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Differential Directory, indexing method 3 Weeks Ago by xrjf … each key and the previous one (already sorted), rather than storing full keys in each node. Much like when writing a… Re: Differential Directory, indexing method 3 Weeks 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 3 Weeks 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 3 Weeks 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 3 Weeks 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 3 Weeks 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: Differential Directory, indexing method 3 Weeks 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 2 Weeks Ago by xrjf Just a quick update for anyone interested: I have revisited and significantly improved the code, aiming for a more professional structure and better performance. The updated version avoids freezing the UI during long operations and follows more robust programming practices. If you’d like to see DiDi in action, there is also a video … Re: Storing PHOTOS in Mysql database through C# .Net 15 Years Ago by sknake Storing files inside of SQL server has always been a controversial … Storing PHP serialize/json_econde data 11 Years Ago by extjac … counties, age_groups, gender, sports, etc.. on countries I will be storing data with this format["US","CA"…","SE"] on age groups I will be storing data with this format["2000","1999"…","F"] on age groups I will be storing data with this format["soccer","hockey"… Storing data into an Array 19 Years Ago by Savage221 … before the number is stored. Just storing data is easy, but removing the hyphen then storing is really confusing me, the book… Storing login status in a cookie vs a variable 14 Years Ago by shaqtus … to "false". My question is, should I be storing this information in a http cookie instead of a variable…? (I'm thinking that storing this in a variable on the server might slow down… Re: Storing data into an Array 19 Years Ago by Savage221 … the next number, checking if its a digit and then storing it into an array of 7 integers, however, the person… Re: Storing login status in a cookie vs a variable 14 Years Ago by Lusiphur … had said: >>My question is, should I be storing this information in a http cookie instead of a variable… Storing A Long Array of bytes in an XML file. 18 Years Ago by khusani Hey all, I got this problem regarding storing array of bytes (Length=589824) inside an XML document. i … storing multiple email address problem 17 Years Ago by Mohit_Agarwal hello all i am new to php.i don't know how to use split function for separating multiple email addresses and storing in an array and then printing that each value of array... if anybody can help me out then i will be thankful to him/her. Storing Form Field data in .txt Document (ASP-VB) 17 Years Ago by Varelei I remember reading something in the past aboout storing form values into strings, then the strings into a .txt … Storing web content, best method 17 Years Ago by rjh001 …, diagrams etc. What would be the most appropriate method for storing this data? At the moment i'll be working with… storing arguments from command line 17 Years Ago by silentdragoon … -- taking an argument placed after the program's name and storing it. So, if I type whatnumber 4 it will store… Storing video that I can access from our database 16 Years Ago by bclac08 …'t quite get how you set up a system of storing them elsewhere, and more specifically HOW do you access them… Storing checkbox values............. 16 Years Ago by ishlux Hi all, I am storing check box values with comma separated into db like this , … Storing things as a byte 16 Years Ago by BestJewSinceJC I'm having trouble with storing bits as a byte. I've read probably 30 different … storing a polynomial 16 Years Ago by smsamrc … manage those operations part. but i have a problem when storing the terms of the polynomial in to a linked list… Re: storing a polynomial 16 Years Ago by BestJewSinceJC … for loop, you can go through, multiplying each number, and storing it in an appropriate place. [CODE=Java] for (int i… Storing image to mysql in c# 15 Years Ago by malikfirose i heard there is a data type call blob in mysql to store image,can any one help me in which data type the image should be stored to db, or if any one send a link of a sample project with storing image to mysql using c# , that would be really helpful to me Re: Storing image to mysql in c# 15 Years Ago by codeManJones Hi malik, BLOBs (Binary Large OBjects) are where its at for storing images (and other media) in a database check out this article for using BLOBs in C# [url]http://www.c-sharpcorner.com/UploadFile/Ashush/UsingBlobs03222008142343PM/UsingBlobs.aspx[/url] Storing variables for a particular session 15 Years Ago by abhipro Hi, Is there any way of storing some variables, say username for a particular session in ASP.… Storing in a Database 15 Years Ago by phouse512 Hello, I've looked on google for information about storing multiple pieces of information in one database column, but I can't find anything helpful. If I want to have some sort of etc. inventory, and there is more than one 'item', how would I store multiple items inside the database? Thanks Storing PHOTOS in Mysql database through C# .Net 15 Years Ago by InnocentVamp Hi all. I want to ask about storing the photos in a MySql database. I am developing a … Re: Storing PHOTOS in Mysql database through C# .Net 15 Years Ago by InnocentVamp Thank you very much... It is now clear that as per my requirement I can even use the MEDIUMBLOB datatype of MySql for storing the photos in the database... Thank you...