awoo's blog

By awoo, history, 35 hours ago, translation, In English

Hello Codeforces!

On Feb/23/2024 17:35 (Moscow time) Educational Codeforces Round 162 (Rated for Div. 2) will start.

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, Roman Roms Glazov and me. Also, huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.

Good luck to all the participants!

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By awoo, history, 5 weeks ago, translation, In English

1922A - Tricky Template

Idea: Roms

Tutorial
Solution (awoo)

1922B - Forming Triangles

Idea: Roms

Tutorial
Solution (Roms)

1922C - Closest Cities

Idea: BledDest

Tutorial
Solution (Roms)

1922D - Berserk Monsters

Idea: BledDest

Tutorial
Solution (Neon)

1922E - Increasing Subsequences

Idea: Roms

Tutorial
Solution (Neon)

1922F - Replace on Segment

Idea: Roms

Tutorial
Solution (Neon)

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By awoo, history, 5 weeks ago, translation, In English

Hello Codeforces!

On Jan/18/2024 17:35 (Moscow time) Educational Codeforces Round 161 (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, Roman Roms Glazov and me. Also, huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.

Big thanks to the testers shnirelman and Minder for their valuable advice and suggestions!

Good luck to all the participants!

UPD: Editorial is out

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By awoo, history, 2 months ago, translation, In English

1914A - Problemsolving Log

Idea: BledDest

Tutorial
Solution (awoo)

1914B - Preparing for the Contest

Idea: Roms

Tutorial
Solution (BledDest)

1914C - Quests

Idea: Roms

Tutorial
Solution (Neon)

1914D - Three Activities

Idea: BledDest

Tutorial
Solution (awoo)

1914E1 - Game with Marbles (Easy Version)

1914E2 - Game with Marbles (Hard Version)

Idea: BledDest

Tutorial
Solution (adedalic)

1914F - Programming Competition

Idea: BledDest

Tutorial
Solution (Neon)

1914G1 - Light Bulbs (Easy Version)

1914G2 - Light Bulbs (Hard Version)

Idea: BledDest

Tutorial
Solution (BledDest)

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By awoo, history, 2 months ago, translation, In English

Hello, Codeforces!

On Dec/19/2023 17:35 (Moscow time) the Codeforces Round 916 (Div. 3) will start. You will be offered 6-8 problems with expected difficulties to compose an interesting competition for participants with ratings up to 1600. However, all of you who wish to take part and have a rating of 1600 or higher, can register for the round unofficially.

The round will be hosted by rules of educational rounds (extended ICPC). Thus, during the round, solutions will be judged on preliminary tests, and after the round it will be a 12-hour phase of open hacks.

You will be given 2 hours and 15 minutes to solve 6-8 problems. The penalty for a wrong submission is equal to 10 minutes.

We remind you that only the trusted participants of the third division will be included in the official standings table. As it is written on the blog which you can access by this link, this is a compulsory measure for combating unsporting behavior. To qualify as a trusted participant of the third division, you must:

  • take part in at least five rated rounds (and solve at least one problem in each of them),
  • not have a point of 1900 or higher in the rating.

Regardless of whether you are a trusted participant of the third division or not, if your rating is less than 1600, then the round will be rated for you.

The problems were invented and prepared by Adilbek adedalic Dalabaev, Ivan BledDest Androsov, Maksim Neon Mescheryakov, Roman Roms Glazov, Alexander fcspartakm Frolov, and me. Also, big thanks to Vladislav Vladosiya Vlasov for his excellent coordination.

Thanks to Mike MikeMirzayanov Mirzayanov for Codeforces and Polygon systems!

And, the last but not the least, big thanks to the testers FBI, Kalashnikov and SonOfHonor for their valuable advice and suggestions!

Good luck in the contest! I hope you'll enjoy solving the problems we have prepared.

UPD: Editorial is out

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By awoo, history, 3 months ago, translation, In English

1902A - Binary Imbalance

Idea: BledDest

Tutorial
Solution (awoo)

1902B - Getting Points

Idea: adedalic

Tutorial
Solution (adedalic)

1902C - Insert and Equalize

Idea: Roms и BledDest

Tutorial
Solution (awoo)

1902D - Robot Queries

Idea: BledDest

Tutorial
Solution (Neon)

1902E - Collapsing Strings

Idea: Roms

Tutorial
Solution (Roms)

1902F - Trees and XOR Queries Again

Idea: BledDest

Tutorial
Solution (BledDest)

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By awoo, history, 3 months ago, translation, In English

Hello Codeforces!

