Educational Codeforces Round 149 [Rated for Div. 2]

Revision en6, by awoo, 2023-05-26 16:18:21

Hello Codeforces!

On May/25/2023 17:35 (Moscow time) Educational Codeforces Round 149 (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, 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:


Seize the Opportunity: Full Scholarships Available at Harbour.Space Bangkok

Exciting news Codeforces! Harbour.Space Bangkok Campus is offering 10 full scholarships to study Computer Science or Data Science!

Join us at Harbour.Space in the heart of Bangkok, Thailand, and unlock a world of opportunities. We're proud to share that we recently emerged victorious at SWERC, one of the most prestigious programming competitions.

At Harbour.Space, you'll have the privilege of learning from renowned experts like Mike MikeMirzayanov Mirzayanov and Kamil Errichto Debowski. These exceptional individuals bring their wealth of knowledge and industry insights to create a dynamic learning experience.

By becoming a part of our vibrant and inclusive community, you'll collaborate with brilliant minds, fostering a culture of growth and innovation. Our students, who are qualified and talented, have the opportunity to compete in ICPC, showcasing their skills on a global stage.

Join our alumni who have gone on to work at leading companies such as IBM, Google, Deloitte, Amazon and more, paving their way to success.


Study Commitment: 3 hours/day. You will complete 15 modules (each three weeks long) in one year. The daily class workload is 3 hours, plus homework to complete in your own time.

University requirements

  • CV
  • High School/Bachelor's Degree
  • English proficiency
  • Medalist in any Programming competition is a plus!

Make sure to apply before June the 30th, 2023, to be eligible for the scholarship and reduced application fee!

Ready to embark on your path to success? Apply now here.

We can't wait to welcome you to our amazing community.

All the best, The Harbour.Space Team

UPD: Editorial is out


  Rev. Lang. By When Δ Comment
en6 English awoo 2023-05-26 16:18:21 71
ru5 Russian awoo 2023-05-26 16:18:03 75
ru4 Russian Una_Shem 2023-05-25 18:23:55 27 Мелкая правка: '023-05-24], [user:pashka,2023-05-24], и [user:E' -> '023-05-24] и [user:E'
en5 English Una_Shem 2023-05-25 18:23:30 40
en4 English Una_Shem 2023-05-25 00:49:44 2 Tiny change: '-05-24] Marvin, and Ka' -> '-05-24] Mavrin, and Ka'
ru3 Russian Una_Shem 2023-05-24 22:41:52 2337
en3 English Una_Shem 2023-05-24 17:54:33 91
ru2 Russian Una_Shem 2023-05-24 17:50:27 0 (опубликовано)
en2 English Una_Shem 2023-05-24 17:50:19 2162 (published)
en1 English awoo 2023-05-24 14:41:34 1215 Initial revision for English translation (saved to drafts)
ru1 Russian awoo 2023-05-24 14:41:02 1327 Первая редакция (сохранено в черновиках)