Educational Codeforces Round 130 [Rated for Div. 2]

Revision en6, by Una_Shem, 2022-06-22 17:10:48

Hello Codeforces!

On Jun/12/2022 17:35 (Moscow time) Educational Codeforces Round 130 (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:


Hey, Codeforces!

We are thrilled to announce an amazing work & study opportunity with Vodafone.

Vodafone Group has partnered with Harbour.Space University to offer Bachelor's and Master’s degree scholarships in Computer Science, Data Science, Cyber Security and Front-end Development as well as MBAs and work experience in one of the leading UK telecommunication companies.

Vodafone Group is opening a new technological HUB in Malaga, an international center of excellence dedicated to research and development of technical solutions, such as Secure Networks, 5G and 6G development, Open RAN, IoT, MPN & MEC and UCC for Vodafone Business, platforms and enterprise solutions.

We are looking for various junior to mid level positions (or senior) to fill in different fields such as:

  • Front-end Development
  • Full-stack Development
  • Backend Development
  • Technical Architecture
  • Enterprise Architecture



General Requirements:

  • High School Diploma or Bachelor's Degree with prior work experience
  • CV or LinkedIn Profile (your Codeforces rank has to be added to your CV)
  • Proficiency in English (Spanish is a plus)

Requirements for Frontend Developer:

  • At least 1-3 years of experience in Angular.
  • At least 1-3 year of experience working in React.
  • Strong knowledge of web platform fundamentals: HTML, JavaScript and CSS.
  • Design and implementation of low-latency, high-availability, and performant applications
  • Definition / construction of CI / CD pipelines using tools such as Jenkins, Sonar, Kiuwan.

Requirements for Full-Stack Developer:

  • Minimum 3 years of proven experience in platform development (CDI/DevOps based environment). With one or more of the following:
  • Java SE/ Javascript
  • Scripting languages, i.e. python, perl, shell scripts.
  • Proven experience in backend & frontend software systems & web applications.
  • Proven experience with HTPP, MQTT, LwM2M, Kafka, various databases (SQL and non-SQL).
  • Proficiency in cloud-native development.
  • Hands-on experience with CDI tools.

Requirements for Java Developer:

  • Industry experience with Software Platforms in Linux, on-premises and cloud
  • Solid understanding of server technologies
  • Strong academic knowledge and professional experience of software development: Java Enterprise, Oracle, Linux, Windows
  • Good understanding of system monitoring tools and automated testing frameworks
  • Experience with SQL, XML, JSON and CSV
  • Experience of providing and maintaining transformations and APIs for customers and partners
  • Good understanding of Databases – Oracle, MongoDB, ElasticSearch.
  • Good understanding of java frameworks, SpringBoot, Spring technologies
  • Good understanding of container systems (docker) and orchestrators (docker compose, Kubernetes) and messaging technologies, kafka, rabbitmq
  • Good understanding of Unix shell, Perl, python to perform automation and maintenance tasks and CI/CD environments
  • Educated to BSc degree level in telecommunications or related discipline with Software Development experience

Good luck on your round, and see you next time!

Harbour.Space University

UPD: Editorial is out


  Rev. Lang. By When Δ Comment
en6 English Una_Shem 2022-06-22 17:10:48 0 (published)
en5 English Una_Shem 2022-06-22 17:10:20 70 (saved to drafts)
ru5 Russian Una_Shem 2022-06-22 17:09:08 70
en4 English awoo 2022-06-13 19:00:58 73
ru4 Russian awoo 2022-06-13 19:00:41 75
ru3 Russian Una_Shem 2022-06-12 00:56:16 4368
en3 English Una_Shem 2022-06-11 18:05:57 8 Tiny change: ' to offer' -> ' to offer'
ru2 Russian Una_Shem 2022-06-11 18:02:29 0 (опубликовано)
en2 English Una_Shem 2022-06-11 18:02:21 4182 (published)
en1 English awoo 2022-06-11 16:36:10 1247 Initial revision for English translation (saved to drafts)
ru1 Russian awoo 2022-06-11 16:35:30 1361 Первая редакция (сохранено в черновиках)