Undirected

邓公《数据结构》第六章习题总结

邓公《数据结构》第六章图（b1）邻接矩阵–作业Q1Agraphwithan(undirected)edgebetweenanytwoverticesiscalledacompletegraph,andacompletegraphcontainingnverticesisrepresentedbyKnWhichofthefollowingfiguresmustnotbeaplan
xhlbetter·2024-01-10 09:14

力扣labuladong一刷day46天并查集

990.等式方程的可满足性一、323.无向图中连通分量的数目题目链接：https://leetcode.cn/problems/number-of-connected-components-in-an-undirected-graph
当年拼却醉颜红·2024-01-01 19:48

15、指针三剑客之三：图（结合LeetCode 785、210、1059、1135、797学习）（1059、1135需Plus会员）

作者学习算法的教材是LeetCode101有需要的同学直接GitHub搜索LeetCode101即可**图一般分为有向（directed）或无向（undirected），有循环（cyclic）或无循环（
_神仙鱼_·2023-10-23 19:13

LeetCode 2316. 统计无向图中无法互相到达点对数：：广度优先搜索（BFS）

统计无向图中无法互相到达点对数：广度优先搜索（BFS）力扣题目链接：https://leetcode.cn/problems/count-unreachable-pairs-of-nodes-in-an-undirected-graph
Tisfy·2023-10-21 16:19

Connected Component in Undirected Graph

DescriptionFindconnectedcomponentinundirectedgraph.Eachnodeinthegraphcontainsalabelandalistofitsneighbors.(Aconnectedcomponentofanundirectedgraphisasubgraphinwhichanytwoverticesareconnectedtoeachother
鸭蛋蛋_8441·2023-08-21 14:10

Matlab中图的最短路径

前言：图的基本概念：若想简单绘制图可以利用此网站：左上角Undirected/Directed是无向图/有向图左边0-index，1-index为0下标，1下标。
Wei&Yan·2023-08-05 20:15

论文笔记——Influence Maximization in Undirected Networks

InfluenceMaximizationinUndirectedNetworksContributionMotivationPreliminariesNotationsMainresultsReductiontoBalancedOptimalInstancesProvingTheorem3.1forBalancedOptimalInstancesContribution好久没发paper笔记了，
7:45am·2023-07-30 10:34

Finding all cycles in undirected graphs

Ineedaworkingalgorithmforfindingallsimplecyclesinanundirectedgraph.IknowthecostcanbeexponentialandtheproblemisNP-complete,butIamgoingtouseitinasmallgraph(upto20-30vertices)andthecyclesaresmallinnumber
zlc_abc·2023-06-20 23:38

springboot2.7.10整合neo4j -- 关系双向绑定(UNDIRECTED)

背景依赖springboot版本2.7.10本地neo4j安装的版本：4.4.19依赖如下：org.springframework.bootspring-boot-starter-data-neo4jspringboot整合neo4j官网地址：AccessingDatawithNeo4j遇到的问题：按照官网向导本地运行后，得不到正确的关系neo4j得到的数据如下：greg=personReposi
yangqin@1225·2023-04-19 19:47

LeetCode力扣刷题——指针三剑客之三：图

图通常分为有向（directed）或无向（undirected），有循环（cyclic）或无循环（acyclic），所有节点相连（connected）或不相连（disconnected）。
指北针_N·2023-03-13 18:18

图-概念和定理, 2022-07-01

有向(directed)：图中的边或者有向或者无向(undirected)。如果两个顶点u和v的连接是有序的，从u指向v，则称该边(u,v)有向。如果u和v无序，则边(u,v)无向。
Mc杰夫·2023-03-09 17:16

PyG笔记

1.如果把pyg转换成networkx时选择转换成无向图(to_undirected=True)，则pyg的每一组edge_index一定要先写index小的node，再写index大的node，否则该条边会被直接忽略掉
cunane·2022-11-24 17:31

