European Junior Olympiad in Informatics 2026

Kaunas, Lithuania · July 24–30, 2026

Welcome to homepage of EJOI 2026!

The European Junior Olympiad in Informatics (EJOI) is an annual international programming competition for talented secondary school students across Europe. It features challenging algorithmic problem-solving tasks designed to inspire excellence in computer science and to encourage young people to develop their computational thinking skills.

The competition brings together some of the most promising young programmers from across Europe, providing them with an opportunity to test their abilities, exchange ideas, and connect with peers who share their passion for informatics and problem solving.

EJOI 2026 will take place in Kaunas, Lithuania, from 24–30 July 2026. The event is jointly organised by Ukraine and Lithuania, continuing the tradition of international cooperation that has been at the heart of EJOI since its founding.

More information about the competition, participation, and practical details will be published on this website in the coming months.

Kaunas old town panorama

Host city

Kaunas

EJOI 2026 will take place in Kaunas, Lithuania’s second-largest city, known for its modernist heritage and lively student community.

Latest news

Schedule

4 June 2026

The EJOI 2026 schedule is now available.

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Contest Rules

11 May 2026

Contestants can now review the official Contest Rules, covering everything from scoring and submissions to permitted items and anti-cheating policies.

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Contest Environment

11 May 2026

Details about the technical setup of the contest are now available!

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Call for Tasks

30 April 2026

The EJOI 2026 Scientific Committee is pleased to invite the competitive programming community to participate in the design of the EJOI 2026 competition tasks. The submission deadline has been extended to May 17th.

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Participants

25 March 2026

25 countries will participate in EJOI 2026, bringing together young talents from across Europe and beyond.

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EJOI 2026 is organised by

Supported by