Problem sources

Problem Source
Problems
Average Difficulty
Forritunarkeppni Framhaldsskólanna 2017183Medium
Forritunarkeppni Framhaldsskólanna 2018203.1Medium
Forritunarkeppni Framhaldsskólanna 2019253.2Medium
Forritunarkeppni Framhaldsskólanna 2020323.1Medium
Forritunarkeppni Framhaldsskólanna 2021243Medium
Forritunarkeppni Framhaldsskólanna 2022303.5Medium
Forritunarkeppni Framhaldsskólanna 2023293.2Medium
Forritunarkeppni Framhaldsskólanna 2024343.7Medium
Forritunarkeppni Framhaldsskólanna 2025374.3Medium
Forritunarkeppni Háskólanna á Íslandi 2023104.7Medium
Forritunarkeppni Háskólanna á Íslandi 2024135.3Medium
Forritunarkeppni Háskólanna á Íslandi 2025125.2Medium
German Collegiate Programming Contest (GCPC) 2012115.1Medium
German Collegiate Programming Contest (GCPC) 2013115.1Medium
German Collegiate Programming Contest (GCPC) 2020135.9Hard
German Collegiate Programming Contest (GCPC) 2021145.7Hard
German Collegiate Programming Contest (GCPC) 2023135.8Hard
German Collegiate Programming Contest (GCPC) 2024135.3Medium
German Collegiate Programming Contest 2022135.2Medium
German Collegiate Programming Contest 2025115.3Medium
Google Code Jam 2008 Beta35.2Medium
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 235.3Medium
Google Code Jam 2008 Round 327.4Hard
Google Code Jam 2008 World Finals26.4Hard
Google Code Jam 2009 Qualification Round32.9Medium
Google Code Jam 2010 Online Competition Africa44.5Medium
Google Code Jam 2010 Qualification Round44.6Medium
Google Code Jam 2010 Qualification Round Africa11.5Easy
Google Code Jam 2011 Online Competition Africa and Arabia16.4Hard
Google Code Jam 2011 Qualification Round Africa and Arabia12.1Easy
Google Code Jam 201233.5Medium
Google Code Jam Practice Contest26.1Hard
Google Code Jam Practice Problems45.3Medium
Google Code Jam World Finals 201015.9Hard
Hendrix College Programming Contest 2024114.8Medium
Hendrix College Programming Contest 2025124.2Medium
HiQ Challenge 201763.8Medium
HiQ Challenge 201854.7Medium
Hong Kong Regional Contest 2016116.8Hard
Hong Kong Regional Contest 2016 Practice Session35.3Medium
Hong Kong Regional Online Preliminary 2016115.8Hard
ICPC 2012 North American Qualifier114.4Medium
ICPC North America Championship 2021136.8Hard
ICPC North America Regional Contests 2019-11-09184.6Medium
ICPC SG Preliminary Contest 2015105.2Medium
ICPC SG Preliminary Contest 2018105.1Medium
ICPC World Finals 2020156.1Hard
ICPC World Finals 2021126.3Hard
ICPC World Finals 202266.2Hard
ICPC World Finals 2022 and 202355.8Hard
ICPC World Finals 202366.8Hard
ICPC World Finals 2024126.1Hard
ICPC World Finals 2025124.8Medium
IDI Open 2015104.4Medium
IDI Open 201694.3Medium
IDI Open 2017105.2Medium
IDI Open 2018125.4Medium
IDI Open 2019105.4Medium
IDI Open 2021125.4Medium
IDI Open 2022105.8Hard
IDI Open 2023106Hard
IDI Open 2025105.4Medium
IEEEXtreme 9.015.2Medium
IPSC 200025.6Hard
IPSC 200326.5Hard
IPSC 200412.4Easy
IPSC 200534.1Medium
IPSC 200632.9Medium
IPSC 200734.3Medium
IPSC 200854.8Medium
ITMO Internet Olympiads 12.11.201125Medium
ITMO Internet Olympiads 15.10.201146.5Hard
ITMO Internet Olympiads 17.09.201113.4Medium
Icelandic High School Competition 201412Easy
International Collegiate Programming Contest (ACM-ICPC) Dress Rehearsal 2012123.8Medium
International Collegiate Programming Contest (ACM-ICPC) Dress Rehearsal 201513.5Medium
International Collegiate Programming Contest (ACM-ICPC) World Finals 2012126.9Hard
International Collegiate Programming Contest (ACM-ICPC) World Finals 2013116.4Hard
International Collegiate Programming Contest (ACM-ICPC) World Finals 2014126.8Hard
International Collegiate Programming Contest (ACM-ICPC) World Finals 2015135Medium
International Collegiate Programming Contest (ACM-ICPC) World Finals 2016135.9Hard
International Collegiate Programming Contest (ACM-ICPC) World Finals 2017125.4Medium
International Collegiate Programming Contest (ACM-ICPC) World Finals 2018115.6Hard
International Collegiate Programming Contest (ICPC) Challenge 201929.8Hard
Introduction to Algorithms, Danderyds Gymnasium34.1Medium
Italian Collegiate Programming Contest 2022106.1Hard
JobAgent Challenge 202154.7Medium
KTH CSC Avalg 200623.5Medium
KTH CSC Avancerade Algoritmer 200619.9Hard
KTH CSC Popup 2005283.9Medium
KTH CSC Popup 200644Medium
KTH CSC Popup 200715.1Medium
KTH CSC Popup 201624.3Medium
KTH CSC Popup spring 201334Medium
KTH Challenge17.3Hard