Educational Codeforces Round 96 [Rated for Div. 2]

Revision en4, by BledDest, 2020-10-12 18:26:57

Hello Codeforces!

On Oct/11/2020 12:05 (Moscow time) Educational Codeforces Round 96 (Rated for Div. 2) will start. Note that the start time is unusual.

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 or 7 problems and 2 hours to solve them.

The problems were invented and prepared by Adilbek adedalic Dalabaev, Alex fcspartakm Frolov and me. Also huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.

Good luck to all the participants!

UPD: The editorial is here.

Congratulations to the winners:

Rank Competitor Problems Solved Penalty
1 WZYYN 7 186
2 137_345_2814 7 194
3 jiangly 7 200
4 LayCurse 7 203
5 dreamoon_love_AA 7 258

Congratulations to the best hackers:

Rank Competitor Hack Count
1 ViciousCoder 100:-9
2 ManasG 45:-13
3 Valera_Grinenko 57:-40
4 Voldmort 36:-3
5 fstzyh 38:-9

858 successful hacks and 2258 unsuccessful hacks were made in total!

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

Problem Competitor Penalty
A Sevlll 0:01
B jkchen 0:03
C alireza_kaviani 0:03
D jkchen 0:12
E MagicSpark 0:05
F LayCurse 0:36
G MagicSpark 0:36

History

 
 
 
 
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ru5 Russian BledDest 2020-10-12 18:29:39 2706
en4 English BledDest 2020-10-12 18:26:57 0 (published)
en3 English BledDest 2020-10-12 18:26:41 2717 (saved to drafts)
ru4 Russian Una_Shem 2020-10-10 16:00:49 22
en2 English Una_Shem 2020-10-10 15:58:57 0 (published)
ru3 Russian Una_Shem 2020-10-10 15:58:46 0 (опубликовано)
ru2 Russian BledDest 2020-10-10 12:44:23 56
en1 English BledDest 2020-10-10 12:44:03 1205 Initial revision for English translation (saved to drafts)
ru1 Russian BledDest 2020-10-10 12:41:36 1283 Первая редакция (сохранено в черновиках)