Problem sources

Problem Source
Problems
Average Difficulty
Rocky Mountain Regional Programming Contest 2024135.4Medium
Rocky Mountain Regional Programming Contest 2025134.3Medium
Rujia Liu's Present 3: A datastructure contest celebrating the 100th anniversary of Tsinghua University23.1Medium
Rutgers Spring Contest145.2Medium
SANDVIK Challenge 202055.6Hard
SPb School Team Olympiad 201016.5Hard
SPb School Team Olympiad 201124.8Medium
SPb School Team Olympiad 201816.3Hard
Sjúkrapróf í TÖL607G 202452.6Easy
Slovak Olympiad in Informatics Training Camp13.1Medium
Southwestern Europe Regional Contest (SWERC) 2009105.5Medium
Southwestern Europe Regional Contest (SWERC) 201096.7Hard
Southwestern Europe Regional Contest (SWERC) 201145.5Medium
Southwestern Europe Regional Contest (SWERC) 201295.6Hard
Southwestern Europe Regional Contest (SWERC) 201395.8Hard
Southwestern Europe Regional Contest (SWERC) 2014105.3Medium
Southwestern Europe Regional Contest (SWERC) 2015104.8Medium
Southwestern Europe Regional Contest (SWERC) 2016115.7Hard
Southwestern Europe Regional Contest (SWERC) 2017115.9Hard
Spotify Challenge 201086.4Hard
Spotify Challenge 201185Medium
Spotify Code Quest 201286.3Hard
Spring 2020 UT Invitational Programming Contest135.7Hard
Swedish Championships 200074.6Medium
Swedish Championships 200164.3Medium
Swedish Coding Cup Finals 201856.3Hard
Swedish Coding Cup Finals 201966.9Hard
Swedish Coding Cup Finals 202157.8Hard
Swedish Coding Cup Finals 202257.8Hard
Swedish ICPC Qualifier 200944.4Medium
T-111-Programming43.4Medium
T-301-REIR Algorithms54.6Medium
T-403-FORC Programming in C++14.6Medium
T-513-Cryptography and Number Theory23.7Medium
Texas Regional Programming Contest 197453.8Medium
The 14th Zhejiang Provincial Collegiate Programming Contest17.2Hard
The 2016 ACM - ICPC Asia Nha Trang Regional Contest126.4Hard
The 2017 ACM - ICPC Asia Ho Chi Minh City Regional Contest125.6Hard
The 2017 ACM - ICPC Vietnam National Programming Contest125.7Hard
The 2017 ACM-ICPC Vietnam Northern Provincial Programming Contest116.6Hard
The 2018 ICPC Asia Hanoi Regional Contest126.3Hard
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)85.3Medium
The 3rd ProgNova Programming Contest (2017)76.1Hard
The 4th ProgNova Programming Contest (2018)85.6Hard
The 5th ProgNova Programming Contest (2020)86.7Hard
UBCPC 202085.6Hard
UTSCode 2018104.8Medium
UiB INF102 Fall 2018123.4Medium
UiB INF237 Algoritme-engineering 201724.4Medium
United Kingdom and Ireland Programming Contest (UKIEPC) 2015135.7Hard
United Kingdom and Ireland Programming Contest (UKIEPC) 2016124.8Medium
United Kingdom and Ireland Programming Contest (UKIEPC) 202033.3Medium
University of Alberta Programming Contest 2022144Medium
University of Alberta Programming Contest 2023144.4Medium
University of Alberta Programming Contest 2024134.4Medium
University of Alberta Programming Contest 2025144.3Medium
University of Chicago - Department of Computer Science72.4Easy
University of Chicago Masters Program in Computer Science - Placement Exam 2014/1521.3Easy
University of Ulm Local Contest 199712.9Medium
UofAlberta ACM Programming Contest 200215.2Medium
VTEX Code Cup75.4Medium
VTEX Code Cup 201976.6Hard
Waterloo Programming Contest 1997-10-1818.7Hard
Waterloo Programming Contest 1998-06-0615.7Hard
Waterloo Programming Contest 1999-01-3156.6Hard
Waterloo Programming Contest 1999-06-1955Medium
Waterloo Programming Contest 1999-09-2554.7Medium
Waterloo Programming Contest 1999-10-0236.9Hard
Waterloo Programming Contest 2000-01-2926.5Hard
Waterloo Programming Contest 2000-09-2345.1Medium
Waterloo Programming Contest 2000-09-3054.9Medium
Waterloo Programming Contest 2001-01-2754.2Medium
Waterloo Programming Contest 2001-06-0235.3Medium
Waterloo Programming Contest 2001-09-2253.4Medium
Waterloo Programming Contest 2001-09-2915.2Medium
Waterloo Programming Contest 2001-10-2012.2Easy
Waterloo Programming Contest 2002-01-2654.3Medium
Waterloo Programming Contest 2002-06-0153.5Medium
Waterloo Programming Contest 2002-09-2136.5Hard
Waterloo Programming Contest 2002-09-2853.8Medium
Waterloo Programming Contest 2003-01-2536.1Hard
Waterloo Programming Contest 2003-07-0534.9Medium
Waterloo Programming Contest 2003-09-2055Medium
Waterloo Programming Contest 2003-09-2755.5Hard
Waterloo Programming Contest 2004-01-3156.5Hard
Waterloo Programming Contest 2004-09-1934.3Medium
Waterloo Programming Contest 2004-09-2546Hard
Waterloo Programming Contest 2005-02-0534.7Medium
Waterloo Programming Contest 2005-09-1744.5Medium
Waterloo Programming Contest 2005-09-2453.3Medium
Waterloo Programming Contest 2006-02-2526.9Hard
Waterloo Programming Contest 2006-05-2733.6Medium
Waterloo Programming Contest 2006-09-2443.7Medium
Waterloo Programming Contest 2006-09-3055.6Hard
Waterloo Programming Contest 2007-07-1422.9Medium