IOI — International Olympiad in Informatics
The world final for competitive programming — the top CS credential for an applicant.
- Computer Science
- Engineering
- Who can enter
- Secondary-school students — via your country's national informatics olympiad
- What it costs
- Free for you: entry is through your national informatics olympiad, and team costs are covered by the host and your national organiser.
- When it closes
- We could not confirm this year's date against the organiser's own page, so we are not showing a countdown for it. Last published: Finals each summer; national selection in spring.
Sending this to someone sends the four facts above, not just a name — they will see who can enter and what it costs before they decide.