International Olympiad in Informatics (English Wikipedia)

Simões, Gabriel (31 July 2017). "IOI 2017, first round - Codeforces". Codeforces. Retrieved 4 August 2017. There is really only one USA contestant on site, it looks like he came with the Chinese team (straight from China).

doi.org

Maggiolo, Stefano (2015). "An Update on the Female Presence at the IOI" (PDF). Olympiads in Informatics. 9, 127–137 (2015). London, U.K.: ioinformatics.org: 127–137. doi:10.15388/ioi.2015.10. Retrieved 13 July 2017.

egoi.org

"European Girls' Olympiad in Informatics". European Girls’ Olympiad in Informatics. European Girls’ Olympiad in Informatics.

hsin.hr

ioi2007.hsin.hr

"IOI 2007 Website". ioi2007.

informaticaolympiade.nl

"Informatica Olympiade".

ioi.org.ar

"IOI 1993 Website". ioi1993. Archived from the original on 1999-02-24. Retrieved 2024-03-07.

ioi2009.org

"IOI 2009 Website". ioi2009.org.

ioi2010.org

"IOI 2010 Waterloo". IOI 2010 Waterloo. University of Waterloo. Retrieved 29 July 2024.
"IOI 2010 Website". ioi2010.org.

ioi2011.or.th

"IOI 2011 Website". ioi2011. Archived from the original on 2010-09-04. Retrieved 2010-07-28.

ioi2012.org

"IOI 2012 Website". ioi2012.org.

ioi2013.org

"IOI 2013 Website". ioi2013.org.

ioi2014.org

"IOI 2014 Website". ioi2014.org.

ioi2015.kz

"IOI 2015 Website". ioi2017.kz.

ioi2016.ru

"IOI 2016 Website". ioi2016.ru. Archived from the original on 2016-02-11. Retrieved 2023-08-16.

ioi2017.org

"IOI 2017 Website". ioi2017.org.

ioi2018.jp

"IOI 2018 Website". ioi2018.jp.

ioi2019.az

"IOI 2019 Website". ioi2019.az. Archived from the original on 2022-04-01. Retrieved 2023-08-16.

ioi2020.sg

"IOI 2020 Website". ioi2020.sg.

ioi2021.sg

"IOI 2021 Website". ioi2021.sg.

ioi2022.id

"Number of Participants". ioi2022.id.
"IOI 2022 Website". ioi2022.id.

ioi2023.hu

"IOI 2023 Website". ioi2023.hu.

ioi2024.eg

"Contest Rules". IOI 2024 Egypt. Retrieved 2024-10-15.
"Competition Equipment". IOI 2024 Egypt. Arab Academy. Retrieved 29 July 2024.
"IOI 2024 Website". ioi2024.eg.

ioi2025.bo

"IOI 2025 Website". ioi2025.bo.

ioi2026.uz

"IOI 2026 Website". ioi2026.uz.

ioinformatics.org

stats.ioinformatics.org

"Zhezheng Luo". stats.ioinformatics.org.
"IOI 2017: Results". stats.ioinformatics.org.
"IOI 1989 Results".
"IOI 1990 Results".
"IOI 1991 Results".
"IOI 1992 Results".
"IOI 1993 Results".
"IOI 1994 Results".
"IOI 1995 Results".
"IOI 1996 Results".
"IOI 1997 Results".
"IOI 1998 Results".
"IOI 1999 Results".
"IOI 2000 Results".
"IOI 2001 Results".
"IOI 2002 Results".
"IOI 2003 Results".
"IOI 2004 Results".
"IOI 2005 Results".
"IOI 2006 Results".
"IOI 2007 Results".
"IOI 2008 Results".
"IOI 2009 Results".
"IOI 2010 Results".
"IOI 2011 Results".
"IOI 2012 Results".
"IOI 2013 Results".
"IOI 2014 Results".
"IOI 2015 Results".
"IOI 2016 Results".
"IOI 2017 Results".
"IOI 2018 Results".
"IOI 2019 Results".
"IOI 2020 Results".
"IOI 2021 Results".
"IOI 2022 Results".
"IOI 2023 Results".
"IOI 2024 Results".
"Hall of Fame". stats.ioinformatics.org.

ioinformatics.org

"Minutes of the Meetings held in Kazan, Russian Federation" (PDF). ioinformatics.org. General Assembly of International Olympiad in Informatics. 19 August 2016. pp. 7, 11.
Maggiolo, Stefano (2015). "An Update on the Female Presence at the IOI" (PDF). Olympiads in Informatics. 9, 127–137 (2015). London, U.K.: ioinformatics.org: 127–137. doi:10.15388/ioi.2015.10. Retrieved 13 July 2017.
"General Assembly Minutes of the Meetings held in Almaty, Kazakhstan 26 July – 2 August, 2015" (PDF).
"IOI response to invasion of Ukraine". International Olympiad in Informatics. March 12, 2022. Retrieved September 28, 2024.
"IOI response to the conflict in Gaza". International Olympiad in Informatics. September 24, 2024. Retrieved September 28, 2024.

noi.ph

"Home — NOI.PH".

oi.edu.pl

"IOI 2005 Website". ioi2005.

olimpiada.info

http://olimpiada.info/Romanian National Informatics Olympiad Archived 2019-06-24 at the Wayback Machine

smh.com.au

Robson, Frank (10 August 2013). "Numbers game". The Sydney Morning Herald. Retrieved 17 August 2013.

usaco.org

"USACO". usaco.org. Retrieved 2025-02-16.

web.archive.org

"IOI 1993 Website". ioi1993. Archived from the original on 1999-02-24. Retrieved 2024-03-07.
"IOI 1994 Website". ioi1994. Archived from the original on 1997-01-02. Retrieved 2024-03-07.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
"IOI 2011 Website". ioi2011. Archived from the original on 2010-09-04. Retrieved 2010-07-28.
"IOI 2016 Website". ioi2016.ru. Archived from the original on 2016-02-11. Retrieved 2023-08-16.
"IOI 2019 Website". ioi2019.az. Archived from the original on 2022-04-01. Retrieved 2023-08-16.
http://olimpiada.info/Romanian National Informatics Olympiad Archived 2019-06-24 at the Wayback Machine