [1, 100]. 1 <= Node.val <= 100IdeaUse two pointers. Slow pointer advance one node at a time, while fast pointer advances two n
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2021-08-08 12:04:00
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Doubly Linked List Your task is to implement a double linked list. Write a program which performs the following operations: insert x: insert an elemen
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2019-04-21 10:52:00
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Reverse a singly linked list.click to show more hints.Hint:A linked list can be reversed either iteratively or recursively. Could you implement both?I...
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2015-05-07 12:13:00
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Implement a function to check if a linked list is a palindrome. Implement a function to check if a linked list is a palindrome. Implement a function t
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2016-07-02 13:08:00
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Link: https://leetcode.com/problems/reverse-linked-list/ Constraints: The number of nodes in the list is the range [0, 5000]. -5000 <= Node.val <= 500 ...
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2021-08-08 10:58:00
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Link: https://leetcode.com/problems/reorder-list/ Idea Find the middle point of the list and divide the list into two parts by setting mid.next = null ...
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2021-08-08 21:08:00
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