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 compete individually, i.e. a team score is not calculated. Competitors are selected through national
competitive programming contests.
The contest consists of two days computer programming, solving problems of an
algorithmic nature. The structure of these competition days is described in the article about the
International Olympiad in Informatics (IOI), which served as a role model for the more local CEOI.
The first CEOI was held in 1994 in Romania (founder of the CEOI), five years after the first IOI.
List of CEOI websites and locations
CEOI 2021 was supposed to be held in
Zagreb,
Croatia, was held online instead (1- 5 September 2021).
CEOI 2016 was held in
Piatra Neamț, Romania (18 - 23 July 2016). Participants: Bulgaria, Croatia, Czech Republic, Georgia, Germany, Hungary, Moldova, Poland, Romania, Slovakia, Slovenia, Switzerland.
CEOI 2015 was held in
Brno, Czech Republic (29 June - 4 July 2015). Participants: Croatia, Czech Republic, Georgia, Germany, Hungary, Poland, Romania, Slovakia, Slovenia, Switzerland.
CEOI 2014 was held in
Jena, Germany (18 - 24 June 2014).
CEOI 2013 was held in
Primošten, Croatia (13 - 19 October 2013). Participants: Croatia, Czech republic, Germany, Hungary, Poland, Romania, Switzerland, Slovakia and Slovenia.
CEOI 2012 was held in
Tata, Hungary (7-13 July 2012). Participants: Bulgaria, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Israel, Switzerland, The Netherlands, Slovakia and Slovenia.
CEOI 2011 was held in
Gdynia, Poland (7-12 July 2011). Participants: Bulgaria, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Slovenia and Switzerland.
CEOI 2010 was held in
Košice, Slovakia (12-19 July 2010). Participants: Bulgaria, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, and Switzerland.[1]
CEOI 2009 was held in
Târgu Mureş, Romania (8-14 July 2009). Participants: Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Switzerland, USA., Serbia, Moldova.
CEOI 2008 was held in
Dresden, Germany (6-12 July 2008). Participants: Croatia, Czech Republic, Germany, Hungary, Israel, Poland, Romania, Saxony, Slovakia.
CEOI 2007 was held in
Brno, Czech Republic (1 - 7 July 2007). Participants: Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Czech Republic II, Brno.
CEOI 2006 was held in
Vrsar, Croatia (1 - 8 July 2006). Participants: Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Croatia II, Croatia III.
CEOI 2005 was held in
Sárospatak, Hungary (28 July - 5 August, 2005). Participants: Bosnia and Herzegovina, Croatia, Czech Republic, Estonia, France, Germany, Hungary, Poland, Romania, Sárospatak, Slovakia, Spain, The Netherlands.
CEOI 2004 was held in
Rzeszów, Poland (13 July - 17 July 2004). Participants: Bosnia & Herzegovina, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia
CEOI 2003 was held in
Münster, Germany (5 - 12 July 2003). Participants: Croatia, Poland, Czech Republic, Slovenia, Netherlands, USA, Hungary, Slovakia, Romania, Iran, Germany, Westphalia
CEOI 2002 was held in
Košice, Slovakia (30 June - 6 July 2002). Participants: Austria, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Slovenia, The Netherlands, Iran
CEOI 2001 was held in
Zalaegerszeg, Hungary (10 - 17 August 2001). Participants: Austria, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Slovenia, Estonia, Finland, Italy, The Netherlands
CEOI 2000 was held in
Cluj-Napoca, Romania (24 - 31 August 2000). Participants: Croatia, Czech Republic, Germany, Hungary, Moldova, Netherlands, Poland, Romania, Slovakia, Slovenia, USA
CEOI 1999 was held in
Brno, Czech Republic (2 - 9 September 1999). Participants: Bosnia-Herzegovina, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Slovenia, USA
CEOI 1998 was held in
Zadar, Croatia (20 - 27 May 1998). Participants: Bosnia-Herzegovina, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Slovenia
CEOI 1997 was held in
Nowy Sącz, Poland (17 - 24 July 1997). Participants: Belarus, Croatia, Estonia, Germany, Hungary, Latvia, Lithuania, Netherlands, Poland, Romania, Slovakia, Ukraine, USA, Yugoslavia
CEOI 1996 was held in
Bratislava, Slovak Republic (9 - 13 October 1996). Participants: Croatia, Czech Republic, Hungary, Poland, Romania, Slovakia, Slovenia
CEOI 1995 was held in
Szeged, Hungary (29 May - 3 June 1995). Participants: Belarus, Croatia, Czech Republic, Estonia, Hungary, Lithuania, Poland, Romania, Slovakia, Ukraine, Yugoslavia
CEOI 1994 was held in
Cluj-Napoca, Romania (27 - 31 May 1994). Participants: Croatia, Czech Republic, Hungary, Moldova, Poland, Romania, Turkey, Yugoslavia
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 compete individually, i.e. a team score is not calculated. Competitors are selected through national
competitive programming contests.
