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Educational Codeforces Round 78 [Rated for Div. 2]

Revision en5, by pikmike, 2019-12-20 19:49:40

Hello Codeforces!

On Dec/19/2019 17:35 (Moscow time) Educational Codeforces Round 78 (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 extended 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 6 problems and 2 hours to solve them.

The problems were invented and prepared by Roman Roms Glazov, Adilbek adedalic Dalabaev, Vladimir Vovuh Petrov, Ivan BledDest Androsov, Maksim Ne0n25 Mescheryakov and me. Also huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.

Good luck to all the participants!

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

Codeforces and Harbour.Space

Hi Codeforces!

The deadline to apply for our Master’s Scholarship in Bangkok is very soon!

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1. Submit your CV to see if you are an eligible candidate for the scholarship
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Also, don’t forget to read our newest blogs!

Congratulations to the winners:

Rank Competitor Problems Solved Penalty
1 HIR180 6 106
2 neal 6 162
3 receed 6 172
4 Geothermal 6 174
5 cerberus97 6 179

Congratulations to the best hackers:

Rank Competitor Hack Count
1 Akulyat 24
2 hoke_t 20
3 dhxh 18:-1
4 SweetPrinces 14
5 WNG 13:-1
255 successful hacks and 458 unsuccessful hacks were made in total!

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

Problem Competitor Penalty
A Dalgerok 0:01
B neal 0:04
C HIR180 0:08
D __.__ 0:17
E gxnncrx1993 0:20
F wxhtxdy 0:07

UPD: Editorial is out

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en5 English pikmike 2019-12-20 19:49:40 72
ru6 Russian pikmike 2019-12-20 19:49:19 74
en4 English pikmike 2019-12-20 19:29:48 230
ru5 Russian pikmike 2019-12-20 19:29:33 230
en3 English pikmike 2019-12-20 19:25:46 2653
ru4 Russian pikmike 2019-12-20 19:25:30 2633
ru3 Russian Una_Shem 2019-12-18 19:18:14 1770
ru2 Russian Una_Shem 2019-12-18 18:18:36 0 (опубликовано)
en2 English Una_Shem 2019-12-18 18:04:45 1653 (published)
en1 English pikmike 2019-12-18 17:02:04 1280 Initial revision for English translation (saved to drafts)
ru1 Russian pikmike 2019-12-18 17:00:53 1396 Первая редакция (сохранено в черновиках)