Hello Codeforces!

On 12.02.2020 17:35 (Московское время) Educational Codeforces Round 82 (рейтинговый для Див. 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 the participants!

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

Hi Codeforces!

This is not the last call for participation, but we’re almost there. We have extended the early bird discount deadline of Hello Muscat ICPC Programming Bootcamp until this Sunday, February 16th. Remember you can request a support letter to present to your university, employer or local companies to sponsor your participation and trip to the bootcamp.

We would also like to remind you that if your team is going to the ICPC World Finals in Moscow this June, you can fill out the form below to see if you are eligible for a full scholarship for our Bootcamp (flights not included), and we will contact you within three days to let you know about the results.

UPD: There will be 7 problems in the round

Congratulations to the winners:

39 successful hacks and 147 unsuccessful hacks were made in total!

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

UPD: Editorial is out