nodes

问题 Suppose that we have an n-node, m-edge undirected graph G = (V; E) and we have two distinct nodes called s and t. Suppose that the distance between s and t is strictly greater than n/2 . Show that there is a node v which is dierent from s and t such that every path from s to t goes through v. Give an algorithm with running time O(n + m) to nd such a vertex. You do not have to prove that your algorithm is correct but you must give a proof that a vertex like v exists. I can not figure out an

问题 Given the fact i have a versionable node with a versionable subnode. I checkin the first node with 1 subnode for version 1.0. Now i add a new subnode on parentnode (1.1). If i restore parentnode on version 1.0 i can see theres only first checkedin subnode available. When i now wanna restore parent back to version 1.1 and try to get VersionHistory for second subnode ill receive a pathNotfoundException while querying. I did ...restore(absPath, restoreToVersion, false); public static final

问题 I've been trying to figure out how to display the descendants (in this case exchangeRate and PlacesOfInterest) of a parent node with a specific attribute. To set the scene - the user clicks on a button which sets a string variable to a destination eg. japan or australia. The code then runs through a set of nodes in the XML and any that have a matching attribute is traced - simple enough What I can't figure out is how to then display only the child nodes of the node with that attribute. I'm

问题 This is an improved question based on my previous post: How to cluster bubble chart with many groups I worked on my code and has updated the block( based on Amber Thomas' script): https://blockbuilder.org/lydiawawa/1fe3c80d35e046c1636663442f34680b The animation toggles between mixed clusters and split clusters. It has too many jitters and the cluster with more dots seem to have none stop colliding effect. I'm hoping to achieve the following effect (v4 updated): https://bl.ocks.org/lydiawawa

问题 I am trying to build a cypher query for two scenarios : Tests having depth more than 2 Specific test having depth more than 2 As in Image you can see tests 1, 2, 3 are somewhat related through depth more than 2. The cypher which i ran was : MATCH p=()<-[r:TEST_FOR*..10]-() RETURN p LIMIT 50 Now when i Change my cypher to below then i get no records/results or nodes. 1) MATCH p=()<-[r:TEST_FOR*2..5]-() RETURN p LIMIT 50 2) MATCH p=()<-[r:TEST_FOR*2]-() RETURN p LIMIT 50 3) MATCH p=(d:Disease)<

问题 After following up from this question Insert text inside Circle in D3 chart My nodes are sticking to the center. I am not sure which property is directing my nodes and their x and y coordinates. I recently chnaged my code to add a g layer to the circles so that i can append text along with shape. DATA https://api.myjson.com/bins/hwtj0 UPDATED CODE async function d3function() { d3.selectAll("svg > *").remove(); const svg = d3.select("svg"); file = document.getElementById("selectFile").value;

问题 So, I'm not quite sure what is wrong with my toString method. I just keep having an error when I run my tests that it's incorrect. Basically what I am doing is implementing a cyclic DoublyLinkedList data structure. Like a singly linked list, nodes in a doubly linked list have a reference to the next node, but unlike a singly linked list, nodes in a doubly linked list also have a reference to the previous node. Additionally, because the list is "cyclic", the "next" reference in the last node

问题 Using sequelize transaction to insert into 2 tables, user and job, each user has one job, userId is the foreign key in job table: sequelize.transaction(function(t) { return models.users.create({ userType: 'test', username: 'alvin', }, {transaction: t}).then(function(user) { return models.job.create({ jobType: 'jocker', userId: user.userId // Take away this will work, it is a foreign key }); }, {transaction: t}); }).then(function(result) { resolve(result); }).catch(function(err) { reject(err);

问题 A short form of question is: How do I convert a recursive search into a stack search? The trick is to be able to grab a branch that leads towards each of the recursion's endings. This Article's suggestion won't work as the path to the ending cannot be traced. (Ultimately if we could save each step into array via the reference to trace later on) I am using c#, and building a web of nodes. Each node contains an information about its neighbors. Also, each node contains 2 arrays. The 1st one is

问题 I've learned so much using SoapUI, but, I'm just stuck on this one thing. I have the following payload returned: [ { "@c": ".CreditPaymentInfo", "supplementalInfo": null, "date": "06/30/2015 17:03:50", "posTxCode": "107535", "amt": 2.56, "transactionId": 235087, "id": 232163, "cardType": "CREDIT", "cardHolderName": "SMITH2/JOE", "expMonthYear": "0119", "lastFourDigits": "4444", "approvalCode": "315PNI", "creditTransactionNumber": "A71A7DB6C2F4" }, { "@c": ".CreditPaymentInfo",