Number of Connected Components in an Undirected Graph

1对于unionfind，如果两个在一个set里，就返回0，如果不在一个set里，就将他们俩union，同时返回12count初始化成n，因为初始时是n个set3遍历edges里面的所有edge上的两个node，如果此两个node是连接的，count不变化；如果不是连接的，则union返回1，count减1，同时union这两个node
云端漫步_b5aa·2022-02-08 20:10

Number of Connected Components in an Undirected Graph (Leetcode 323)

基本的graph搜索题1：DFSclassSolution{public:intcountComponents(intn,vector>&edges){if(edges.empty())returnn;vector>graph(n,vector());intcnt=0;for(autoit:edges){graph[it.first].push_back(it.second);graph[it.s
stepsma·2021-05-03 11:37

DreamGrid has just found an undirected simple graph with $n$ vertices and no edges (that's to say, i

DreamGridhasjustfoundanundirectedsimplegraphwithnnnverticesandnoedges(that’stosay,it’sagraphwithnnnisolatedvertices)inhisrightpocket,wheretheverticesarenumberedfrom1tonnn.Nowhewouldliketoperformqqqope
a千里快哉风·2020-09-14 09:05

Shortest Path in Undirected Graph 之python 和 java 实现

个人博客：http://xurui.club/2018/09/11/interview-2/分享一些学习心得最近没有动力学习，今天看到小宝贝那么努力学注会，顿感羞愧。虽然收到了offercall，但还没有确定之前，还是好好刷刷题。既然有自己的目标，就应该给出自己的态度。814.无向图中的最短路径给出一个undirectedgraph，其中每条边的长度为1，并从图中给出两个节点。我们需要找到给定两个
by雷影·2020-08-16 08:07

无向图1(UNDIRECTED GRAPHS)

图和图像的无关性Adrawinggivesusintuitionaboutthestructureofthegraph;butthisintuitioncanbemisleading,becausethegraphisdefinedindependentlyofthedrawing.Forexample,thetwodrawingsatleftrepresentthesamegraph,becau
baibaibai66·2020-08-13 13:14

树直径、二叉树直径 Tree diameter （Longest path in an undirected tree）

树直径问题其实就好像在一个无向无环图中找一条最长的路径，核心思想其实也很简单：首先从任意一个节点开始BFS找距离最远能到达的点（以该点作为根节点树的最深层），假设到达点为V，再以V为根节点找最远能到达的点（即以V为根节点树的最深层），两次BFS即可解决。按照上述方法，其实最开始任意选的那个点就是最长路径中的一个节点而已，这个节点可能是最长路径的端点也有可能是路径中的一点。代码：#includeus
Southan97·2020-08-12 16:43

Number of Connected Components in an Undirected Graph

323.NumberofConnectedComponentsinanUndirectedGraph方法1:UnionFind方法2:dfsGivennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsin
无差别刷题·2020-07-09 00:48

Leetcode 323: Number of Connected Components in an Undirected Graph

Givennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Example1:Input:n=5andedges=[[0,1],[1,2],[3,4]]03||1-
teemo_must_die·2020-07-08 23:02

LeetCode323 Number of Connected Components in an Undirected Graph

Input:n=5andedges=[[0,1],[1,2],[3,4]]03||1---24Output:2itisquiteeasytoundersttandithisproblem.now,howtosolveit?ifyoureallythinkaboutthis,itisaclassic-classicunionfindproblemjustunionandfind.reciteitli
Tech In Pieces·2020-07-08 22:24

无向图中的连通区域的个数 $ Number of Connected Components in an Undirected Graph...

