XVIII Open Olympiad in Informatics (Unrated, Online Mirror, IOI rules)

Правка en14, от Artyom123, 2024-03-08 17:59:16

Hi everybody,

In a few days there will be a Moscow Open Olympiad. This olympiad is prepared by Moscow Olympiad Scientific Committee that you may know by Moscow Olympiad in Programming, Moscow Team Olympiad, and Megapolis Olympiad (rounds 327, 342, 345, 376, 401, 433, 441, 466, 469, 507, 516, 541, 545, 567, 583, 594, 622, 626, 657, 680, 704, 707, 727, 751, 775, 802, 829, 852).

The Open Olympiad consists of the most interesting and difficult problems proposed by our authors' team. Therefore, we decided to conduct a non-rating mirror of the Olympiad on Codeforces. The Olympiad takes place in two rounds, each consisting of $$$4$$$ problems, not ordered by difficulty, and $$$5$$$ hours to solve them. The difficulty of the problems is comparable to the level of Div. 1. Each problem is worth $$$100$$$ points that are distributed into multiple subtasks with different constraints that allow the participant to earn partial score. Testing is done in the IOI format, where the participant receives a full testing report on all tests in the Online-subtasks during the competition. The feature of the Open Olympiad is that some problems have Offline-subtasks, the results of which will only be available after the end of the competition. Note, that you will not have access to the scoreboard during the competition.

The competition problems were created and prepared by Mangooste, vaaven, Tikhon228, ViktorSM, isaf27, TheEvilBird, sevlll777, Papaz239 и pakhomovee guided by Ormlis, grphil and Helen Andreeva.

The mirror on Codeforces will take place in Mar/08/2024 12:05 (Moscow time) and Mar/09/2024 12:05 (Moscow time).

Special thanks to MikeMirzayanov for the codeforces and polygon systems, which were used in preparing the problems for this Olympiad.

Many thanks to the Olympiad testers: dshindov, FelixDzerzhinsky, Adikolon, isaf27, adepteXiao, talant, AgafonovArtem, Dart-Xeyter, inhabitant, Kapt, Siberian, alexashkins, alexxela12345, Sweezy, v0s7er, MOHOXPOM, Titoffifee.

Good luck!

UPD1: The solutions were tested on offline-groups. The scoreboard for the first day is also available.

История

 
 
 
 
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  Rev. Язык Кто Когда Δ Комментарий
en16 Английский Artyom123 2024-03-09 18:40:19 111
ru11 Русский Artyom123 2024-03-09 18:39:15 117
en15 Английский Artyom123 2024-03-09 18:36:18 111
ru10 Русский Artyom123 2024-03-09 18:35:31 117
en14 Английский Artyom123 2024-03-08 17:59:16 110
ru9 Русский Artyom123 2024-03-08 17:58:10 113
en13 Английский Artyom123 2024-03-06 18:16:16 147
ru8 Русский Artyom123 2024-03-06 18:14:40 134
ru7 Русский Ormlis 2024-03-06 14:34:37 0 (опубликовано)
en12 Английский Ormlis 2024-03-06 14:34:27 0 (published)
en11 Английский Ormlis 2024-03-06 14:15:58 2 Tiny change: '7">852</a>, ).\n\nThe ' -> '7">852</a>).\n\nThe '
en10 Английский Ormlis 2024-03-06 14:14:34 92
ru6 Русский Ormlis 2024-03-06 14:13:35 80 Мелкая правка: 'odeforces пройдёт в [contest_' -> 'odeforces состоится [contest_'
en9 Английский Ormlis 2024-03-06 04:23:14 18 Tiny change: '24-03-05] under the guidance of [user:Orm' -> '24-03-05] guided by [user:Orm'
en8 Английский Ormlis 2024-03-06 04:22:07 23
en7 Английский Ormlis 2024-03-06 04:21:23 100
en6 Английский Ormlis 2024-03-06 04:18:49 42
en5 Английский vaaven 2024-03-06 01:27:20 34
en4 Английский Ormlis 2024-03-06 00:42:25 226
en3 Английский Artyom123 2024-03-06 00:34:26 14
ru5 Русский Artyom123 2024-03-06 00:34:12 73
en2 Английский Artyom123 2024-03-06 00:33:30 78
en1 Английский vaaven 2024-03-05 23:24:21 3637 Initial revision for English translation (saved to drafts)
ru4 Русский Ormlis 2024-03-05 23:20:18 320
ru3 Русский Ormlis 2024-03-05 21:48:20 401
ru2 Русский Ormlis 2024-03-05 21:13:27 40
ru1 Русский Ormlis 2024-03-05 21:11:10 4016 Первая редакция (сохранено в черновиках)