HCC Logo

Helvetic Coding Contest

28th March 2026 - Co Building, EPFL


The Helvetic Coding Contest, known as HC², is the biggest programming contest in Switzerland. Held over one day on the EPFL campus, it gathers over 200 participants.

This year, the thirteenth edition of HC² will take place in the Co Building of EPFL on the 28th of March 2026.

Registration for this year is now open ! The registration fee is 15 CHF which includes goodies, breakfast, lunch and dinner for the day.

Details

Eligibility and Format

Every person, irrespective of age, gender, nationality, or any other factor, is welcome to participate. You may form teams of up to 3 people.

Programming Languages and Tools

We support C++, Java, Python, and C. You will be able to code using Emacs, Geany, Vim, Code::Blocks, Visual Studio Code, Atom, Kate, Eclipse, and GDB.

Detailed rules

You may want to read the detailed rules for competition format

Resources

Previous HC² competition problems: 2019, 2024

Schedule

Time Slot Activity
10:30 — 11:30 Check-in
11:30 — 12:00 Opening Ceremony
12:15 — 12:45 Practice Contest
12:45 — 13:30 Lunch
13:30 — 18:00 Main Contest
18:15 — 19:00 Closing Ceremony
19:00 — 20:00 Dinner

Sponsors

2024 Edition Pictures

Contest Floor
Team Discussion
Award Ceremony
Balloons
Lunch
Contest Floor II