European Junior Olympiad in Informatics 2026

Kaunas, Lithuania · July 24–30, 2026

EJOI 2026 has concluded

The official results and competition tasks are now available.

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

Kaunas old town panorama

Host city

Kaunas

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

Latest updates

Day 7: Departures

30 July 2026

Participants head home after a wonderful week in Kaunas.

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Day 6: Closing Ceremony

29 July 2026

EJOI 2026 concluded with a closing ceremony at the Kaunas Culture Center.

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Day 5: Contest Day 2

28 July 2026

The second and final competition day is complete. A special congratulations to Andrei Nemțișor from Romania.

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Day 4: Excursion to Trakai

27 July 2026

Participants took a well-earned break and visited Trakai Island Castle.

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Day 3: Contest Day 1

26 July 2026

Contestants faced the first set of problems today. Follow the live ranking to see how teams are doing.

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Day 2: Practice Session and Opening Ceremony

25 July 2026

Contestants put their skills to the test in the practice session this morning, before the Opening Ceremony officially launched EJOI 2026 at KTU Santaka Valley.

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Day 1: Delegations arrive in Kaunas

24 July 2026

Delegations from 25 countries have begun arriving in Kaunas for EJOI 2026. Registration is open throughout the day.

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EJOI 2026 was organised by

Supported by