Codeforces Round #691, based on ByteDance — Moscow Workshops Online Contest

Правка en5, от Endagorion, 2020-12-19 19:26:03

Hello, Codeforces community!

I'm glad to invite you to Codeforces Round #691 (Div. 1) and Codeforces Round #691 (Div. 2), which will be held on Dec/19/2020 12:35 (Moscow time). The round will be rated for both divisions.

The problems were taken (mostly) from the ByteDance — Moscow Workshops Online Contest, which is happening at the same time. They were prepared by me, AndreySergunin, and amethyst0. We are very thankful to the testers: low_, kalki411, ecnerwala, Tima, IITianUG, thenymphsofdelphi, mohammedehab2002, namanbansal013, Redux for their time and great feedback. Also big thanks to Bytedance instructors chenjb and jqdai0815 for testing and reviewing the Bytedance online contest.

ByteDance is a global technology company operating a range of platforms that allow people across languages, cultures and geographies to create, discover and connect. ByteDance has partnered with Moscow Workshops and Codeforces to organize a top tier and exclusive training camp for the International Collegiate Programming Contest. The upcoming Programming Camp will be held in Beijing from February 20th to 26th, 2021.

ByteDance — Moscow Workshops Online Contest is an opportunity to participate as teams in this camp.

You can find more information about this training camp, including registration and prizes at https://programcamp.bytedance.com/.

Important update: please be informed that the Bytedance online team contest ends 25 minutes after the Codeforces round does. For this reason, we ask you not to discuss the problems publicly during that time, until 3pm MSK. Code and testcases public display will also be disabled during that time. Thank you for your understanding.

Scoring distribution:

Div. 2: 750-1000-1500-2000-2500-3000

Div. 1: 500-1000-1500-2000-2250-3500

Final update: thanks for participating, hope you had fun! Let's hear it for the winners:

Div. 1 (the only contestants to solve 5 problems):

  1. tourist
  2. Um_nik
  3. 142857
  4. maroonrk
  5. gop2024

Div. 2:

  1. spepd — the only Div.2 contestant to solve 5 problems!
  2. LebronDurant
  3. diuven_fanclub
  4. wk_tzc
  5. CTP_314

Here's a half-baked version of the editorial.

Happy winter holidays to all of you, and see you again on the leaderboards!

История

 
 
 
 
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  Rev. Язык Кто Когда Δ Комментарий
en6 Английский Endagorion 2020-12-20 03:49:29 29
en5 Английский Endagorion 2020-12-19 19:26:03 715
en4 Английский Endagorion 2020-12-19 11:04:35 175
en3 Английский Endagorion 2020-12-18 21:42:08 377 Tiny change: 'e contest.\n\nByteDa' -> 'e contest. \n\nByteDa'
en2 Английский Endagorion 2020-12-18 13:54:30 346 Tiny change: 'com/).\n\n**Impo' -> 'com/).\n\n\n\n**Impo'
en1 Английский Endagorion 2020-12-18 01:35:30 1562 Initial revision (published)