Central European Olympiad in Informatics (CEOI) 2026

The 33rd Central European Olympiad in Informatics (CEOI) is an annual informatics competition for top secondary school students from Central European countries. The 2026 edition takes place in Ljubljana, Slovenia from 2026-07-05 to 2026-07-10. The competition follows the International Olympiad in Informatics (IOI) format and consists of two days of algorithmic problem-solving, plus a practice contest, excursions and an award ceremony. Teams from regular participating countries and guest countries will compete.

Participation in two days of algorithmic competition in IOI format, a practice contest, excursions and cultural activities, and attendance at the award ceremony.

Top secondary school students from Central European countries; teams from CEOI member countries and guest countries.