Educational Codeforces Round 25

Revision en5, by awoo, 2017-09-06 21:05:51

Hello Codeforces!

On July 16, 18:05 MSK Educational Codeforces Round 25 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 7 problems and 2 hours to solve them.

The problems were prepared by Ivan BledDest Androsov and me.

Good luck to all participants!

UPD: The editorial can be found here.

Congratulations to the winners:

Rank Competitor Problems Solved Penalty
1 halyavin 7 297
2 Shik 7 433
3 Kaban-5 6 132
4 sugim48 6 160
5 JustasK 6 164

Congratulations to the best hackers:

Rank Competitor Hack Count
1 halyavin 219:-58
2 kuko- 97:-2
3 uwi 85:-7
4 Yazmau 35:-5
5 aleex 25

929 successful hacks and 587 unsuccessful hacks were made in total!

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

Problem Competitor Penalty
A Lewin 0:01
B bmerry 0:05
C shubhiks1032 0:06
D A_A_ 0:06
E bmerry 0:24
F gvaibhav21 0:39
G iiiLoveYOU2018 1:06

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en5 English awoo 2017-09-06 21:05:51 2569
ru4 Russian awoo 2017-09-06 21:05:37 2552 (опубликовано)
en4 English awoo 2017-08-02 19:13:15 0 (saved to drafts)
en3 English awoo 2017-07-16 21:13:18 83
ru3 Russian awoo 2017-07-16 21:12:47 64
ru2 Russian awoo 2017-07-15 18:44:51 2 Мелкая правка: 'es Round 24.\n\nПродо' -> 'es Round 25.\n\nПродо'
en2 English awoo 2017-07-15 18:44:15 0 (published)
en1 English awoo 2017-07-15 18:42:54 954 Initial revision for English translation
ru1 Russian awoo 2017-07-15 18:39:35 1079 Первая редакция (сохранено в черновиках)