Central European Olympiad in Informatics article about the International Olympiad in Informatics (IOI), which served as a role model for the invention of the more local CEOI. The first CEOI was held in 1994 (Romania, founder of the CEOI), five years after the first IOI. Central European Olympiad in Informatics The Central European Olympiad in Informatics (CEOI) is an annual informatics competition for secondary school students. Each of the participating central European countries (plus one or two guest countries, and a local team from the host area) sends a team of up to four contestants, a team leader and a deputy team leader. The contestants
International Astronomy Olympiad International Astronomy Olympiad The International Astronomy Olympiad (IAO) is an internationally recognized annual astronomy scientific-educating event for high school students (14–18 years old), which includes an intellectual competition between these students. It is one of the International Science Olympiads. The Eurasian Astronomical Society founded the IAO in 1996. The competing part of IAO consists of three rounds: a theoretical, an observational, and a practical. Problems of the theoretical round involve classical problems in branches of astronomy, astrophysics, space and planetary physics, and maybe hypothetical situations. The observational round involves recognizing stars, constellations, estimating star magnitude and angular distance, working with