Educational Codeforces Round 112 [Rated for Div. 2]

Revision en5, by awoo, 2021-07-31 18:11:27

Hello Codeforces!

On Jul/30/2021 17:35 (Moscow time) Educational Codeforces Round 112 (Rated for Div. 2) 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 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, Vladimir vovuh Petrov, Ivan BledDest Androsov, Maksim Neon Mescheryakov and me. Also huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.

Good luck to all the participants!

Our friends at Harbour.Space also have a message for you:

Codeforces and Harbour.Space

Hello once again, Codeforces!

It’s been a week since we completed our Harbour.Space Scholarship Contest. It’s was an intense journey, but we are excited to share the results of the contest and take this time to give a word of appreciation to every participant.

One more big shout out to the authors and round coordinator who made this contest happen in a short period of time:

Thank you again for all your hard work.

Congratulations to all the winners and runner-ups who got the opportunity to go through the admissions process and who are eligible for a full scholarship.

1st-3rd Places: Ali.Kh, Yousef_Salama, antOntrygubX_y

4th-10th Places: sunyx, windazz, IMRED, Meijer, Prosto, kpw29, Huah2

11th-15th Places: dhruvsomani, adamant, Kaitokid, khiro, c8kbf

We are pleased to announce that we have reviewed all the winners and will make a final decision about additional scholarships soon. Stay tuned and keep an eye on your inbox!

Remember, to claim the scholarship you need to respond to the email sent 3-4 days ago. And just to make sure email addresses weren’t misspelt, we want to take this opportunity and ask Yousef_Salama, Huah2, adamant, c8kbf, Naseem17 to contact us via email ( or directly on Codeforces platform (Harbour.Space)

Congratulations to the winners:

Rank Competitor Problems Solved Penalty
1 SSRS_ 6 92
2 tourist 6 120
3 WZYYN 6 127
4 Heltion 6 131
5 Tlatoani 6 140

57 successful hacks and 612 unsuccessful hacks were made in total!

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

Problem Competitor Penalty
A Geothermal 0:01
B tourist 0:03
C kaiboy 0:04
D dario2994 0:07
E tourist 0:11
F rainboy 0:30

UPD: Editorial is out


  Rev. Lang. By When Δ Comment
en5 English awoo 2021-07-31 18:11:27 1541
ru6 Russian awoo 2021-07-31 18:11:06 1521
en4 English awoo 2021-07-31 17:29:14 70
ru5 Russian awoo 2021-07-31 17:28:51 72
ru4 Russian Una_Shem 2021-07-29 21:26:39 10 Мелкая правка: '-29].\n\n_Еще раз спасибо за ' -> '-29].\n\n_Спасибо за '
ru3 Russian Una_Shem 2021-07-29 21:10:30 2055
en3 English Una_Shem 2021-07-29 19:02:24 6
ru2 Russian Una_Shem 2021-07-29 19:00:19 0 (опубликовано)
en2 English Una_Shem 2021-07-29 19:00:10 2185 (published)
en1 English awoo 2021-07-29 13:28:41 1247 Initial revision for English translation (saved to drafts)
ru1 Russian awoo 2021-07-29 13:27:58 1361 Первая редакция (сохранено в черновиках)