On Dec/03/2023 17:35 (Moscow time) Educational Codeforces Round 159 (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, Roman Roms Glazov and me. Also, huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.

Good luck to all the participants!

UPD: Editorial is out

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By awoo, history, 3 months ago, translation, In English

1901A - Line Trip

Idea: BledDest

Tutorial
Solution (Neon)

1901B - Chip and Ribbon

Idea: Roms

Tutorial
Solution (Roms)

1901C - Add, Divide and Floor

Idea: BledDest

Tutorial
Solution (awoo)

1901D - Yet Another Monster Fight

Idea: BledDest

Tutorial
Solution (vovuh)

1901E - Compressed Tree

Idea: BledDest

Tutorial
Solution (Neon)

1901F - Landscaping

Idea: adedalic

Tutorial
Solution (adedalic)

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By awoo, history, 3 months ago, translation, In English

Hello Codeforces!

On Nov/24/2023 17:35 (Moscow time) Educational Codeforces Round 158 (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, Roman Roms Glazov and me. Also, huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.

Good luck to all the participants!

UPD: Editorial is out

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By awoo, history, 4 months ago, translation, In English

1895A - Treasure Chest

Idea: BledDest

Tutorial
Solution (awoo)

1895B - Points and Minimum Distance

Idea: fcspartakm

Tutorial
Solution (fcspartakm)

1895C - Torn Lucky Ticket

Idea: BledDest

Tutorial
Solution (awoo)

1895D - XOR Construction

Idea: AcidWrongGod

Tutorial
Solution (Neon)

1895E - Infinite Card Game

Idea: BledDest

Tutorial
Solution (awoo)

1895F - Fancy Arrays

Idea: Neon

Tutorial
Solution (Neon)

1895G - Two Characters, Two Colors

Idea: BledDest

Tutorial
Solution (BledDest)

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By awoo, history, 4 months ago, translation, In English

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 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:

Harbour.Space
WORK & STUDY OPPORTUNITY IN BARCELONA — BIMBA Y LOLA x HARBOUR.SPACE UNIVERSITY

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.

Requirements:

  • 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

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By awoo, history, 4 months ago, translation, In English

1886A - Sum of Three

Idea: fcspartakm

Tutorial
Solution (fcspartakm)

1886B - Fear of the Dark

Idea: BledDest

Tutorial
Solution (Neon)

1886C - Decreasing String

Idea: Roms

Tutorial
Solution (Roms)

1886D - Monocarp and the Set

Idea: Roms

Tutorial
Solution (Roms)

1886E - I Wanna be the Team Leader

Idea: BledDest

Tutorial
Solution (awoo)

1886F - Diamond Theft

Idea: BledDest

Tutorial
Solution (Neon)

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By awoo, history, 5 months ago, translation, In English

Hello Codeforces!

On Oct/09/2023 17:35 (Moscow time) Educational Codeforces Round 156 (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, Roman Roms Glazov, Alex fcspartakm Frolov 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 Qualification stage of the Southern and Volga Russian Regional Contest. If you took part in the qualification, please refrain from participating in the round.

Good luck to all the participants!

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

Harbour.Space
FULLY FUNDED SCHOLARSHIPS for Masters in Data Science and Computer Science

Scholarships for Master's students in Computer Science and Data Science are available in Harbour.Space University Barcelona campus!

Scholarship Summary:

  • Fully funded scholarship (29.900 €/year) to study a Master’s degree in Data Science or Computer Science for two years
  • Successful applicants will become part of the University’s “Talent pool” and will be shown to the sponsoring companies. In case the candidate is picked for the Work&Study Program from our industry partner, the student starts an internship with a commitment to study 3 hours/day and work for 4 hour/day

Please note preselected candidates will be requested to pay a non-refundable application fee of 85€ to study at Harbour.Space University.

Candidate’s commitment:

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.

Candidate’s requirements:

  • Bachelor's degree in the field of Mathematics, Statistics, Data Science, Computer Science or similar
  • English proficiency
  • Advanced knowledge and experience in Python, SQL, Spark/Scala, and bash
  • Experienced use of Big Data technologies: Spark, HDFS, Kafka, etc.
  • Hands-on experience with Data Science techniques: feature engineering,
  • Strong ML knowledge
  • Strong Software Engineering Background
  • Problem-solving aptitude

Note: These scholarships are only available for qualified applicants with a bachelor’s degree.

Apply here →

UPD: Editorial is out

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By awoo, history, 5 months ago, translation, In English

Hello Codeforces!

