We gratefully acknowledge our esteemed sponsors for their valuable support, which drives the energy of this competition and inspires every participant to reach new heights.
Regulations
Regulations of CEOI; unchanged in comparison to 2024.
Rules
These competition rules are derived from those of CEOI 2024, but with quite a few changes in competition details. Relevant changes are highlighted.
Participants
CEOI 2025 warmly welcomes all participating countries and wishes them the best of luck: Austria, Bulgaria, Croatia, Czechia, Georgia, Germany, Hungary, Moldova, Poland, Romania, Serbia, Slovakia, Slovenia, Switzerland, Ukraine.
Environment - virtual machine
The software environment of CEOI 2025 consists of a virtual machine that runs Ubuntu Linux 24.04 LTS. Download the files.
