Welcome to 2014-2015 CT S02E10: Codeforces Trainings Season 2 Episode 10 - 2014 Amirkabir University of Technology Annual Programming Contest (AUT APC 14). 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 availible as a virtual contest for whose of you who can't take part today. Please, do not cheat. Only fair play!

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

Good luck!

Today, there will be three official Algorithm rounds at the TCO finals: both semifinal rounds and the wildcard round in the evening. The precise times when these rounds take place can be found in the schedule. (Coding actually begins 30 minutes after the indicated starting time.) For all three rounds there will be live coverage done by me (misof).

What is the best way to follow the action?

1. Grab some snacks.

2. Join us in the TopCoder arena and enter the room for the contest. Talk to me there if you have some questions or requests!

3. Open the live coverage page for the live coverage.

See you there!

(P.S.: I will check the discussion here, but probably not during the rounds. If you have any quick questions, please msg me in the TC arena instead!)

Update: use the same link for finals!

Hello, Codeforces!

Actually, I didn't understand how, but I've prepated a round for the second division. I think it is subconscious wanted to soften the hard memories of the round of 276.

I hope that very much that the round will be held without any technical issues, as was the 277th.

I express my sincere gratitude to all involved in the preparation — Maxim Zlobober Akhmedov, Maria Delinur Belova, Polygon System, servers and James Gosling for Java. Also I am immensely grateful to the driver, who did not knock down me by car, although I, thinking about the problems, was crossing road on red.

It will be rated round, 6 problems and non-typical progressive scores: min(500 + i*500, 2500).

Wish you to see many Accepteds.

UPD. The Round moved 5 minutes forward. I want very much so that no one be late! Sorry.

UPD 2. Rating has been updated. But if we will find any cheaters, they will be punished and we will recalculate ratings. Thank you for participation!

Welcome to 2014-2015 CT S02E09: Codeforces Trainings Season 2 Episode 9 - 2006-2007 ACM-ICPC Northeastern European Regional Contest (NEERC 06). 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 availible as a virtual contest for whose of you who can't take part today. Please, do not cheat. Only fair play!

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 everyone!

Today, there will be another CodeForces Round at 18:00 (Moscow time). It is a Div. 2 contest, but Div. 1 participants can take part out of competition also.

My name is Vuong and this is my very first CodeForces round. Hope that this is not the last one. I would like to thanks Maxim Akhmedov(Zlobober) for help me preparing the round, Maria Belova(Delinur) for translating problems into English, and Mike Mirzayanov(MikeMirzayanov) for such a great Polygon and CodeForces.

Be sure to read all problem statements before contest ended. Hope you enjoy the contest.

Good luck and have fun!

UPD The contest is over! Thanks all of you for participating!

Here is top 5 participants:

1. khykhm110
2. My_First_Lady
3. Perditio
4. AkatsukiPain
5. s_z_l

The editorial can be found here.

Welcome to 2014 Benelux Algorithm Programming Contest (BAPC 14), 2014-2015 CT S02E08: Codeforces Trainings Season 2 Episode 8. 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 availible as a virtual contest for whose of you who can't take part today. Please, do not cheat. Only fair play!

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 everybody!

Today will be Codeforces Round #276, which take place in both divisions. Start time is 19:30 in moscow time (follow this link to see time in others zones). For preparing contest i say thanks to Zlobober, for translating to Delinur, and to MikeMirzayanov for project Codeforces.

Good luck to all, hope you will enjoy problems :)

UPD Score distribution will be dynamic (see more information here). Problems will be sorted in increasing order of difficulty, however, do not forget to read all problems before the end of the contest.

UPD The contest is over! Thanks to everyone who solved the problems despite everything. Analysis will be published later.

UPD Editorial can be found here.