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Re: Differential Directory, indexing method 5 Days Ago by xrjf I've just made an update because some records weren't being added properly. The issue was that the form didn't take into account that the register field (in the call to DiDi) is passed by reference. Re: Differential Directory, indexing method 3 Days Ago by noahevans This is a brilliant explanation of how Differential Directory (DiDi) indexing works — very efficient and elegant. The idea of storing only the first differing bit between keys reminds me of how we optimize systems for speed and memory, much like how some tech repair services streamline diagnostics. At FixnVibe, our approach to mobile phone … Differential Directory, indexing method 1 Week Ago by xrjf … one (already sorted), rather than storing full keys in each node. Much like when writing a list by hand and using… differing bit between keys. It stores this position in a node, which also contains references to the left and right nodes… to record 2. If it matches, we insert a new node 6e between records 1 and 2, updating the structure to… 500 Internal Server Error: Need to Hire Developers in USA 4 Weeks Ago by YashSmith …. No clear logs indicate the issue. The backend is in Node.js with Express.js. app.post('/submit', async (req, res… Re: Question/Answering over SQL Data Using LangGraph Framework 2 Weeks Ago by Pelorus_1 Through its combination of natural language processing and structured query generation, LangGraph makes interfacing with databases and extracting insights over SQL data easier than ever. Re: Differential Directory, indexing method 1 Week Ago by rproffitt DiDi appears to be some China based UBER service but then again I can't find a question or much else to discuss here. Re: Differential Directory, indexing method 1 Week Ago by xrjf About DiDi DiDi (Differential Directory) was originally developed as part of my thesis project in the early 1990s. The name bears no relation to the more recent Chinese ride-sharing company. At the time, DiDi was a novel approach within its academic context, but a change in legislation unfortunately led to the closure of the school and the … Re: Differential Directory, indexing method 1 Week Ago by xrjf For example, as Donald Knuth points out in The Art of Computer Programming, the theoretical lower bound for comparison-based sorting algorithms is K × log₂(N). I developed a very simple method that matches this performance. However, DiDi goes far beyond: its performance is proportional to K × (maximum key length), regardless of the number of … Re: Differential Directory, indexing method 1 Week Ago by xrjf As an illustration, consider the theoretical lower bound for comparison-based sorting, as stated by Donald Knuth in The Art of Computer Programming: K × log₂(N). I developed a simple method that matches this limit. For example, to sort the list {2, 5, 7, 1, 4, 3, 8, 6}: Sort pairs: (2, 5) → [1] (1, 7) → [2] (3, 4) → [3] (6, 8) → [4] Merge… Re: Differential Directory, indexing method 1 Week Ago by xrjf "Just to clarify a previous mistake: the efficiency should be K × N × log₂(N), not K × log₂(N) as I initially wrote." Re: Key Tools and Tips for Efficient Web Development 2 Months Ago by RKE2 Great advice! React, Vue, Node.js and Django are definitely game-changers for web development. I love using GitHub for version control tool. It is so essential for smooth collaboration. Looking forward to hearing more tips from others. Re: Key Tools and Tips for Efficient Web Development 2 Months Ago by simplixi … when you're just starting out. **Back-End Developmen**t * **Node.js:** Imagine writing code using JavaScript, but instead of just… Re: Which Python PDF writing library is best? 2 Months Ago by policenbicleara it depends on your needs! PDFKit is great for Node.js, but if you need more advanced features, jsPDF is solid for client-side use, and PyMuPDF (fitz) or ReportLab are great in Python. What kind of PDFs are you generating Re: Page Speed Issue 2 Months Ago by Dani I think you might be confusing Java with Javascript. Is your website built with Javascript technologies such as Node.js? Re: Node.js books 12 Years Ago by LastMitch … Rusu** >Does anyone know where I can order some node.JS books ( Real books not PDFS or articles ) Have you… try google it? https://www.google.com/search?q=Node.js+books&hl=en&client=firefox-a&… Node.js books 12 Years Ago by Robert Rusu Hello Does