Educational Codeforces Round 55 [Rated for Div. 2]

Revision en5, by awoo, 2018-11-30 14:09:42

On Nov/28/2018 17:35 (Moscow time) Educational Codeforces Round 55 (Rated for Div. 2) will start.

Series of Educational Rounds continue being held as Harbour.Space University initiative! You can read the details about the cooperation between Harbour.Space University and Codeforces in the blog post.

This round will be rated for the participants with rating lower than 2100. It will be held on extented ACM ICPC rules. The penalty for each incorrect submission until the submission with a full solution is 10 minutes. After the end of the contest you will have 12 hours to hack any solution you want. You will have access to copy any solution and test it locally.

You will be given 7 problems and 2 hours to solve them.

The problems were invented and prepared by Mike MikeMirzayanov Mirzayanov, Roman Roms Glazov, Adilbek adedalic Dalabaev, Vladimir vovuh Petrov, Ivan BledDest Androsov and me.

Good luck to all participants!

Our friends at Harbour.Space also have a message for you:

Hello Codeforces!

We are excited to announce that the Hello Muscat Programming Bootcamp registration is open! The camp will take place from March 9th to March 15th, 2019, and our early bird discount of 15% is going until December 15th!

This next edition in our Hello Programming Bootcamp will run in parallel with the traditional Moscow ICPC Workshop — both Bootcamps’ contests will be identical, and contestants will be able to see their position in the General Leaderboard. Every day, both camps will be competing simultaneously, 4,000 kilometers from each other!


We would also like to remind you that the deadline for applying to the Master’s in Robotics programme scholarship will close November 30th, so we encourage you to check out the website to see the all the requirements and apply!


UPD: You can discuss the problems after the contest at a local Discord server.


Congratulations to the winners:

Rank Competitor Problems Solved Penalty
1 I_love_Tanya_Romanova 7 157
2 theodor.moroianu 7 330
3 halyavin 7 361
4 Radewoosh 6 158
5 palayutm2001 6 190

Congratulations to the best hackers:

Rank Competitor Hack Count
1 halyavin 131:-8
2 zdw1999 55:-4
3 MarcosK 42:-1
4 ismagilov.code 64:-48
5 garipov.roma 48:-24

1354 successful hacks and 1065 unsuccessful hacks were made in total!

And finally people who were the first to solve each problem:

Problem Competitor Penalty
A I_love_Tanya_Romanova 0:02
B Dalgerok 0:04
C I_love_Tanya_Romanova 0:08
D hitman623 0:15
E lqs2015 0:11
F ko_osaga 0:47
G RomaWhite 0:08

UPD3: Editorial is out


  Rev. Lang. By When Δ Comment
ru4 Russian awoo 2018-11-30 14:13:24 2671
en5 English awoo 2018-11-30 14:09:42 2697
en4 English awoo 2018-11-29 17:34:35 72
ru3 Russian awoo 2018-11-29 17:33:44 71
en3 English awoo 2018-11-28 19:00:46 127
en2 English awoo 2018-11-27 17:24:30 50 Tiny change: 'epared by Roman [us' -> 'epared by Mike [user:MikeMirzayanov] Mirzayanov, Roman [us'
ru2 Russian awoo 2018-11-27 17:23:36 51
en1 English awoo 2018-11-27 16:21:32 2704 Initial revision for English translation
ru1 Russian awoo 2018-11-27 16:20:19 2844 Первая редакция (опубликовано)