The contest consists of two days computer programming, solving problems of an
algorithmic nature. The structure of these competition days is described in the article about the
International Olympiad in Informatics (IOI), which served as a role model for the more local CEOI.
The first CEOI was held in 1994 in Romania (founder of the CEOI), five years after the first IOI.
List of CEOI websites and locations
CEOI 2021 was supposed to be held in
Zagreb,
Croatia, was held online instead (1- 5 September 2021).
CEOI 2016 was held in
Piatra Neamț, Romania (18 - 23 July 2016). Participants: Bulgaria, Croatia, Czech Republic, Georgia, Germany, Hungary, Moldova, Poland, Romania, Slovakia, Slovenia, Switzerland.
CEOI 2015 was held in
Brno, Czech Republic (29 June - 4 July 2015). Participants: Croatia, Czech Republic, Georgia, Germany, Hungary, Poland, Romania, Slovakia, Slovenia, Switzerland.
CEOI 2014 was held in
Jena, Germany (18 - 24 June 2014).
CEOI 2013 was held in
Primošten, Croatia (13 - 19 October 2013). Participants: Croatia, Czech republic, Germany, Hungary, Poland, Romania, Switzerland, Slovakia and Slovenia.
CEOI 2012 was held in
Tata, Hungary (7-13 July 2012). Participants: Bulgaria, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Israel, Switzerland, The Netherlands, Slovakia and Slovenia.
CEOI 2011 was held in
Gdynia, Poland (7-12 July 2011). Participants: Bulgaria, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Slovenia and Switzerland.
CEOI 2010 was held in
Košice, Slovakia (12-19 July 2010). Participants: Bulgaria, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, and Switzerland.[1]
CEOI 2009 was held in
Târgu Mureş, Romania (8-14 July 2009). Participants: Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Switzerland, USA., Serbia, Moldova.
CEOI 2008 was held in
Dresden, Germany (6-12 July 2008). Participants: Croatia, Czech Republic, Germany, Hungary, Israel, Poland, Romania, Saxony, Slovakia.
CEOI 2007 was held in
Brno, Czech Republic (1 - 7 July 2007). Participants: Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Czech Republic II, Brno.
CEOI 2006 was held in
Vrsar, Croatia (1 - 8 July 2006). Participants: Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Croatia II, Croatia III.
CEOI 2005 was held in
Sárospatak, Hungary (28 July - 5 August, 2005). Participants: Bosnia and Herzegovina, Croatia, Czech Republic, Estonia, France, Germany, Hungary, Poland, Romania, Sárospatak, Slovakia, Spain, The Netherlands.
CEOI 2004 was held in
Rzeszów, Poland (13 July - 17 July 2004). Participants: Bosnia & Herzegovina, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia
CEOI 2003 was held in
Münster, Germany (5 - 12 July 2003). Participants: Croatia, Poland, Czech Republic, Slovenia, Netherlands, USA, Hungary, Slovakia, Romania, Iran, Germany, Westphalia
CEOI 2002 was held in
Košice, Slovakia (30 June - 6 July 2002). Participants: Austria, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Slovenia, The Netherlands, Iran
CEOI 2001 was held in
Zalaegerszeg, Hungary (10 - 17 August 2001). Participants: Austria, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Slovenia, Estonia, Finland, Italy, The Netherlands
CEOI 2000 was held in
Cluj-Napoca, Romania (24 - 31 August 2000). Participants: Croatia, Czech Republic, Germany, Hungary, Moldova, Netherlands, Poland, Romania, Slovakia, Slovenia, USA
CEOI 1999 was held in
Brno, Czech Republic (2 - 9 September 1999). Participants: Bosnia-Herzegovina, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Slovenia, USA
CEOI 1998 was held in
Zadar, Croatia (20 - 27 May 1998). Participants: Bosnia-Herzegovina, Croatia, Czech Republic, Germany, Hungary, Poland, Romania, Slovakia, Slovenia
CEOI 1997 was held in
Nowy Sącz, Poland (17 - 24 July 1997). Participants: Belarus, Croatia, Estonia, Germany, Hungary, Latvia, Lithuania, Netherlands, Poland, Romania, Slovakia, Ukraine, USA, Yugoslavia
CEOI 1996 was held in
Bratislava, Slovak Republic (9 - 13 October 1996). Participants: Croatia, Czech Republic, Hungary, Poland, Romania, Slovakia, Slovenia
CEOI 1995 was held in
Szeged, Hungary (29 May - 3 June 1995). Participants: Belarus, Croatia, Czech Republic, Estonia, Hungary, Lithuania, Poland, Romania, Slovakia, Ukraine, Yugoslavia
CEOI 1994 was held in
Cluj-Napoca, Romania (27 - 31 May 1994). Participants: Croatia, Czech Republic, Hungary, Moldova, Poland, Romania, Turkey, Yugoslavia