Hello, Codeforces.
We're Refact.ai, an open-source AI Coding Assistant, and on November 9th, we'll be hosting our first round on Codeforces! It will be a combined Div.1+Div.2 round. Welcome!
The winners will receive valuable prizes, and all participants will have a chance to get some exclusive merch from us.
Refact.ai is pushing AI beyond simple code completion. Soon, we'll launch the Autonomous AI Agent—a developer's buddy that handles real engineering tasks end-to-end, from planning and coding to testing and deployment.
If you're excited about AI in software development and want to build the future instead of focusing on the trivial, join Refact.ai, founded by a former OpenAI researcher. We're looking for talented Researchers and Backend developers to join our team.
We already have competitive programmers on board, such as humbertoyusta and Rox. As humbertoyusta puts it, "Working at Refact.ai feels like being part of a team that's constantly pushing the boundaries of what's possible." If that sounds like your kind of environment, fill out this form for full-time positions (remote or in Barcelona).
If you're not open to new job opportunities but want to delegate tedious tasks and climb the leaderboard faster, explore: Refact.ai — an Open-source AI Coding Assistant that helps you create more while coding less.
Refact.ai already empowers you to code smarter. How?
- Built around your codebase, it provides accurate auto-completions powered by best-on-market Retrieval-Augmented Generation (RAG).
- Integrated in the IDE chat is already aware of your codebase and answers your questions right within your editor. (Compare it with Copilot and see the real power:)
- Detects and fixes bugs, writes unit tests, explains complex code, and much more!
Assign tasks in natural language, select from models like GPT-4o, GPT-4 Turbo, Claude 3.5 Sonnet, or Grow-Llama-3.1, and Refact.ai will generate the code for you.
Get 3 months of the Pro Plan for free: Refact.ai has a special gift for the Codeforces community. Just use the promo code CODEFORCES to redeem it.
Join the Discord community: Collaborate with like-minded developers and discuss the latest news and research.
Contribute to Refact.ai: As an open-source project, Refact.ai welcomes your contributions—join us in building the future of programming together!
We hope you enjoy the problems and have a great time participating in the round!
"If you cannot beat AI, join it" -Codeforces
I hope that problems in this round aren't made by AI...
but you are killing me
This reminds me of the story from the Warring period (google translated): "There was a weapon seller in the State of Chu who went to the market to sell spears and shields. Many people came to see him, so he held up his shield and boasted to everyone, "My shield is the strongest in the world. No matter how sharp or pointed it is, it can't pierce it!" Then, the weapon seller picked up a spear and boasted shamelessly, "My spear is the sharpest in the world. No matter how strong and solid it is, it can't stop it from poking you. Once it touches you, it will be pierced immediately!" He was very proud and shouted loudly, "Come and see, come and buy, the strongest shield and the sharpest spear in the world!" At this time, a spectator came forward, picked up a spear, and then picked up a shield and asked, "What will happen if you use this spear to poke this shield?" "This--" The onlookers were stunned at first, and suddenly burst into laughter, and then they all dispersed. The weapon seller walked away in disgrace, carrying his spear and shield."
Not saying authors are weapon sellers :)
Which also the history of the word "矛盾" (contradiction).
A story I've known through series of Ace Attorney game.
Off-topic, but looking at this comment and back at your name, I wonder if you had any close Chinese ancestry. I meant, your surname is pretty rare.
Yes, I am.
Despite of my background, I'm studying Japanese atm.
Still a long way to improve...
Everyone having twists in their lives, yeah? Well, good luck, and don't be like me, planning to learn Japanese for ~5 years and spending the same amount of time postponing the plan :,)
I love your question framing in codeforces please host again. That DIV 4 was awesome but because of server problem it went unranked :( i solved 2 question :) was solving 3rd one but server error made me sad.
As a tester, I cried because how beautiful the problems are.
tyristik which button for me ?
what does that button do? Post a comment?
Is it rated ? I mean combined Div1+2, so ig must be rated. Thoughts anyone ???
it has to be
Most informative announcement Blog I've ever seen \s
This is clearly not a contest announcement blog, even look at the heading.
Is it rated?
Yup Basically it's Div1 + Div2.
Wait... Where are the authors... Where are the testers.... Where are the guys who you thanks... Where is the statement : the score distribution will be announced later... Where etc....
So your company is just about charging $10/month for using the ChatGPT API?
So you work for free I guess?
Imagine if someone uses Refact to cheat on the contest using the promo code LOL.
wouldn't even be surprised.
would be disappointed though...
But why would programmers join Refact.AI to build something that takes their job?
I don't understand what you mean by "take their job"?
Wait till it happens to you and you'll understand
how will AI stop me from submitting a solution?
not giving contest
Which one is better, (it) or Cursor?
compare with another software? :v
yeah
I didn't get just one thing. Will this be a regular contest or will the problem set consist of tasks on AI topic?
a regular div1+div2
Thanks
Well well well, look what we've got here
Is this contest rated?
Yes It Is
Can we use Refact.AI during the round then? ;)
No.
well didn't expect to see that first time in the morning
can you use Refact.AI for this round xD
GUYS is this round gonna be rated or unrated ?
i will have a positive contribution with this comment
Number of Questions and Score Distributions for the round?
Actually, I only care if it's rated...
will it be rated?
Yes
how many problems can ur AI solve in this contest?
During contest using AI is not allowed. but contest of an AI is allowed in CF. haha.
Why do you we have to enter credit card details. If we can get 3 months free pro trial. Bruh.
Exciting to see Refact.ai hosting on Codeforces! A combination of Div.1 and Div.2 sounds intense; I can't wait to participate and experience the challenges!
Linkedin ahh comment
Really excited!!
Form for applications for full-time positions doesn't work in this blog, please copy proper link from your round announcement.
Also, please specify total compensation range, compensation structure (including benefits like medical insurance), skill requirements for each role and interview structure right here in the blog or provide a link where it's disclosed somewhere on your website.