Programming Competitions in Slovakia
- The Correspondence Seminar in Programming
- Slovak National Olympiad in Informatics
- Internet Problem Solving Contest
- Programujem s COFAXom (only in Slovak language)
Programming Competions and Problem Archives Worldwide
- International Olympiad in Informatics - international competition for secondary school students. Homepage contains useful information about the Olympiad, tasks from previous olympiads as well as links to national olympiads and other contests in many countries.
- ACM International Collegiate Programming Contest - competition for teams representing universities. Homepage of the competition contains links to archives of ACM problems from both final and regional rounds.
- ACM problem set archive with online judge - you can download a problem, solve it and send it for automatic judging.
- Daniel Marx's Programming Contests Problems Archive - problem archive in Hungary
- Let's Solve IT - problem archive in Thailand
- Arsene von Wyss's Programming Contest Problem Archive - problem archive in Switzerland
- Belarussian national olympiads in informatics