News

Sponsors

Sponsors

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

Regulations of CEOI; unchanged in comparison to 2024.

Rules

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

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

Environment - virtual machine

The software environment of CEOI 2025 consists of a virtual machine that runs Ubuntu Linux 24.04 LTS. Download the files.