Educational Codeforces Round 31

Revision en3, by PikMike, 2017-10-29 18:10:42

Hello Codeforces!

On October 27, 17:05 MSK Educational Codeforces Round 31 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.

The round will be unrated for all users and will be held on extented ACM ICPC rules. After the end of the contest you will have one day 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 prepared by Ivan BledDest Androsov, Vladimir 0n25 Petrov, Alexey Perforator Ripinen, Mike MikeMirzayanov Mirzayanov and me.

Good luck to all participants!

Congratulations to the winners:

Rank Competitor Problems Solved Penalty
1 biGinNer 6 175
2 natsugiri 6 228
3 palayutm 6 283
4 LHiC 6 293
5 eddy1021 6 295

Congratulations to the best hackers:

Rank Competitor Hack Count
1 Hinata_On_Fire 18
2 halyavin 22:-10
3 dreamoon 33:-35
4 kuko- 15
5 STommydx 12:-1

259 successful hacks and 368 unsuccessful hacks were made in total!

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

Problem Competitor Penalty
A eddy1021 0:01
B eddy1021 0:02
C gritukan 0:06
D cyand1317 0:18
E eddy1021 0:36
F zscoder 0:35

UPD: Editorial is uploaded

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en3 English PikMike 2017-10-29 18:10:42 70
ru3 Russian PikMike 2017-10-29 18:10:15 74
ru2 Russian PikMike 2017-10-29 17:56:02 2447
en2 English PikMike 2017-10-29 17:55:13 2462
en1 English PikMike 2017-10-26 20:55:31 1083 Initial revision for English translation (published)
ru1 Russian PikMike 2017-10-26 20:51:55 1226 Первая редакция (сохранено в черновиках)