We are honoured to have been asked to host the 12nd Central-European Olympiad in Informatics in Hungary, and we are inviting you most warmly to attend. We shall do our best to make CEOI 2005 a memorable occasion, and we hope you will meet old friends and make new ones. Teams from all CEOI-countries have been invited to come to Hungary, and we shall also try to get some new countries to join.


CEOI - What is it?

The first International Olympiad in Informatics (IOI) for secondary school students, supported by UNESCO, was organised in 1989. Thirteen countries took part in the first competition, held in Pravetz (near to Sofia), Bulgaria. A year later already 25 countries sent their teams, composed of four students and two team leaders, to Minsk, Belorussian Republic, Soviet Union. In the subsequent years the number of participating countries rose to almost 50: Anavissos (near to Athens), Greece, hosted ca 24 countries in 1991; Bonn, Germany hosted already 46 in 1992; Mendoza, Argentina hosted ca 43 in 1993, and lastly Stockholm, Sweden, hosted 49 in 1994.

Inspired by the fast-growing popularity of the IOI, the Romanian team proposed in 1993 to organise a similar event for the Central European countries (as a matter of fact, they have been organising the Olympiad in Informatics of the Balkan countries since many years). Shortly thereafter, Romania officially invited the teams of Austria, Croatia, the Czech Republic, Hungary, Poland, Slovakia and Slovenia to participate in the first Central-European Olympiad in Informatics (CEOI for short). Five of these eight countries Croatia, the Czech Republic, Hungary, Poland and Romania sent their teams to Cluj in May 1994 where, upon special invitation, four more teams from Moldavia, Romania, Yugoslavia, and Turkey took also part in the contest. CEOI'94 was hosted by the "Tiberiu Popovic" secondary school in informatics, Cluj; the organising committees were headed by Ms Clara Ionescu and Dr Horia Georgescu.

Olympiads in Hungary

Hungary has a long tradition of organising scientific contests for secondary school students, in most school subjects including mathematics, physics, chemistry, biology, history, foreign languages, or most recently, in informatics. Our students are active and successful participants of international student competitions from their very beginnings.

Most recently we mentioned above, hence if we compare the world history of computer technology to the history of our national olympiad in informatics, the so called “Tihamér Nemes” National Contest, you will find it has a rather long history. Our first national informatics contest was in 1985. Today, the contest is organised in three categories for primary and secondary school students in the age groups 10—14, 15—16 and 17—19, and in three rounds (firstly, at school, then on the regional, and finally on the national level). Annually, the total number of participants is ca 4500 in the first round, and ca 120 in the final.

Hungary hosted the 2nd Central-European Olympiad in Informatics (1995, Szeged, 11 countries), 8th Central-European Olympiad in Informatics (2001, Zalaegerszeg, 13 countries) and the 8th International Olympiad in Informatics (1996, Veszprém, 60 countries).