On Sep/24/2023 17:35 (Moscow time) Educational Codeforces Round 155 (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, Roman Roms Glazov 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:

Harbour.Space
FULLY FUNDED SCHOLARSHIPS for Masters in Data Science and Computer Science

Scholarships for Master's students in Computer Science and Data Science are available in Harbour.Space University Barcelona campus!

Scholarship Summary:

  • Fully funded scholarship (29.900 €/year) to study a Master’s degree in Data Science or Computer Science for two years
  • Successful applicants will become part of the University’s “Talent pool” and will be shown to the sponsoring companies. In case the candidate is picked for the Work&Study Program from our industry partner, the student starts an internship with a commitment to study 3 hours/day and work for 4 hour/day

Please note preselected candidates will be requested to pay a non-refundable application fee of 85€ to study at Harbour.Space University.

Candidate’s commitment:

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.

Candidate’s requirements:

  • Bachelor's degree in the field of Mathematics, Statistics, Data Science, Computer Science or similar
  • English proficiency
  • Advanced knowledge and experience in Python, SQL, Spark/Scala, and bash
  • Experienced use of Big Data technologies: Spark, HDFS, Kafka, etc.
  • Hands-on experience with Data Science techniques: feature engineering,
  • Strong ML knowledge
  • Strong Software Engineering Background
  • Problem-solving aptitude
Apply here →

UPD: Editorial is out

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By awoo, history, 6 months ago, In English

1861A - Prime Deletion

Idea: BledDest

Tutorial
Solution (BledDest)

1861B - Two Binary Strings

Idea: Roms

Tutorial
Solution (Roms)

1861C - Queries for the Array

Idea: BledDest

Tutorial
Solution 1 (Roms)
Solution 2 (BledDest)

1861D - Sorting By Multiplication

Idea: Roms

Tutorial
Solution (Roms)

1861E - Non-Intersecting Subpermutations

Idea: BledDest

Tutorial
Solution (BledDest)

1861F - Four Suits

Idea: BledDest

Tutorial
Solution (BledDest)

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By awoo, history, 6 months ago, translation, In English

Hello Codeforces!

On Aug/31/2023 17:35 (Moscow time) Educational Codeforces Round 154 (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, Roman Roms Glazov and me. Also, huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.

Additionally, big thanks to the tester stAngel for their valuable advice and suggestions!

Good luck to all the participants!

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

Harbour.Space
WORK & STUDY OPPORTUNITY IN BARCELONA @HARBOUR.SPACE UNIVERSITY

Harbour.Space University has partnered with Giga (UNICEF) to offer Master’s degree scholarships in the field of Data Science, as well as work experience.

We are looking for various junior to mid level candidates:

Data Scientist:

  • Strong ML knowledge
  • Experience with Data Visualization Tools like matplotlib, ggplot, d3.js., Tableau that helps to visually encode data
  • Excellent Communication Skills – it is incredibly important to describe findings to a technical and non-technical audience
  • Strong Software Engineering Background
  • Hands-on experience with data science tools
  • Problem-solving aptitude
  • Analytical mind and great business sense
  • Degree in Computer Science, Engineering or relevant field is preferred

Data Analyst:

  • Cleansing and preparing data
  • Analyzing and exploring data
  • Expertise in statistics
  • Analyzing and visualizing data
  • Reports and dashboards
  • Communication and writing
  • Expertise in the domain
  • Solution-oriented

All successful applicants will be eligible for a 100% tuition fee scholarship (29.900 €/year) provided by the partner company.

CANDIDATE’S COMMITMENT

Study Commitment: 3 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.

REQUIREMENTS:

  • Industry experience
  • International exposure
  • Eager to learn
  • Sustainability is a key topic for you
  • You want to work for an NGO
Apply here →

UPD: Editorial is out

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By awoo, history, 6 months ago, translation, In English

1860A - Not a Substring

Idea: BledDest

Tutorial
Solution (Neon)

1860B - Fancy Coins

Idea: BledDest

Tutorial
Solution 1 (BledDest)
Solution 2 (BledDest)

1860C - Game on Permutation

Idea: BledDest

Tutorial
Solution (Neon)

1860D - Balanced String

Idea: BledDest

Tutorial
Solution (Neon)

1860E - Fast Travel Text Editor

Idea: BledDest

Tutorial
Solution (awoo)

1860F - Evaluate RBS

Idea: BledDest

Tutorial
Solution (awoo)

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By awoo, history, 6 months ago, translation, In English

Hello Codeforces!

On Aug/17/2023 17:35 (Moscow time) Educational Codeforces Round 153 (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:

Harbour.Space
WORK & STUDY OPPORTUNITY IN BARCELONA @HARBOUR.SPACE UNIVERSITY

Harbour.Space University has partnered with Giga (Unicef) to offer Master’s degree scholarships in the field of Computer Science and Front-end Development, as well as work experience.

