Educational Codeforces Round 31

Revision en3, by awoo, 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 vovuh 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 No_One_Loves_The_Weak 18
2 halyavin 22:-10
3 dreamoon_love_AA 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 vintage_Vlad_Makeev 0:06
D cyand1317 0:18
E eddy1021 0:36
F zscoder 0:35

UPD: Editorial is uploaded

History

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