Pinely Company is pleased to offer a 2500 usd grant for preparing contest for the Winter Petrozavodsk Camp. The quality and complexity level of the contest should not be lower than NERC. Problems should vary in topics and complexity.

Please send your problem ideas (with constrains and brief solutions) to contest.grant@pinely.com by January, 10. The application should include at least 9 problems + 2 spare ones. Your application will be approved (or not) by the 17th of January. As part of the approval process, you may be asked to replace or modify the submitted problems.

Should the application and problems be approved, it will be necessary to prepare tests, solutions and final statements for the problems by the 28th of January. The team will have to make problems analysis at the camp.

Pinely Company is pleased to offer a 2500 usd grant for preparing contest for the Summer Petrozavodsk Camp. The quality and complexity level of the contest should not be lower than NERC. Problems should vary in topics and complexity.

Please send your problem ideas (with constrains and brief solutions) to contest.grant@pinely.com by August, 6. The application should include at least 9 problems + 2 spare ones. Your application will be approved (or not) by the 15th of August.

As part of the approval process, you may be asked to replace or modify the submitted problems. Should the application and problems be approved, it will be necessary to prepare tests, solutions and final statements for the problems by the 22th of August. The team will have to make problems analysis at the camp.

AIM Tech math quiz will take place on August 24, at 15:00 MSK. Quiz prepared for Petrozavodsk Summer Camp participants, but everybody is welcome to join. You could participate in teams of one or two persons. All problems could be solved by pen, paper and calculator, but you could use computer as well. Using internet for solving problems is forbidden. Quiz duration is 2h.

In order to participate you should register on the website and fill the form: Registration link. Form should be filled before start of the quiz, Thanks to bobrdobr for the platform! It is rather new and available only in Russian, but all problems will have English statement as well.

Link to quiz itself (will be active when contest starts).

UPD.

Link to the problems with answers. Click "Показать решение" to see the answer.

Final scoreboard. Congratulations to the winners!

AIM Tech Company is pleased to offer a 1500 usd grant for preparing contest for the Winter Petrozavodsk Camp. The quality and complexity level of the contest should not be lower than Northern Eurasia Finals (NEERC). Problems should vary in topics and complexity.

Please send your problem ideas (with constrains and brief solutions) to ptz.contest.2019@gmail.com by January, 12. The application should include at least 9 problems + 2 spare ones. Your application will be approved (or not) by the 20th of January.

As part of the approval process, you may be asked to replace or modify the submitted problems. Should the application and problems be approved, it will be necessary to prepare tests, solutions and final statements for the problems by the 29th of January. The team will have to make problems analysis at the workshop. Following the application results, by the 20th January AIM Tech will select up to 2 teams that will receive a grant.

1) Be sure to be ready pay for the trip by yourself (in previous years, organizers eventually paid for everything except the plane), if (when :troll) we will be out of the top-15 in elimination round. Write pm, if you are interested, qualification starts on Friday.

2) Rating  ≥  2300

Link https://www.codechef.com/snackdown?ref=profmail

UPD Thanks everyone who wrote me, teammate found. A lot of strong people wrote me, I think they could easily find each other in comments (or in some other way).

Hi, Codeforces!

AIM Tech Codeforces Round 5 will take place on Aug/27/2018 19:35 (Moscow time).

The round is prepared by AIM Tech employees: Kostroma, riadwaw, Edvard, yarrr, zemen, Errichto, malcolm, gchebanov, VadymKa and zeliboba.

Round will take place during Petrozavodsk Summer Camp, which is sponsored by our company.

Thanks to Mike Mirzayanov(MikeMirzayanov) for brilliant platforms Polygon and Codeforces and problem coordinator Nikolay Kalinin (KAN). Many thanks to Golovanov399, Arterm, winger for round testing!

Our company specialises in proprietary trading, the key concepts in our work are big data, low latency and high frequency. Our team mainly consists of graduates from the Moscow State University (MSU) and Moscow Institute of Physics and Technology (MIPT). You could read more on our website aimtech.com.

Participants of combined round will be given 8 problems and 2:15 to solve them.

Last three problems have almost the same difficulty, so we advise read all of them.

Prizes from round 502 in memory of Leopoldo Taravilse will be distributed in this round.

Top-25 will get 100$ each, following 46 will get 50$ each.

Scoring 500-750-1250-2000-2500-3250-3250-3500

We wish you good luck and high frequency rating!

Thank you for participation, congratulations to the winners!

1. LHiC
2. jqdai0815
3. bmerry
4. Um_nik
5. Egor
6. Benq
7. tqyaaaaang
8. DearMargaret
9. Marcin_smu
10. Swistakk

Editorial

Short editorial by bmerry

Information about prizes and analysis will be published later.

Hi, Codeforces!

AIM Tech Codeforces Round 4 will take place on August 24, at 19:35 MSK.

The round is prepared by AIM Tech employees: malcolm, Kostroma, Edvard, yarrr, zemen, gchebanov, VadymKa, zloyplace35, ValenKof, riadwaw and zeliboba.

Round will take place during Petrozavodsk Summer Camp, which is sponsored by our company.

