Codeforces Round #811 (Div. 3)

Revision en8, by Vladosiya, 2022-08-03 12:13:07

Hello! Codeforces Round 811 (Div. 3) will start at Aug/01/2022 17:35 (Moscow time). You will be offered 6-8 problems with expected difficulties to compose an interesting competition for participants with ratings up to 1600. However, all of you who wish to take part and have a rating of 1600 or higher, can register for the round unofficially.

The round will be hosted by rules of educational rounds (extended ACM-ICPC). Thus, solutions will be judged on preliminary tests during the round, and after the round, it will be a 12-hour phase of open hacks.

You will be given 6-8 problems and 2 hours and 15 minutes to solve them.

Note that the penalty for the wrong submission in this round (and the following Div. 3 rounds) is 10 minutes.

Remember that only the trusted participants of the third division will be included in the official standings table. As it is written by link, this is a compulsory measure for combating unsporting behavior. To qualify as a trusted participant of the third division, you must:

take part in at least five rated rounds (and solve at least one problem in each of them), do not have a point of 1900 or higher in the rating. Regardless of whether you are a trusted participant of the third division or not, if your rating is less than 1600, then the round will be rated for you.

Thanks to MikeMirzayanov for the platform, help with ideas for problems and for coordination of our work. Problems have been created and written by ITMO University teams: MikeMirzayanov, myav, Gol_D, Aris, DmitriyOwlet, me Vladosiya.

Also many thanks to yorky, Jostic11, turmax, oversolver, ivanz, antonis.white, molney, KerakTelor, andrey.starodubtsev, Ahmad45123, myway, sofiaasta, Muhammad98 for testing the contest and valuable feedback.

Good luck!

UPD: Editorial


  Rev. Lang. By When Δ Comment
en8 English Vladosiya 2022-08-03 12:13:07 66
ru9 Russian Vladosiya 2022-08-03 12:12:10 63 Мелкая правка: '\n**UPD**:[Разбор](h' -> '\n**UPD**: [Разбор](h'
en7 English Vladosiya 2022-08-01 00:17:21 211
ru8 Russian Vladosiya 2022-08-01 00:17:03 211
en6 English Vladosiya 2022-07-31 08:43:03 34 Tiny change: '022-07-31]\n for te' -> '022-07-31],\n[user: antonis.white]\n for te'
ru7 Russian Vladosiya 2022-07-31 08:42:38 34 Мелкая правка: '022-07-31]\n за тес' -> '022-07-31],\n[user: antonis.white]\n за тес'
en5 English Vladosiya 2022-07-31 08:22:44 84
ru6 Russian Vladosiya 2022-07-31 08:22:06 84
en4 English Vladosiya 2022-07-30 14:55:53 4
ru5 Russian Vladosiya 2022-07-30 14:55:31 4
en3 English Vladosiya 2022-07-30 14:49:38 0 (published)
ru4 Russian Vladosiya 2022-07-30 14:49:28 0 (опубликовано)
en2 English Vladosiya 2022-07-30 14:49:07 52 Tiny change: 'thanks to \n for tes' -> 'thanks to [user:yorky],\n[user:Jostic11]\n for tes'
ru3 Russian Vladosiya 2022-07-30 14:48:47 52 Мелкая правка: 'е спасибо \n за тест' -> 'е спасибо [user:yorky],\n[user:Jostic11]\n за тест'
en1 English Vladosiya 2022-07-30 00:43:49 1800 Initial revision for English translation (saved to drafts)
ru2 Russian Vladosiya 2022-07-30 00:41:03 1 Мелкая правка: 'Привет! Во [contest_' -> 'Привет! В [contest_'
ru1 Russian Vladosiya 2022-07-30 00:40:45 1936 Первая редакция (сохранено в черновиках)