Kotlin Heroes: Episode 6 Is Here

Registration for Kotlin Heroes: Episode 6 is open. This coding challenge is co-hosted by JetBrains and Codeforces, the most popular platform for programming contests. It is a great opportunity to learn about the features and capabilities of the Kotlin language.
Register now and save the date: March 9, 2:35 PM UTC.

“Programming contests are a great way to test your programming skills and improve them. Whether you are a seasoned competitive programmer or a Kotlin developer who has never participated in a programming contest before, you’ll find these contests useful, entertaining, and thought-provoking. They’re designed to give everyone a chance to win prizes. We hope that you’ll find the Kotlin language fun and enjoyable to use and that you will keep using it in other programming contests.”
— Roman Elizarov, ICPC Live Director, Project Lead for Kotlin

The contest features a set of problems designed for both beginners and seasoned competitive programmers. Competitive programming is a mind sport where contestants write programs to solve precisely formulated algorithmic problems within strict constraints. The problems range from simple ones, which can be solved by any developer and don’t require much code, to complex ones that demand knowledge of specific algorithms and data structures, and lots of experience.

The top three winners will receive prizes of $512, $256, and $128, respectively. The top 50 contestants will win a Kotlin Heroes t-shirt and exclusive Kotlin stickers. Every competitor who solves at least one problem will enter a drawing for one of the 50 exclusive Kotlin Heroes t-shirts.

Before the Kotlin Heroes: Episode 6 begins, you are invited to test your programming skills in a practice round. On March 9, you are invited to take the real challenge and compete for prizes.

Check out our page about Kotlin Heroes to learn more about the format of the competition, and resources available for preparation.

To get ready for the challenge, you can read our tutorial on competitive programming in Kotlin and watch the videos from our Competitive Programming playlist on YouTube.

See you soon!

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Kotlin Heroes 5: ICPC Round is Approaching

Welcome to Kotlin Heroes 5: ICPC Round, the new round of our regular competitive programming contest co-hosted by JetBrains and Codeforces! Register now and save the date – November 12, 2020.

This is a special round for which we’ve joined forces with the world-famous ICPC, the International Collegiate Programming Contest. It’s a rare chance to test your skills and see how you compare to some of the brightest coding minds.

Kotlin Heroes is fun for everyone regardless of their level of programming experience, and every participant has an equal chance of winning a prize!

What is Kotlin Heroes

Kotlin Heroes is a Kotlin-only coding contest created and hosted by JetBrains and Codeforces, the most popular platform for coding competitions. The previous four rounds attracted more than 4000 participants, including tourist, Egor, Benq, eatmore, Golovanov399, Petr, ecnerwala, and other famous competitive programming champions.

This is a great opportunity to learn about Kotlin’s capabilities, as well as a chance to practice coding and adopt a powerful modern programming language.

I like a challenge, sign me up!


Participants have 2 hours and 30 minutes to solve as many problems as they can. Each problem set includes tasks of varying difficulty to suit everyone from beginners to the most advanced programmers. Participants are faced with up to 10 problems of increasing complexity and ranked according to the number of correct solutions they come up with.


  • The top three winners will be awarded with $512, $256, and $128.
  • The top 50 contestants win Kotlin Heroes t-shirts and stickers.
  • Everyone who gets through the first task will be entered into a raffle to win one of 50 Kotlin Heroes t-shirts.
  • To mark this special round, we’ll be issuing participation certificates from the Kotlin team, JetBrains, Codeforces, and ICPC to everyone who takes part.
  • There is also an outstanding special recognition prize from the ICPC: ICPC- experience, an invitation to the Moscow World Finals 2021, all-inclusive on-site (hotel, meals, ceremonies, and swag, are included; visa, flights, transportation to the contest location is not).

Join Kotlin Heroes!

Who can attend

Kotlin Heroes welcomes everyone. The contest has no limitations on experience or professional background.

How to prepare

We hope to see you at Kotlin Heroes 5: ICPC Round on November 12!

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