Educational Codeforces Round 71 [Rated for Div. 2]

Правка en6, от awoo, 2019-08-23 19:07:04

Hello Codeforces!

On Aug/22/2019 17:35 (Moscow time) Educational Codeforces Round 71 (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 7 problems and 2 hours to solve them.

The problems were invented and prepared by Roman Roms Glazov, 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 participants!

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

Hello Codeforces,

We are opening a new campus in Bangkok, Thailand!

We are delighted to introduce a strategic partnership between Harbour.Space University and the University of the Thai Chamber of Commerce – a collaborative effort powered by B.Grimm.

After 3 years of successfully disrupting education in Barcelona, with a unique educational model founded on active learning in entrepreneurship, technology, and design, as well as the most extraordinary academic and professional community on the planet to show for it, we are ready to bring the revolution to our new campus in Bangkok, Thailand.

Scholarships for our Bangkok campus are designed to completely eliminate the barrier between exceptional talents and sophisticated education: they cover the entire tuition fee as well as the cost of living expenses, and furthermore, they provide the student the valuable experience of both studying and working at Harbour.Space University.

Unique opportunities reserved for the most brilliant students from anywhere in the world, our scholarships are more than financial support – they are portals from your past to your future.

If you are graduating or have already completed a bachelor's degree, we are waiting for your applications for fully-funded Master's degree scholarships by the link below.

APPLY HERE→

Congratulations to the winners:

Rank Competitor Problems Solved Penalty
1 hehezhou 7 235
2 pekempey 7 235
3 TadijaSebez 7 238
4 Barichek 7 241
5 FurryChina 7 247

467 successful hacks and 688 unsuccessful hacks were made in total!

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

Problem Competitor Penalty
A vintage_Vlad_Makeev 0:01
B Dalgerok 0:04
C kmjp 0:12
D KenMuse 0:13
E AkshajK 0:10
F AnotherRound 0:07
G danya.smelskiy 0:26

UPD: Editorial is out

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  Rev. Язык Кто Когда Δ Комментарий
en6 Английский awoo 2019-08-23 19:07:04 68
ru8 Русский awoo 2019-08-23 19:06:16 74
ru7 Русский awoo 2019-08-23 13:00:06 558
en5 Английский awoo 2019-08-23 12:59:11 1270
en4 Английский awoo 2019-08-23 12:57:24 2196
ru6 Русский awoo 2019-08-23 12:55:43 2178
ru5 Русский Una_Shem 2019-08-21 19:55:49 159
en3 Английский Una_Shem 2019-08-21 19:53:33 176
ru4 Русский Una_Shem 2019-08-21 18:11:09 22
ru3 Русский Una_Shem 2019-08-21 18:09:43 1561
en2 Английский Una_Shem 2019-08-21 18:00:20 1623
ru2 Русский awoo 2019-08-21 15:54:42 2 Мелкая правка: 'дложено **6 задач на ' -> 'дложено **7 задач на '
en1 Английский awoo 2019-08-21 15:54:34 1276 Initial revision for English translation
ru1 Русский awoo 2019-08-21 15:54:09 1397 Первая редакция (опубликовано)