Kotlin

Kotlin Heroes is a fun and challenging contest with problems designed to be interesting for programmers of all levels. Solve algorithmic problems, learn more about Kotlin, and get a chance to win prizes! The main contest will take place on April 7, 2025, but the practice round is already open – s…

We hosted Advent of Code livestreams, shared tips and solutions. We also invited you to solve puzzles using Kotlin. Now, we’d like to announce the winners!

Kotlin Heroes: Episode 11 is coming up on September 30, 2024, presenting a perfect chance for you to dive into algorithmic problem-solving using Kotlin. This competition is open to coders of all levels.

To all students and recent graduates: The Kotlin Foundation is excited to announce the launch of the Kotlin Multiplatform Contest! Showcase your creativity and coding skills by building a cross-platform project using Kotlin Multiplatform and win a trip to KotlinConf 2025, the largest Kotlin event of the year. 

A big thank you goes out to everyone who joined us for Advent of Code in Kotlin this year! From December 1 through 12, we shared daily livestreams of puzzle solutions. If you missed any of the action, you can watch the recordings on our YouTube playlist.

Are you a student or recent graduate? Create a cross-platform project in Kotlin, if your entry takes one of the top spots, you’ll win a trip to KotlinConf'24!

Take part in Advent of Code 2022 in Kotlin and win prizes. We invite you to join us in participating in Advent of Code in Kotlin this year. It’s a great way to practice your problem-solving, keep your Kotlin skills sharp, compete, and learn from the fantastic community surrounding the event. And it’s a wonderful way to get your hands on some exclusive Kotlin prizes!

Showcase your creativity by building a Kotlin Multiplatform project using the technology that will help shape the future. If your entry makes it into the top 3, you’ll win a trip to KotlinConf’23!

UPD: Given the current circumstances, we have decided to postpone Kotlin Heroes until further notice. Thank you for your understanding. Kotlin Heroes is our Kotlin-only contest hosted by the Codeforces. It is a great way to play around with Kotlin’s features, learn something new, and practice usi…

If you’ve been thinking of new ways to level up your Kotlin coding skills, programming competitions are a great way to do so. Starting from June 22, you can polish your Kotlin skills and practice solving algorithmic problems in a dedicated practice round on the Codeforces platform. On June 29, th…

Registration for Kotlin Heroes: Episode 6 is open. This coding challenge is 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, …

Welcome to Kotlin Heroes 5: ICPC Round!