Educational Codeforces Round 157 [Rated for Div. 2]

Revision en4, by awoo, 2023-11-04 18:54:46

Hello Codeforces!

On Nov/03/2023 17:35 (Moscow time) Educational Codeforces Round 157 (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, Artem Ferume Ilikaev, Ruslan AcidWrongGod Kapralov, Alexey I_Remember_Olya_ashmelev Shmelev, Alex fcspartakm Frolov, Dmitry DmitryKlenov Klenov, Dmitry dmitryme Mescheryakov, Elena elena Rogacheva and me. Also, huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.

Please note that the problems of this round partially intersect with the problems of the Southern and Volga Russian Regional Contest. If you took part in that contest, please refrain from participating in the round.

Good luck to all the participants!

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


BIMBA Y LOLA has partnered with Harbour.Space University to offer a Master's Degree scholarship in Computer Science, as well as work experience as a Junior Java Developer at the Development Team in BIMBA y LOLA.

At BIMBA Y LOLA, they understand the importance of counting on the most creative professionals, those with an enterprising spirit and passion for their work. They are seduced by talent, sensibility, initiative, an analytical nature, commitment to quality, a keen eye and a love for detail. And, of course, a clear vocation for fashion.

If you share these values, we are offering a young, dynamic and stimulating environment; one in which to progress and develop professionally; a company present in over 18 countries and embarked on an ambitious international expansion plan.

All successful applicants will be eligible for a 100% Tuition Fee Scholarship (29,900€/year) provided by BIMBA Y LOLA.


  • Spanish and English language proficiency is a MUST
  • Bachelor's degree in the field of Mathematics, Statistics, Data Science, Computer Science or similar

The candidate should be familiar with:

  • Agile Methodologies (scrum)
  • GIT
  • Java 8/11+
  • Spring
  • Maven
  • JUnit
  • Mockito
  • UML
  • HTML
  • CSS
  • Javascript
  • ReactJS
  • SQL Server/MySQL

Desirable skills:

  • Azure
  • Azure DevOps — Pipelines
  • Docker
  • Kubernetes
  • Helm
  • Jira
  • Confluence

Apprenticeship Summary:

  • 100% Tuition Fee Scholarship to study a Master’s Degree in Computer Science for one year.
  • 4 hours/day internship on campus.
  • Competitive compensation.
  • Opportunity to join the company full-time after graduation.
  • Please note that preselected candidates will be requested to pay a non-refundable Application Fee of 125€ for assessment.

Candidate’s commitment:

  • Study Commitment: 4 hours/day
  • ‍You will complete 15 modules (each three weeks long) in one year.
  • Daily class workload is 3 hours, plus homework to complete in your own time.
  • Work Commitment: 4+ hours/day

Immerse yourself in the professional world during your apprenticeship. You’ll learn from the best and get to apply your newly acquired knowledge in the field from day one.

Apply here →

UPD: Editorial is out


  Rev. Lang. By When Δ Comment
en4 English awoo 2023-11-04 18:54:46 71
ru4 Russian awoo 2023-11-04 18:54:24 75
ru3 Russian Una_Shem 2023-11-02 18:03:27 3155 (опубликовано)
en3 English Una_Shem 2023-11-02 17:59:27 3086 (published)
en2 English awoo 2023-11-02 17:25:40 44
ru2 Russian awoo 2023-11-02 17:23:11 331
en1 English awoo 2023-11-02 17:21:12 1795 Initial revision for English translation (saved to drafts)
ru1 Russian awoo 2023-11-02 17:11:53 1534 Первая редакция (сохранено в черновиках)