We are looking for various junior to mid level candidates:

Front-end Developer:

This student will work closely with the blockchain developer and product lead to contribute to the design and implementation of user interfaces for the company's blockchain-based prototypes. They will be responsible for translating UI/UX design wireframes into functional and visually appealing web applications, ensuring seamless user experiences. The student will collaborate with blockchain and backend developers and designers to integrate front-end components with server-side logic and optimize application performance. They will also be involved in testing, debugging, and maintaining the front-end codebase. The intern will have the opportunity to gain practical experience in front-end development within the context of blockchain technology and contribute to the Giga’s mission of connecting schools to the internet.

  • Solid understanding of HTML, CSS, and JavaScript
  • Familiarity with front-end frameworks and tools such as React or Vue.js.
  • Strong problem-solving skills, attention to detail, and a passion for creating intuitive user interfaces are essential

Full Stack Developer:

  • Interest and experience in web application development, data products and OpenAPIs
  • Comfortable with on-cloud deployment services (preferably Azure), Git and CI/CD pipeline and deployment processes
  • Experience with open-source projects is highly preferred
  • Strong ML knowledge
  • Experience with data visualization tools like matplotlib, ggplot, d3.js, Tableau that help to visually encode data
  • Excellent communication skills, — it is incredibily important to describe findings to a technical and non-technical audience
  • Strong software engineering background
  • Hands-on experience with data science tools
  • Problem-solving aptitutde
  • Analytical mind and great business sense
  • Degree in computer science, engineering or relevant field is preferred

All successful applicants will be eligible for a 100% tuition fee scholarship (29.900 €/year) provided by the partner company.

CANDIDATE’S COMMITMENT

Study Commitment: 3 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.

REQUIREMENTS:

  • Industry experience
  • International exposure
  • Eager to learn
  • Sustainability is a key topic for you
  • You want to work for an NGO
Apply here →

UPD: Editorial is out

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By awoo, history, 8 months ago, translation, In English

1845A - Запрещенное число

Idea: BledDest

Tutorial
Solution (awoo)

1845B - Идем вместе

Idea: adedalic

Tutorial
Solution (adedalic)

1845C - Сильный пароль

Idea: BledDest

Tutorial
Solution (awoo)

1845D - Рейтинговая система

Idea: BledDest

Tutorial
Solution (Neon)

1845E - Коробки и шары

Idea: BledDest

Tutorial
Solution (awoo)

1845F - Пловцы в бассейне

Idea: adedalic

Tutorial
Solution (adedalic)

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By awoo, history, 8 months ago, translation, In English

Hello Codeforces!

On Jun/29/2023 17:35 (Moscow time) Educational Codeforces Round 151 (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:

Harbour.Space
WORK & STUDY OPPORTUNITY IN BARCELONA — IDS x HARBOUR.SPACE UNIVERSITY

Intentionally Designed Solutions (IDS) has partnered with Harbour.Space University to offer Master’s degree scholarships to study Front-end Development, as well as work experience as a Front-end Engineer in a leading product development studio specializing in web-based solutions, including websites and web applications.

All successful applicants will be eligible for a 100% Tuition Fee Scholarship (29.900 €/year) provided by the Intentionally Designed Solutions (IDS).

CANDIDATE’S COMMITMENT

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.

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.

RESPONSIBILITIES

  • Collaborate with cross-functional teams to develop and implement innovative front-end solutions that align with project requirements and design specifications.
  • Write clean, efficient, and maintainable code using modern front-end technologies, including Typescript and Svelte.
  • Ensure seamless integration of front-end components with back-end systems, leveraging technologies such as MongoDB and Firebase.
  • Demonstrate a basic understanding of smart contract technology, enabling the integration of wallets and blockchain functionality into web-based products.
  • Lead and mentor junior developers, conducting code reviews and providing guidance to improve code quality and development practices.
  • Drive the development arm of IDS's business by identifying opportunities to optimize processes, enhance efficiency, and improve overall team productivity.

