linked专题

[LeetCode] 234. Palindrome Linked List

题：https://leetcode.com/problems/palindrome-linked-list/description/ 题目 Given a singly linked list, determine if it is a palindrome. Example 1: Input: 1->2Output: false Example 2: Input: 1->2->

Insertion Sort Integer Array Insertion Sort Linked List

Sort Integer Array using Insertion sort. //********************************************************************************************************/* Insertion Sort 原理：就是前面的sort部分全部是相对值，从后面拿一个元素，然后跟

Merge Sort Array and Merge Sort Linked List

Merge Sort Array: 看完stanford的 CS106B的video，https://www.youtube.com/watch?v=LlNawf0JeF0&list=PLnfg8b9vdpLn9exZweTJx44CII1bYczuk&index=55 醍醐灌顶； public class Solution {/*** @param A: an integer array* @

Delete the Middle Node of a Linked List

You are given the head of a linked list. Delete the middle node, and return the head of the modified linked list. The middle node of a linked list of size n is the ⌊n / 2⌋th node from the start using

数据结构-线性结构：链表（Linked List）【基于自定义Node节点】【真正的动态数据结构，不需要处理固定容量问题】【最简单的动态数据结构】【单向链表、单向循环链表、双向链表、双向循环链表】

顺序表(动态数组) V.S 链表链表失去了顺序表(动态数组)随机读取的优点，同时链表由于增加了结点的指针域，空间开销比较大，但对存储空间的使用要相对灵活。操作链表顺序表(动态数组)访问元素O(n)O(1)在头部插入/删除O(1)O(n)在尾部插入/删除O(n)O(1)在中间插入/删除O(n)O(n)修改操作O(n) 注意：“在中间插入/删除”操作虽然表面看起来复杂度都是 O

Leetcode78: Linked List Cycle II

Given a linked list, return the node where the cycle begins. If there is no cycle, return null. Note: Do not modify the linked list. Follow up: Can you solve it without using extra space? 大

Leetcode139: Reverse Linked List II

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, return 1->4->3->2->5->NULL. Note: Given m, n satisfy the fol

leetcode--Linked List Cycle--判断链表是否有环

Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 这个题目用快慢指针来做，重点在于代码怎么实现的简洁方便理解。这里用快指针来判断链表是不是有NULL，没有NULL那再继续走，看是否能与慢指针遇上

398. Random Pick Index 382. Linked List Random Node 蓄水池原理

蓄水池原理应用：随机返回n个元素中的某个元素，从0开始遍历这n个元素用count记录遍历过得元素数目（符合要求的元素在数，比如数值等于target的数组索引），如果random(count)==0 则选中这个元素。可以证明在遍历的过程中随着遍历元素数目的增加 random（count）==0 的几率是随机均等的 Given an array of integers

Linked List Cycle II--找出单向链表中环的起点

原题： Given a linked list, return the node where the cycle begins. If there is no cycle, returnnull. =>找到单向链表的环的起点，若没有环，返回null Follow up: Can you solve it without using extra space? =>能否不使用额外的空间。 /*

Delete Node in a Linked List问题及解法

问题描述： Write a function to delete a node (except the tail) in a singly linked list, given only access to that node. Supposed the linked list is 1 -> 2 -> 3 -> 4 and you are given the third node wit

Reverse Linked List II问题及解法

问题描述： Reverse a linked list from position m to n. Do it in-place and in one-pass. 示例: Given 1->2->3->4->5->NULL, m = 2 and n = 4, return 1->4->3->2->5->NULL. 问题分析：将m到n间的结点顺序反转，然后将1到m-1 、

Split Linked List in Parts问题及解法

问题描述： Given a (singly) linked list with head node root, write a function to split the linked list into k consecutive linked list "parts". The length of each part should be as equal as possible:

02-1. Reversing Linked List (25) PAT DBS打基础之练习

Given a constant K and a singly linked list L, you are supposed to reverse the links of every K elements on L. For example, given L being 1→2→3→4→5→6, if K = 3, then you must output 3→2→1→6→5→4; if K

Reverse Linked List（反转链表）

描述： Reverse a singly linked list. A linked list can be reversed either iteratively or recursively. Could you implement both? 分析：首先定义一个指向当前节点前一节点的指针pre，初值为null，只要当前节点不为空就循环执行下面四步操作，否则直接跳出循环，返回p

leetcode No206. Reverse Linked List(C++Python)

Question： Reverse a singly linked list. 翻转链表 Algorithm： 2017/3/10之前写的都是写什么呀。。。。来更新一下解法非递归：Assume that we have linked list 1 → 2 → 3 → Ø, we would like to change it to Ø ← 1 ← 2 ← 3. 重复以下过程

leetcode No142. Linked List Cycle II

Question： Given a linked list, return the node where the cycle begins. If there is no cycle, return null. Algorithm：首先fast每次走两步，slow每次走1步，如果fast走到NULL，说明没有环，如果fast和slow相遇，说明有环，假设fast和slow在Z

leetcode No160. Intersection of Two Linked Lists

Question: Write a program to find the node at which the intersection of two singly linked lists begins. For example, the following two linked lists: A: a1 → a2↘c1 → c2 → c3↗

MOOC 数据结构 | 2. 线性结构（6）：习题选讲---Reversing Linked List

题目 02-线性结构3 Reversing Linked List (25 分) Given a constant K and a singly linked list L, you are supposed to reverse the links of every K elements on L. For example, given L being 1→2→3→4→5→6, if K=3

[LeetCode] Linked List Cycle II

Given a linked list, return the node where the cycle begins. If there is no cycle, return null. Follow up: Can you solve it without using extra space? 解题思路设链表长度为n，头结点与循环节点之间的长度为k。定义两个指针slow和fast，

[LeetCode] Reverse Linked List II

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, return 1->4->3->2->5->NULL. Note: Given m, n satisfy the follo

Spyder启动黑屏，终端显示QOpenGLShaderProgram::uniformLocation(qt_Matrix): shader program is not linked QOpenG

cd /etc/ld.so.conf.d 目录中有 i386-linux-gnu_GL.conf and x86_64-linux-gnu_GL.conf等文件 cat x86_64-linux-gnu_GL.conf /usr/lib/nvidia-340 /usr/lib32/nvidia-340 但是文件i386-linux-gnu_GL.conf 是空

LeetCode 题解(216) : Intersection of Two Linked Lists

题目： Write a program to find the node at which the intersection of two singly linked lists begins. For example, the following two linked lists: A: a1 → a2↘c1 → c2 → c3↗ B:

*Leetcode 234. Palindrome Linked List

https://leetcode.com/problems/palindrome-linked-list/description/ 有点意思。。 /*** Definition for singly-linked list.* struct ListNode {* int val;* ListNode *next;* ListNode(int x) : val(x),

[LeetCode] 234. Palindrome Linked List

题目内容 https://leetcode-cn.com/problems/palindrome-linked-list/ Given a singly linked list, determine if it is a palindrome. Example 1:Input: 1->2Output: falseExample 2:Input: 1->2->2->1Output: tr

[LeetCode] 206. Reverse Linked List

题目内容 https://leetcode-cn.com/problems/reverse-linked-list/ Reverse a singly linked list. Example:Input: 1->2->3->4->5->NULLOutput: 5->4->3->2->1->NULL 题目思路这个就是基本的尾插法构建链表。程序代码 # Definitio