Each contestant is given a desktop Linux computer running Ubuntu 24.04 with XFCE desktop environment. The computers have Intel i5-13400 processors, 32 GB of RAM and a 1TB NVMe SSD, and are equipped with a Finnish keyboard (typically also used in Swedish and Estonian), a mouse and a monitor.

The computers have the following software packages installed on them:

• Shells:
  • bash, zsh, fish, dash
• Text editors:
  • emacs, gedit, kate, mcedit, nano, neovim, neovim-qt, scite, vim
• IDEs:
  • geany, vs-code
• Compilers and interpreters:
  • gcc, g++, clang
  • python3, pypy3
• Utilities:
  • firefox
  • gdb
  • gnome-calculator
  • mc
  • valgrind

CSES is used as the contest system. The language versions both in the contest computers and in the contest system are as follows:

• C++: g++ 13.3.0, C++20 supported (C++23 experimental)
• CPython: 3.12.3
• PyPy: 7.3.15 (Python 3.9.18)