Hey everyone!

Good news — Russian AI Cup 2016 has started! This competition is being held for the fifth time, and this time, hopefully, we will make happy all the fans of the MOBA game genre — you will be controlling a wizard, and together with 4 teammates you will try to destroy enemy base with magic and help of minions.

Try yourself in creating an artificial intelligence, it's simple and fun. Go to Russian AI Cup site and enter the battle. Good luck!

What is it?

Russian AI Cup — largest annual artificial intelligence programming contest in Russia, and third open competition for talented IT-specialists that is part of Mail.Ru Group strategy of forming and developing competitive Russian IT-industry on a global scale.

Following programming languages are supported: C++, C#, Java, Pascal, Python 2, Python 3 и Ruby. Anyway, as previously, we are ready to support language packages, realized by the community.

We welcome both beginners and professionals to the championship. No special skills are needed, just basic programming level is enough.

When?

• Sandbox: open for everyone starting on November 6, 21:00 UTC and finishing on December 25, 21:00 UTC; first and fourth weeks will be beta-testing weeks, this time it is possible that the system is unstable, and significant changes in the rules can be made. Rating in the Sandbox will be reset on November 13 at 21:00;
• Round 1: November 25, 21:00 UTC — November 27, 21:00 UTC;
• Round 2: December 9, 21:00 UTC — December 11, 21:00 UTC;
• Finals: December 16, 21:00 UTC — December 18, 21:00 UTC.

Prizes

Best strategies that made it to the Finals and took top places, as well as best wizards from the Sandbox, will receive prizes. Also, all participants of Round 2 will receive a T-shirt, and all finalists — a hoodie with contest symbolics.

Welcome to 2016-2017 CT S03E09: Codeforces Trainings Season 3 Episode 9. The training duration is 5 hours. It is opened for teams as well as for individual participants. After the end you may use the practice mode to complete problem solving. Also it will be available as a virtual contest for whose of you who can't take part today. Please, do not cheat. Only fair play!

Visit Codeforces::Gym to find the contest and register.

We are planning to start on November 9, 2016 13:10 (UTC).

It is possible that the problems will be too easy for some participants, it is possible that we will add some problems.

Good luck!

Hello all,

Codeforces announces contest for the best motto (slogan) for laptop stickers!

Motto is a short catchy and creative slogan/tagline. It should relate to programming contests/problems. It will be great if everybody who sees our stickers gets to know how programming contests are cool! We are looking for motto in English.

Write your mottos in comments, vote for your favorite! The writer of the best motto will get a set of new stickers :-)

The results will be announced on November, 14. We will take into account number of votes and opinion of the Codeforces Team.

Good luck!

UPD: Thank you for your proposals! I've already started to draw some of them. Which ones? Let's save intrigue: the final stage of the contest with proposals from the community and the Codeforces team is waiting! ;)

Hello,

Another contest from Samara reached Codeforces Gyms. It will be held on Saturday, November 5, at 10:00 MSK. Please don't participate if you know the problems.

And as usual,

Welcome to 2016-2017 CT S03E08: Codeforces Trainings Season 3 Episode 8 - 2005-2006 ACM-ICPC, Tokyo Regional Contest + 2010 Google Code Jam Qualification Round (CGJ 10, Q). The training duration is 5 hours. It is opened for teams as well as for individual participants. After the end you may use the practice mode to complete problem solving. Also it will be available as a virtual contest for whose of you who can't take part today. Please, do not cheat. Only fair play!

Visit Codeforces::Gym to find the contest and register.

We are planning to start on November 2, 2016 13:10 (UTC).

It is possible that the problems will be too easy for some participants, it is possible that we will add some problems.

Good luck!

Hello!

Next Codeforces round #378 for participants from the second division will take place on October 31, 2016 at 17:05 MSK(Moscow time). Traditionally, participants from the first division are able to participate out of the contest.

This round will be unusual:participants will be given six problems and two and a half hours to solve these problems. Pay attention to the unusual time of the beginning of a round!

I want to thank Nikolay Kalinin (KAN) for help with preparation of this round, Tatiana Semenova (Tatiana_S) for translation of statements and Mike Mirzayanov (MikeMirzayanov) for great Codeforces and Polygon systems and also for the help in preparation of a contest and the ideas for several tasks.

It is my first round and I hope you will appreciate it.

The scoring is 500-1000-2000-2000-2750-3000.

Congrats to the winners!

Div. 2

1. Abdelfatah_Elsisi

2. knp

3. ahihi_do_ngok

4. Thaddeus

5. miagkov

6. mayuntao

7. __0v0__

8. den2204

9. CorrelationDecay

10. goodthingstaketime_._

Div. 1

1. uwi

2. dreamoon_love_AA

3. netman

4. MrDindows

5. arsijo

Editorial

Welcome to 2016-2017 CT S03E07: Codeforces Trainings Season 3 Episode 7 - HackerEarth Problems Compilation. The training duration is 5 hours. It is opened for teams as well as for individual participants. After the end you may use the practice mode to complete problem solving. Also it will be available as a virtual contest for whose of you who can't take part today. Please, do not cheat. Only fair play!

Many thanks to Errichto for the preparation of the training. He has saved me!

Visit Codeforces::Gym to find the contest and register.

We are planning to start on October, 26, 2016 13:10 (UTC).

It is possible that the problems will be too easy for some participants, it is possible that we will add some problems.

Good luck!

UPD: The training is over. Many thank to HackerEarth for problems! Undoubtedly Errichto is my hero of the day — he've prepared the training! Special thanks to the problem writers.

The editorial is in the comment http://codeforces.me/blog/entry/47985?#comment-322692

Today 2016-2017 ACM-ICPC, NEERC, Southern Subregional Contest will be held. On behalf of jury and hosts I wish teams to make happy their coaches!

You can watch the results by the link https://contest.sgu.ru/monitor/1.

And on Sunday (October, 23) on 08:00 (UTC) we will host unofficial online mirror. Interesting problems are waiting for you. Judges tried to prepare problems of wide difficulty range: for newcomers and for expirienced teams. This will be a team/personal contest on Codeforces, with teams consisting of up to three people or individual participants. The contest will not affect Codeforces ratings.

For sure, it will be unrated contest. We recommend you to take part in teams. I think, the contest will be moved to Gym later.

Good luck!

MikeMirzayanov, head of judges.