REQUIREMENTS:

  • Minimum of 2 years of professional experience in front-end development, with a focus on web-based products.
  • Strong proficiency in Typescript and Svelte, with a solid understanding of front-end frameworks and libraries.
  • Experience with back-end integration, particularly with MongoDB and Firebase.
  • Basic understanding of smart contract technology and its application in web development.
  • Previous experience managing and mentoring developers, conducting code reviews, and improving development processes.
  • Excellent problem-solving, communication, and collaboration skills.
  • Bachelor’s degree or equivalent experience.
  • Advanced English level.
Apply Now →

UPD: Editorial is out

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By awoo, history, 8 months ago, translation, In English

1841A - Game with Board

Idea: BledDest

Tutorial
Solution (BledDest)

1841B - Keep it Beautiful

Idea: BledDest

Tutorial
Solution (awoo)

1841C - Ranom Numbers

Idea: BledDest

Tutorial
Solution 1 (Neon)
Solution 2 (BledDest)

1841D - Pairs of Segments

Idea: BledDest

Tutorial
Solution (BledDest)

1841E - Fill the Matrix

Idea: BledDest

Tutorial
Solution (awoo)

1841F - Monocarp and a Strategic Game

Idea: TheWayISteppedOutTheCar and BledDest

Tutorial
Solution (TheWayISteppedOutTheCar)

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By awoo, history, 8 months ago, translation, In English

Hello Codeforces!

On Jun/12/2023 17:35 (Moscow time) Educational Codeforces Round 150 (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, Dmitry TheWayISteppedOutTheCar Piskalov and me. Also, huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.

Additionally, big thanks to the testers ashmelev, shnirelman and Fanarill for their valuable advice and suggestions!

Good luck to all the participants!

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

Harbour.Space

Hello Codeforces,

Thinking about what to do with your one wild life? You are amazing in every way imaginable! You are young and immensely talented, so why not setting yourself up for a lifetime adventure — studying abroad with Harbour.Space University. Our experienced ICPC coaches are looking for new talent to join the Harbour.Space teams in SWERC and Asia Pacific regions.

Every year and all around the year, Harbour.Space University is offering full and partial Bachelor and Master scholarships to study in Barcelona and Bangkok for the academic year 2023/24 for all aspiring and eligible ICPC candidates. We qualified 2 times for the ICPC world finals and it is only the beginning of skills deployment for Spacers.

Sign up using this form to be invited to join our week-long summer camp in Spain, to get to know each other and meet the HS faculty and staff.

Our upcoming Welcome Camp will take place in August 1-7, nearby Barcelona.

After we spend a week together, you can be offered a place to study at our university. You don’t even have to leave Spain after the camp, if you secure an offer.

This is your real chance to experience two amazing cities with people from all over the world and get a diploma and accreditation too. Study, compete, work, travel, teach, enjoy the sun, sea, mountains, and all these while networking with the legends of competitive programming, future high-tech entrepreneurs and famous startup investors.

We are a no nonsense university that will immerse you into the international culture and spirit of adventure, improve your English and help you build unprecedented confidence and technical expertise to ace the ICPC. With us, you can do what you love everyday, as we never force you to take courses that you do not find interesting! When we say full academic freedom, we mean it. Your personal growth and everyday development are our utmost priority. We recognise your special abilities and therefore needs, everyone at Harbour.Space is unique and here for a reason.

Our caring admission officers are always there for you to answer any questions you might have about studying and working in Barcelona or Bangkok campuses.

Come and help us build the university of the future. Join the Stars.

Lana Velikanova, The Founder and CEO

(Please feel free to add me to your LinkedIn network)

UPD: Editorial is out

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By awoo, history, 9 months ago, translation, In English

1837A - Grasshopper on a Line

Idea: BledDest

Tutorial
Solution (awoo)

1837B - Comparison String

Idea: BledDest

Tutorial
Solution (BledDest)

1837C - Best Binary String

Idea: BledDest

Tutorial
Solution (Neon)

1837D - Bracket Coloring

Idea: BledDest

Tutorial
Solution (BledDest)

1837E - Playoff Fixing

Idea: BledDest

Tutorial
Solution (awoo)

1837F - Editorial for Two

Idea: BledDest

Tutorial
Solution 1 (awoo)
Solution 2 (awoo)

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By awoo, history, 9 months ago, translation, In English

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:

Harbour.Space

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.

Requirements:

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

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By awoo, history, 9 months ago, translation, In English

1832A - New Palindrome

Idea: BledDest

Tutorial
Solution (Neon)

1832B - Maximum Sum

Idea: BledDest

Tutorial
Solution (awoo)

1832C - Contrast Value

Idea: BledDest

Tutorial
Solution (Neon)

1832D1 - Red-Blue Operations (Easy Version)

Idea: BledDest

Tutorial

1832D2 - Red-Blue Operations (Hard Version)

Idea: BledDest

Tutorial
Solution (awoo)

1832E - Combinatorics Problem

Idea: BledDest

Tutorial
Solution (BledDest)

1832F - Zombies

Idea: BledDest

Tutorial
Solution (awoo)

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