★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★➤微信公众号：山青咏芝（shanqingyongzhi）➤博客园地址：山青咏芝（https://www.cnblogs.com/strengthen/）➤GitHub地址：https://github.com/strengthen/LeetCode➤原文地址：https://www.cnblogs.com/streng
weixin_30832983·2020-07-08 14:20

Number of Connected Components in an Undirected Graph

Givennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Example1:03||1---24Givenn=5andedges=[[0,1],[1,2],[3,
sundawei2016·2020-07-08 06:53

Number of Connected Components in an Undirected Graph

DescriptionGivennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Example1:graphGivenn=5andedges=[[0,1],[1,
Nancyberry·2020-07-08 05:20

Number of Connected Components in an Undirected Graph(并查集/DFS/BFS)

题目题目描述：一张含n节点的无向图，以及一组无向边，编写一个函数来查找无向图中连接的组件的数量。Input:n=5andedges=[[0,1],[1,2],[3,4]]03||1---24Output:2分析解法DFS/BFS/并查集，DFS和BFS时间复杂度均为O(e+n),并查集时间复杂度O(e+n)(路径压缩的权重quickUnion算法union接近O(1));e是edges的长度，n是
零的平方·2020-07-07 17:50

Number of Connected Components in an Undirected Graph 解题报告

题目：Givennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Example1:03||1---24Givenn=5andedges=[[0,1],[1,2],
魔豆Magicbean·2020-07-07 16:05

Leetcode 刷题 - 323 - Number of Connected Components in an Undirected Graph

Givennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Example1:03||1---24Givenn=5andedges=[[0,1],[1,2],[3,
加藤蜀黍·2020-07-07 04:16

[leetcode323]Number of Connected Components in an Undirected Graph

Question:Givennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Example1:03||1---24Givenn=5andedges=[[0,1],
清空的代码·2020-07-07 01:14

leetcode323：无向图中的连通区域的个数

www.cnblogs.com/grandyang/p/5166356.html题目地址：https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph
wwwsctvcom·2020-07-06 20:07

Number of Connected Components in an Undirected Graph 解题报告 (C++)

fuxuemingzhu.cn/目录题目描述题目大意解题方法并查集日期题目地址：https://leetcode-cn.com/problems/number-of-connected-components-in-an-undirected-graph
负雪明烛·2020-07-06 16:24

【复杂网络社团发现】Gephi绘制网络图

Type我设定的undirected无向，Weight权值和输入点集时同
不戒修仙不改名·2020-06-29 14:55

Number of Connected Components in an Undirected Graph

https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/description/image.png
西部小笼包·2020-06-28 22:00

Number of Connected Components in an Undirected Graph（连通分量）

原题网址：https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/Givennnodeslabeledfrom0ton
jmspan·2020-06-23 23:34

LINE:Large-scale Information Network Embedding

1.运用场景    whichissuitableforarbitrarytypesofinformationnetworks:undirected,directed,and/orweighted。
LuckPsyduck·2020-05-31 15:00

Undirected Graphs -- Data structure

UndirectedGraphsaveragedegree:Paste_Image.pngDFS,depthfirstsearchexampletrace:Paste_Image.pngTheoutputis0-2-1-3-5-4.DFSimplementation:Paste_Image.pngPropositionA.DFSmarksalltheverticesconnectedtoagive
奇得隆东枪·2020-04-10 12:12

Number of Connected Components in an Undirected Graph

Givennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Example1:03||1---24Givenn=5andedges=[[0,1],[1,2],[3,
sherwin29·2020-03-26 03:26

LC-323 Number of Connected Components in an Undirected Graph

Givennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Example1:03||1---24Givenn=5andedges=[[0,1],[1,2],[3,
Zihowe·2020-03-09 19:23

Number of Connected Components in an Undirected Graph

MediumGivennnodeslabeledfrom``0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Example1:03||1---24Givenn=5andedges=[[0,1],[
greatfulltime·2020-03-08 12:41

Number of Connected Components in an Undirected Graph

Givennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Example1:03||1---24Givenn=5andedges=[[0,1],[1,2],[3,
Jeanz·2020-03-04 07:26