Thanks to Mike Mirzayanov(MikeMirzayanov) for brilliant platforms Polygon and Codeforces and problem coordinator Nikolay Kalinin (KAN). Many thanks to qwerty787788, Zlobober, ifsmirnov and AlexFetisov for round testing!

Our company specialises in proprietary trading, the key concepts in our work are big data, low latency and high frequency. Our team mainly consists of graduates from the Moscow State University (MSU) and Moscow Institute of Physics and Technology (MIPT). You could read more on our website aimtech.com.

Participants of both divisions will be given 5 problems and 2.5 hours to solve them.

Problems C-D-E in the first division have almost the same difficulty, so we advise read all of them.

Scoring in the second division 500-1000-1500-2000-3000, in the first division 500-1000-1750-2250-2250.

We wish you good luck and high frequency rating!

Congratulations to winners!

Div. 1:

yosupo

SpyCheese

DEGwer

W4yneb0t

Um_nik

Div. 2:

epicure

bazsi700

Shavkat_Aminov

Tian.Xie

madn

Strikeskids

Hi, Codeforces!

AIM Tech Codeforces Round 3 will take place on August 24, at 19:35 MSK.

The round is prepared by AIM Tech employees: Kostroma, riadwaw, yarrr, ValenKof, Edvard, bobrdobr, malcolm, NVAL, nmakeenkov, agul, Extr and zeliboba. Round will take place during Petrozavodsk Summer Camp, which is sponsored by our company.

We made our problems a little easier than at AIM Tech Round 1 and AIM Tech Round 2 but we promise they won’t be less interesting. Scoring system will be static.

Thanks to Mike Mirzayanov(MikeMirzayanov) for brilliant platforms Polygon and Codeforces and problem coordinator Gleb Evstropov (GlebsHP). Many thanks to AlexFetisov and winger for round testing!

Our company specialises in proprietary trading, the key concepts in our work are big data, low latency and high frequency. Our team mainly consists of graduates from the MSU Faculty of Mechanics and Mathematics and Moscow Institute of Physics and Technology (MIPT).

We wish you good luck and high frequency rating!

Scoring in both divisions 500-1000-1500-2000-2500

Editorial

Hi, Codeforces!

AIM Tech Codeforces Round will take place on February, 4 at 20:05 MSK.

The round is prepared by AIM Tech employees: Kostroma, riadwaw, yarrr, ArtDitel, ValenKof, bobrdobr, agul, gchebanov and zeliboba. Round will take place during Petrozavodsk Winter Camp, which is sponsored by our company.

We made our problems a little easier than at our last Round, but we promise they won’t be less interesting. Scoring system will be static. The final distribution of points will be announced right before the round, however you should note that this time difference in complexity between problems div1 C, D and E may be less than usual so our strong recommendation that you read them all first.

Thanks to Mike Mirzayanov(MikeMirzayanov) for brilliant platforms Polygon and Codeforces, problem coordinator Gleb Evstropov (GlebsHP) and Maria Belova (Delinur) for English translation.

Our company specialises in proprietary trading, the key concepts in our work are big data, low latency and high frequency. Our team mainly consists of graduates from the MSU Faculty of Mechanics and Mathematics and Moscow Institute of Physics and Technology (MIPT).

We wish you good luck and high frequency rating!

P.S. For all participants of PTZ gathering we are glad to announce evening buffet that will take place at Paulaner Brauhaus and will start Februrary, 5 at 7:30 pm

Scoring

div2: 500 — 1000 — 1500 — 2000 — 3000

div1: 500 — 1000 — 1750 — 2000 — 2250

Editorial

P.P.S. Author solution of div2A had precision error 5e-7, so we decided to rejudge this problem.

Hi, Codeforces!

Codeforces Round 317 will take place on August, 22 at 19:30 MSK.

The round is prepared by AimFund employees: Kostroma, riadwaw, yarrr, gchebanov, ArtDitel, SirShokoladina and zeliboba.

Scoring system will be static.

Thanks to Mike Mirzayanov(MikeMirzayanov) for brilliant platforms Polygon and Codeforces, problem coordinator Max Akhmedov (Zlobober) and Maria Belova (Delinur) for English translation.

Top 200 div1 participants will be awarded t-shirts. To learn more about AimFund please refer to our previous post.

This round is prepared as part of "5 years" Codeforces program as our present to community. This round is the first Thanks-Round devoted to companies donated significant money.

We wish you good luck and high frequency rating!

P.S: scoring 1 div 750-1250-1500-2000-2750. 2 div 500-1000-1750-2250-2500

P.P.S. Top-20 div2 participants will be awarded t-shirts.

Analysis

P.P.P.S. Dear friends. We are pleased to inform you that t shirts delivery will be under way next week. We hope you will really like them. Our sincere congrats again to you all!

Hello everyone!

Congratulations from AIM Fund to Codeforces on their 5th anniversary! Many of our employees take part in competitive programming, so we took the opportunity to support the crowdfunding campaign run by Codeforces. We appreciate what we have learned here and we are grateful for the enjoyable moments that we spent solving interesting problems. Within the next month, we are planning to run our round and will do our best to create challenging problems.

Our company specialises in proprietary trading, the key concepts in our work are big data, low latency and high frequency. Our team mainly consists of graduates from the MSU Faculty of Mechanics and Mathematics and Moscow Institute of Physics and Technology (MIPT).