Codeforces Round 938 (Div. 3)

Revision en6, by mainyutin, 2024-04-09 19:33:36

Hello! Codeforces Round 938 (Div. 3) will start at Apr/08/2024 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 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 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.

Problems have been created and written by our team: mainyutin, vmanosin7, ssor96 and ZergTricky.

We would like to thank:

  1. Vladosiya for help with ideas and great coordination of the round;

  2. FairyWinx, sevlll777 for red testing;

  3. ace5, Nickir, senjougaharin, vladmart for yellow testing;

  4. natalina for blue testing;

  5. bitthal04 for cyan testing;

  6. Alequisk, Mohamed_Hesham for green testing;

  7. MikeMirzayanov for Polygon and Codeforces platforms.

Good luck!

UPD: There was an issue with the validation of hacks for problem G, but it has now been resolved. All successful hacks will be rejudged. Pretests were not affected by the issue and remain unchanged.

UPD2: Editorial is out.

Tags div 3, round 938


  Rev. Lang. By When Δ Comment
en6 English mainyutin 2024-04-09 19:33:36 150
ru7 Russian mainyutin 2024-04-09 19:33:19 150
ru6 Russian Vladosiya 2024-04-09 18:07:35 77
en5 English Vladosiya 2024-04-09 18:06:54 75 Tiny change: ')\n\n**UPD**: [Edito' -> ')\n\n**UPD2**: [Edito'
ru5 Russian mainyutin 2024-04-09 11:00:05 192
en4 English mainyutin 2024-04-09 10:57:13 206
en3 English mainyutin 2024-04-07 22:20:01 73
ru4 Russian mainyutin 2024-04-07 22:19:41 75
en2 English mainyutin 2024-04-07 20:10:12 0 (published)
ru3 Russian mainyutin 2024-04-07 20:08:24 0 (опубликовано)
ru2 Russian mainyutin 2024-04-07 20:05:22 2 Мелкая правка: 'унда;\n\n7, [user:Mik' -> 'унда;\n\n7. [user:Mik'
en1 English mainyutin 2024-04-07 20:05:05 2157 Initial revision for English translation (saved to drafts)
ru1 Russian mainyutin 2024-04-07 19:59:02 2338 Первая редакция (сохранено в черновиках)