출처장소하위 출처채점 가능한 문제총 문제
CEOI 1997Nowy Sącz, Poland206
CEOI 1998Zadar, Croatia236
CEOI 1999Brno, Czech Republic226
CEOI 2000Cluj-Napoca, Romania200
CEOI 2001Zalaegerszeg, Hungary215
CEOI 2002Košice, Slovakia256
CEOI 2003Münster, Germany246
CEOI 2004Rzeszów, Poland377
CEOI 2005Sárospatak, Hungary246
CEOI 2006Vrsar, Croatia266
CEOI 2007Brno, Czech Republic21415
CEOI 2008Dresden, Germany256
CEOI 2009Târgu Mureş, Romania256
CEOI 2010Košice, Slovakia266
CEOI 2011Gdynia, Poland377
CEOI 2012Tata, Hungary236
CEOI 2013Primošten, Croatia21515
CEOI 2014Jena, Germany256
CEOI 2015Brno, Czech Republic31616
CEOI 2016Piatra-Neamț, Romania21212
CEOI 2017ljubljana, Slovenia389
CEOI 2018Warsaw, Poland266
CEOI 2019Bratislava, Slovakia399
CEOI 2020Nagyakanizsa, Hungary266
CEOI 2021Zagreb, Croatia266