Rodion Gorkovenko articles - 31 total
Any programming challenges with money prizes?
I remember eons ago there were TopCoder which held contests with some money prizes perhaps twice per...
Do you code Games?
Hi Friends! The question is in the title: do you code games, at least sometimes? Sorry, but it is ve...
Personality Swap - new problem based on Futurama episode
One of episodes of Futurama series (Prisoner of Benda) is about personality-swapping machine - it can...
Tesla Hack shows how far AI is from being really intelligent
Recent news about successful "Hack" of Tesla car. It's system of computer vision / optical recognitio...
try Scheme instead of JavaScript for UI
In this tutorial we'll try create animation LIKE THIS (Bunny image bouncing inside rectangular DIV) -...
I award free Certificates at CodeAbbey, Ask Me Anything!
In the fall of 2013 I started building my small web-site with programming problems - CodeAbbey. Soon...
Finding best post time on DEV (improved version, with PHP)
I explained recently how we can find the hour of the day, in which more posts here at DEV are created...
Loop detection - Google interview question
My friend (really former student) wrote me about interview he had recently - as I understand for "int...
Ads or Donations - what you prefer to gain money with your site?
After you get, say, your first steady 1000 daily pageviews with your web-site, you become curious - i...
Detecting DEV peak hours via API (bash study)
It may be interesting, when there are more people reading DEV - for example, perfect timing is import...
Is DEV skewed to web-dev mainly? Are you in for something else?
Hi Friends! I enjoy being here, at dev.to for some time already. By and by I start wondering - is it...
Hacking Random Generator (linear congruential generator)
New problem: Cracking "LCG" Random Generator @ CodeAbbey Default random generators in some languages...
Rewrite this SQL for NoSQL, graph-db (e.g. Neo4j)
I'm trying to recollect some examples of SQL queries which I couldn't rewrite into queries for graph...
How we killed project with NoSQL
I recently read some post about yet another NoSQL solution. This reminded me of the project which was...
Interview problem: Sick Travelers
Now, with New Coronavirus situation, this problem gives interesting epidemic simulation! There is...
HTTP-based games for Programmers
So I've created "organization" for my side-project here at DEV. And it is time for introduction post....
Java is NOT EASY to learn. But still worth :)
Here was the post Why should learn Java in 2020 - and it started with: Java is Easy to Learn I'd sa...
GitHub deprecates access token in URL!
Just recently I posted brief comparison about using authentication with Facebook / Gmail / Github on...
Listen to Compiler!
Many programmers, especially juniors (or while yet studying) tend to ignore compiler warnings :) I'd...
Do you ask for "offline" test project when applying for job?
General process of getting hired includes interview with, probably, some time dedicated to assessing...
Start dev career as QA Automation Engineer (with Selenium)
I see even here on DEV many people struggle after school/college/university to get their first job in...
School problem from senior developer interview
I was asked this problem years ago at interview for Java developer. It was about using BigInt really,...
Facebook, Google or Github - which OAuth for your site?
When your site needs user registering (e.g. to track some activity, perhaps, learning progress as in...
Bash for Project Euler - really???
Whatever language and stack you prefer, learn bash also! - that wisdom come to me through years. I wa...
Go vs PHP, JSON and Earthquakes - part 2
So here is the web-service providing JSON data about earthquakes for the last day. And in the previo...
There is a bug on your server (user said)
Hopefully I'll compile in future a list of "most annoying things beginners do" (and perhaps even late...
Go vs PHP for short JSON-retrieving code
I found this nice tutorial on retrieving data about recent earthquakes (from US gov service) - it nic...
Sort replies by time at dev.to (especially welcome threads)
Friends, I'm sorry for annoying with such a silly question, but I can't find how to sort replies by t...
Javascript - predict operation result
Sorry for this may be well-known for some people, especially professional JS devs. But JS is so widel...
Popular SQL interview question met in practice
Many interviews I passed (or not passed) included questions on the main solution language (say, Java)...