Problem sources

Problem Source
Problems
Average Difficulty
Slovak Olympiad in Informatics Training Camp13.1Medium
Southwestern Europe Regional Contest (SWERC) 2009105.6Hard
Southwestern Europe Regional Contest (SWERC) 201096.7Hard
Southwestern Europe Regional Contest (SWERC) 201145.6Hard
Southwestern Europe Regional Contest (SWERC) 201295.6Hard
Southwestern Europe Regional Contest (SWERC) 201395.8Hard
Southwestern Europe Regional Contest (SWERC) 2014105.4Medium
Southwestern Europe Regional Contest (SWERC) 2015104.8Medium
Southwestern Europe Regional Contest (SWERC) 2016115.8Hard
Southwestern Europe Regional Contest (SWERC) 2017116Hard
Spotify Challenge 201086.3Hard
Spotify Challenge 201185.1Medium
Spotify Code Quest 201286.3Hard
Spring 2020 UT Invitational Programming Contest135.9Hard
Swedish Championships 200074.7Medium
Swedish Championships 200164.3Medium
Swedish Coding Cup Finals 201856.5Hard
Swedish Coding Cup Finals 201966.9Hard
Swedish Coding Cup Finals 202157.7Hard
Swedish Coding Cup Finals 202257.9Hard
Swedish ICPC Qualifier 200944.5Medium
T-111-Programming43.5Medium
T-301-REIR Algorithms54.6Medium
T-403-FORC Programming in C++18.4Hard
T-513-Cryptography and Number Theory23.7Medium
Texas Regional Programming Contest 197453.6Medium
The 14th Zhejiang Provincial Collegiate Programming Contest17.2Hard
The 2016 ACM - ICPC Asia Nha Trang Regional Contest126.5Hard
The 2017 ACM - ICPC Asia Ho Chi Minh City Regional Contest125.5Hard
The 2017 ACM - ICPC Vietnam National Programming Contest125.7Hard
The 2017 ACM-ICPC Vietnam Northern Provincial Programming Contest116.4Hard
The 2018 ICPC Asia Hanoi Regional Contest126.4Hard
The 2018 ICPC Vietnam National Programming Contest125.7Hard
The 2019 ICPC Asia Danang Regional Contest136.2Hard
The 2019 ICPC Vietnam National Contest126.8Hard
The 2020 ICPC Asia Can Tho Regional Contest136.4Hard
The 2020 ICPC Vietnam National Contest135.7Hard
The 2nd ProgNova Multi-University Programming Contest (2016)85.4Medium
The 3rd ProgNova Programming Contest (2017)76.1Hard
The 4th ProgNova Programming Contest (2018)85.7Hard
The 5th ProgNova Programming Contest (2020)86.8Hard
UBCPC 202085.6Hard
UTSCode 2018105Medium
UiB INF237 Algoritme-engineering 201724.6Medium
United Kingdom and Ireland Programming Contest (UKIEPC) 2015135.9Hard
United Kingdom and Ireland Programming Contest (UKIEPC) 2016125.1Medium
United Kingdom and Ireland Programming Contest (UKIEPC) 202033.4Medium
University of Alberta Programming Contest 2022144Medium
University of Alberta Programming Contest 2023144.5Medium
University of Alberta Programming Contest 2024134.3Medium
University of Alberta Programming Contest 2025144.5Medium
University of Chicago - Department of Computer Science72.5Easy
University of Chicago Masters Program in Computer Science - Placement Exam 2014/1521.3Easy
University of Ulm Local Contest 199713.1Medium
UofAlberta ACM Programming Contest 200215.1Medium
VTEX Code Cup75.3Medium
VTEX Code Cup 201976.6Hard
Waterloo Programming Contest 1997-10-1818.6Hard
Waterloo Programming Contest 1998-06-0615.6Hard
Waterloo Programming Contest 1999-01-3156.9Hard
Waterloo Programming Contest 1999-06-1954.8Medium
Waterloo Programming Contest 1999-09-2554.9Medium
Waterloo Programming Contest 1999-10-0237.1Hard
Waterloo Programming Contest 2000-01-2926.8Hard
Waterloo Programming Contest 2000-09-2345.1Medium
Waterloo Programming Contest 2000-09-3055Medium
Waterloo Programming Contest 2001-01-2754.3Medium
Waterloo Programming Contest 2001-06-0235.4Medium
Waterloo Programming Contest 2001-09-2253.6Medium
Waterloo Programming Contest 2001-09-2915.2Medium
Waterloo Programming Contest 2001-10-2012.4Easy
Waterloo Programming Contest 2002-01-2654.4Medium
Waterloo Programming Contest 2002-06-0153.5Medium
Waterloo Programming Contest 2002-09-2136.6Hard
Waterloo Programming Contest 2002-09-2853.9Medium
Waterloo Programming Contest 2003-01-2536.2Hard
Waterloo Programming Contest 2003-07-0535Medium
Waterloo Programming Contest 2003-09-2054.9Medium
Waterloo Programming Contest 2003-09-2755.6Hard
Waterloo Programming Contest 2004-01-3156.6Hard
Waterloo Programming Contest 2004-09-1934.3Medium
Waterloo Programming Contest 2004-09-2546.1Hard
Waterloo Programming Contest 2005-02-0534.8Medium
Waterloo Programming Contest 2005-09-1744.5Medium
Waterloo Programming Contest 2005-09-2453.4Medium
Waterloo Programming Contest 2006-02-2526.8Hard
Waterloo Programming Contest 2006-05-2734Medium
Waterloo Programming Contest 2006-09-2443.7Medium
Waterloo Programming Contest 2006-09-3055.7Hard
Waterloo Programming Contest 2007-07-1422.9Medium
Waterloo Programming Contest 2007-09-2343.8Medium
Waterloo Programming Contest 2007-09-2925.3Medium
Waterloo Programming Contest 2008-06-1525.4Medium
Waterloo Programming Contest 2008-09-2745Medium
Waterloo Programming Contest 2008-10-0454Medium
Waterloo Programming Contest 2009-02-0854.9Medium
Waterloo Programming Contest 2009-06-1356.8Hard
Waterloo Programming Contest 2009-09-2755.7Hard
Waterloo Programming Contest 2009-10-0334.4Medium
Waterloo Programming Contest 2010-07-1045.1Medium