anyone know where I can order some node.JS books ( Real books not PDFS or articles ) Cheers, Robert node.js socket.io script getting killed by SIGSEGV after 1-2 days 10 Years Ago by nousername19 I am running my node.js server by forever and my script gets killed …by signal: SIGSEGV Now i have many functions in my node.js script. Upon writing a console.log at the … connect to my pgsql database via node-dbi: var DBWrapper = require('node-dbi').DBWrapper; var DBExpr = require('node-dbi').DBExpr; var dbConnectionConfig = {… Re: Node.js webcaching 12 Years Ago by LastMitch >i want to write an http-proxy progam by node.js that can store cache on my disk , The **node-http-proxy** is used to create proxy. The code is here: https://github.com/nodejitsu/node-http-proxy#readme You can read an article regarding about using **node-http-proxy**: http://venturebeat.com/2012/01/07/building-consumer-apps-with-node/ Node.js problem 13 Years Ago by baig772 Hi all i am new to Node.js i followed the tutorial and typed the following [CODE]… i have to setup any web server for it??? or Node.js does it itself??? node.js Cannot get 3 Years Ago by Sebastian_12 Im am new to node.js and get the mentioned error in server.js file. … introduce a gantt diagramm with dhtmlx library. I am using Node v16.13.1 and IntelliJ 2021.3 Below are my… Node.js 13 Years Ago by Mkaveli Hi i was wondering if someone knows some good tutorials on creating website with Node.js, jquery, ajax and HTML. Much appreciated, Mkaveli Node.js webcaching 12 Years Ago by lmthuan Hi all, i want to write an http-proxy progam by node.js that can store cache on my disk , so, how can i do ? thank ! Re: Node class - Problem with pointers 13 Years Ago by mitrious …you want to use Sky Diploma's suggestion either [code] Node::Node(Node* p,const State& s, int d) : …icode]assert[/icode] to check that it never is: [code] Node::Node(Node* p,const State& s, int d) : parentNode(…what's happening. Well, here's my node class: [CODE]class Node { public: Node(); Node(Node*,const State&, int); //Depth of … Node class - Problem with pointers 13 Years Ago by mitrious … atribute. My constructor is as follows: [CODE]Node::Node(Node* p,const State& s, int d) : parentNode(…loop. if I use a constructor such as this: [CODE]Node::Node(Node* p,const State& s, int d) : parentNode(0…(s), depth(d) { if(p != NULL) parentNode = new Node(p->parentNode, p->currentState, p->depth); } [/CODE… Re: Node class - Problem with pointers 13 Years Ago by ravenous … you want to use Sky Diploma's suggestion either [code] Node::Node(Node* p,const State& s, int d) : parentNode(…icode] always pointing at the "grand-parent" node. In effect, this will ensure that it is actually always… [icode]assert[/icode] to check that it never is: [code] Node::Node(Node* p,const State& s, int d) : parentNode(p),… Re: Node question 14 Years Ago by Taywin … if you want) instead of Integer. [CODE] // initial variable Node<String> head = null; // the head of the … String[] tokens = str.split(" "); // construct link list Node for (int i=0; i<tokens.length; i++) { // … size? if (head==null) { // new list head = new Node<String>(tokens[i], null); // create the head of… Node question 14 Years Ago by minimi …gt;(); // instantiate Character stack Integer result = new Integer(0); Node<Integer> num1, num2; Integer int1 = new Integer…); num1.setNext(num2); // link two nodes // print linked nodes Node<Integer> pointer = num1; Integer number = pointer.getData();… Re: Node question 14 Years Ago by minimi …T data; // next points to the next node private Node<T> next; /** * Constructor … @param next2 * initializes the next reference variable.. */ public Node(T data2, Node<T> next2) { data = data2; next = …Field. * * @return the address to the next node */ public Node<T> getNext() { return next; } … Node and Lists 13 Years Ago by bricemfr …class with the following interface (at a minimum): bool addItem(Node&) //add an item to the list, return true… on success Node* getLargestNode( ) //return the largest value stored in the list…List has seen, it should store a pointer to that Node. getLargestNode( ) should iterate the list…start at the top… Re: Node class - Problem with pointers 13 Years Ago by Sky Diploma … be initializing 'parentNode' to point to the parent of the Node* p ie: p->parentNode, however in the first constuctor… was wondering if the following would do the trick. [code] Node::Node(Node* p,const State& s, int d) : parentNode(p->…