Educational Codeforces Round 45 [Rated for Div. 2]

Revision en6, by PikMike, 2018-06-11 15:04:23

Hello Codeforces!

On Jun/10/2018 13:05 (Moscow time) Educational Codeforces Round 45 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. 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 Adilbek adedalic Dalabaev, Roman Ajosteen Glazov, Ivan BledDest Androsov, Mike MikeMirzayanov Mirzayanov and me.

Good luck to all participants!

Congratulations to the winners:

Rank Competitor Problems Solved Penalty
1 KrK 7 225
2 isaf27 7 231
3 BigBag 7 325
4 Motarack 7 327
5 TangentDay 7 331

Congratulations to the best hackers:

Rank Competitor Hack Count
1 halyavin 202:-52
2 2014CAIS01 26:-2
3 djm03178 20
4 saw.ai 19
5 antguz 25:-17
549 successful hacks and 525 unsuccessful hacks were made in total!

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

Problem Competitor Penalty
A tzuyu_chou 0:01
B DoomzDay 0:05
C 562225807 0:08
D teja349 0:12
E eddy1021 0:18
F nhho 0:45
G AChen142857 0:14

UPD: Editorial is out

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en6 English PikMike 2018-06-11 15:04:23 68
ru5 Russian PikMike 2018-06-11 15:03:50 70
en5 English PikMike 2018-06-11 14:24:39 2567
ru4 Russian PikMike 2018-06-11 14:24:21 2543 Мелкая правка: 'х решений!' -> 'х решений!\n\n'
en4 English PikMike 2018-06-09 15:40:29 13 Tiny change: 'will have one day to hack a' -> 'will have 12 hours to hack a'
ru3 Russian PikMike 2018-06-09 15:40:13 15 Мелкая правка: 'ьностью в один день, в течени' -> 'ьностью в 12 часов, в течени'
en3 English PikMike 2018-06-09 13:47:46 1 Tiny change: '] Androsov Mike [use' -> '] Androsov, Mike [use'
en2 English PikMike 2018-06-09 13:40:24 41 Tiny change: '] Glazov, Mike [use' -> '] Glazov, Ivan [user:BledDest] Androsov Mike [use'
ru2 Russian PikMike 2018-06-09 13:39:57 42 Мелкая правка: '09] Глазов и Михаи' -> '09] Глазов, Иван [user:BledDest] Андросов и Михаи'
ru1 Russian PikMike 2018-06-09 13:32:56 1150 Первая редакция перевода на Русский
en1 English PikMike 2018-06-09 13:28:23 1012 Initial revision (published)