Problem sources

Problem Source
Problems
Average Difficulty
Fall 2019 UT Invitational Programming Contest126.1Hard
Forritunarkeppni Framhaldsskólanna 2016192.9Medium
Forritunarkeppni Framhaldsskólanna 2017182.8Medium
Forritunarkeppni Framhaldsskólanna 2018203.1Medium
Forritunarkeppni Framhaldsskólanna 2019253.1Medium
Forritunarkeppni Framhaldsskólanna 2020323.1Medium
Forritunarkeppni Framhaldsskólanna 2021243Medium
Forritunarkeppni Framhaldsskólanna 2022303.5Medium
Forritunarkeppni Framhaldsskólanna 2023293.2Medium
Forritunarkeppni Framhaldsskólanna 2024343.7Medium
Forritunarkeppni Framhaldsskólanna 2025374.1Medium
Forritunarkeppni Háskólanna á Íslandi 2023104.8Medium
Forritunarkeppni Háskólanna á Íslandi 2024135.3Medium
Forritunarkeppni Háskólanna á Íslandi 2025125.2Medium
German Collegiate Programming Contest (GCPC) 2012115Medium
German Collegiate Programming Contest (GCPC) 2013115.1Medium
German Collegiate Programming Contest (GCPC) 2020135.8Hard
German Collegiate Programming Contest (GCPC) 2021145.6Hard
German Collegiate Programming Contest (GCPC) 2023135.5Medium
German Collegiate Programming Contest (GCPC) 2024134.9Medium
German Collegiate Programming Contest 2022135.2Medium
German Collegiate Programming Contest 2025115.1Medium
Google Code Jam 2008 Beta35.4Medium
Google Code Jam 2008 EMEA Semifinal25.6Hard
Google Code Jam 2008 Qualification Round34.5Medium
Google Code Jam 2008 Round 1A24.6Medium
Google Code Jam 2008 Round 1B44.9Medium
Google Code Jam 2008 Round 1C12.8Medium
Google Code Jam 2008 Round 235.5Hard
Google Code Jam 2008 Round 327.5Hard
Google Code Jam 2008 World Finals26.7Hard
Google Code Jam 2009 Qualification Round32.9Medium
Google Code Jam 2010 Online Competition Africa44.6Medium
Google Code Jam 2010 Qualification Round44.7Medium
Google Code Jam 2010 Qualification Round Africa11.6Easy
Google Code Jam 2011 Online Competition Africa and Arabia16.8Hard
Google Code Jam 2011 Qualification Round Africa and Arabia12.1Easy
Google Code Jam 201233.6Medium
Google Code Jam Practice Contest25.9Hard
Google Code Jam Practice Problems45.2Medium
Google Code Jam World Finals 201016.2Hard
Hendrix College Programming Contest 2024114.7Medium
Hendrix College Programming Contest 2025124.5Medium
HiQ Challenge 201763.8Medium
HiQ Challenge 201854.6Medium
Hong Kong Regional Contest 2016116.5Hard
Hong Kong Regional Contest 2016 Practice Session35.1Medium
Hong Kong Regional Online Preliminary 2016115.8Hard
ICPC 2012 North American Qualifier114.4Medium
ICPC North America Championship 2021136.6Hard
ICPC North America Regional Contests 2019-11-09184.6Medium
ICPC SG Preliminary Contest 2015105.1Medium
ICPC SG Preliminary Contest 2018105.1Medium
ICPC World Finals 2020156Hard
ICPC World Finals 2021126.2Hard
ICPC World Finals 202265.8Hard
ICPC World Finals 2022 and 202355.3Medium
ICPC World Finals 202366.5Hard
ICPC World Finals 2024125.9Hard
ICPC World Finals 2025124.6Medium
IDI Open 2015104.4Medium
IDI Open 201694.2Medium
IDI Open 2017105Medium
IDI Open 2018125.3Medium
IDI Open 2019105.3Medium
IDI Open 2021125.7Hard
IDI Open 2022105.7Hard
IDI Open 2023106Hard
IDI Open 2025105.6Hard
IEEEXtreme 9.015.3Medium
IPSC 200025.6Hard
IPSC 200326.1Hard
IPSC 200412.3Easy
IPSC 200534.2Medium
IPSC 200632.8Medium
IPSC 200734.3Medium
IPSC 200855Medium
ITMO Internet Olympiads 12.11.201126.4Hard
ITMO Internet Olympiads 15.10.201146.8Hard
ITMO Internet Olympiads 17.09.201114.2Medium
Icelandic High School Competition 201412.3Easy
International Collegiate Programming Contest (ACM-ICPC) Dress Rehearsal 2012123.7Medium
International Collegiate Programming Contest (ACM-ICPC) Dress Rehearsal 201513.5Medium
International Collegiate Programming Contest (ACM-ICPC) World Finals 2012126.8Hard
International Collegiate Programming Contest (ACM-ICPC) World Finals 2013116.3Hard
International Collegiate Programming Contest (ACM-ICPC) World Finals 2014126.6Hard
International Collegiate Programming Contest (ACM-ICPC) World Finals 2015134.9Medium
International Collegiate Programming Contest (ACM-ICPC) World Finals 2016135.8Hard
International Collegiate Programming Contest (ACM-ICPC) World Finals 2017125.3Medium
International Collegiate Programming Contest (ACM-ICPC) World Finals 2018115.4Medium
International Collegiate Programming Contest (ICPC) Challenge 201929.8Hard
Introduction to Algorithms, Danderyds Gymnasium34Medium
Italian Collegiate Programming Contest 2022106.2Hard
JobAgent Challenge 202154.7Medium
KTH CSC Avalg 200623.5Medium
KTH CSC Avancerade Algoritmer 200619.9Hard
KTH CSC Popup 2005283.8Medium
KTH CSC Popup 200643.7Medium
KTH CSC Popup 200715Medium
KTH CSC Popup 201624.2Medium