[LintCode][DFS] Find the Connected Component in the Undirected Graph

ProblemFindthenumberconnectedcomponentintheundirectedgraph.Eachnodeinthegraphcontainsalabelandalistofitsneighbors.(aconnectedcomponent(orjustcomponent)ofanundirectedgraphisasubgraphinwhichanytwovertic
楷书·2020-02-19 04:57

Number of Connected Components in an Undirected Graph（python+cpp）

Leetcode323.NumberofConnectedComponentsinanUndirectedGraph题目解法1：DFS解法2：unionfind题目Givennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnected
努利！奋斗！·2020-02-18 11:58

Number of Connected Components in an Undirected Graph

Givennnodeslabeledfrom0ton-1andalistofundirectededges(eachedgeisapairofnodes),writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Example1:03||1---24Givenn=5andedges=[[0,1],[1,2],[3,
Stan95·2020-02-06 19:23

Leetcode - Number of Connected Components in an Undirected Graph

思路还是比较清晰的，三种方法UnionFind,BFS,DFSUnionFind采用的方法和找环差不多。统一分类。然后看下最后有几个不同的idMycode:publicclassSolution{privateintV=0;privateint[]id;privateint[]sz;publicintcountComponents(intn,int[][]edges){this.V=n;id=ne
Richardo92·2020-02-05 20:35

LeetCode 323 [Number of Connected Components in an Undirected Graph]

原题找出无向图中所有的连通块。图中的每个节点包含一个label属性和一个邻接点的列表。（一个无向图的�连通块是一个子图，其中任意两个顶点通过路径相连，且不与整个图中的其它顶点相连。）样例给定图:A------BC\||\||\||\||DE返回{A,B,D},{C,E}。其中有2个连通块，即{A,B,D},{C,E}解题思路方法一：对于无向图，首先要建立一个hashmap来去重，然后遍历每一个节点
Jason_Yuan·2019-12-15 15:11

Convert Adjacency matrix into edgelist

elarge)#class:list#-------UNDIRECTEDGraph-------------------#forundirectedgraph,simplyuse:udrtG=D.to_undirected
sonictl·2019-09-04 20:00

2018.10.09 hdu5333 Undirected Graph（lct+bit）

传送门lct经典题。我们把询问按右端点排序。这样按照右端点值划分询问顺序每次只会加入同一个右端点值那么多的边。于是只需要处理左端点就行了。如何处理？对于不同的边(u,v)(u,v)(u,v)，我们规定u>vu>vu>v，然后按照vvv排序。贪心处理。假设当前要加入一条边。加入后不会构成一个环，那么直接用lctlctlct来linklinklink就行了。加入后会构成一个环，那么贪心去掉
SC.ldxcaicai·2018-10-09 19:04

数据结构与算法（C++）– 图（Graph）

边(edge)：一对点即为一条边(v,w)，其中v,w∈V有向图(directed)：点对是有序的无向图(undirected)：点对是无序的邻接(adjacent)：w邻接到v，当且仅当(v,w)∈E
Wang_Jiankun·2018-09-06 11:12

无向图相关算法基础(java实现)

概述原文链接：http://www.cnblogs.com/yangecnu/p/Introduce-Undirected-Graphs.html图的应用很广泛，也有很多非常有用的算法，当然也有很多待解决的问题
csx66406602·2016-12-14 15:47

Number of Connected Components in an Undirected Graph

#include#include#include#includeusingnamespacestd;/*Givennnodeslabeledfrom0ton-1andalistofundirectededges,writeafunctiontofindthenumberofconnectedcomponentsinanundirectedgraph.Forexample:0|1--->24--->
ActiveCoder·2016-05-06 05:45

Number of Connected Components in an Undirected Graph

#include #include #include #include usingnamespacestd; /* Givennnodeslabeledfrom0ton-1andalistofundirectededges,writeafunction tofindthenumberofconnectedcomponentsinanundirectedgraph. Forexample: 0 |
github_34333284·2016-05-06 05:00
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