Problem sources

Problem Source
Problems
Average Difficulty
Baltic Olympiad in Informatics 200115.4Medium
Baltic Olympiad in Informatics 200715.6Hard
Baltic Olympiad in Informatics 2007, Day 126.4Hard
Baltic Olympiad in Informatics 2009, Day 014.4Medium
Baltic Olympiad in Informatics 2009, Day 117.1Hard
Baltic Olympiad in Informatics 201326.7Hard
Baltic Olympiad in Informatics 201417Hard
Baltic Olympiad in Informatics 2017, Day 135.9Hard
Baltic Olympiad in Informatics 2017, Day 236.1Hard
Baltic Olympiad in Informatics 2017, Warmup34.9Medium
Baltic Olympiad in Informatics 2018, day 136.7Hard
Baltic Olympiad in Informatics 2018, day 236.6Hard
Baltic Olympiad in Informatics 2018, practice session35Medium
Baltic Olympiad in Informatics 2024, Day 036.1Hard
Baltic Olympiad in Informatics 2024, Day 137.5Hard
Baltic Olympiad in Informatics 2024, Day 236.3Hard
Baylor Competitive Learning course1303.9Medium
Benelux Algorithm Programming Contest (BAPC) 2012104.6Medium
Benelux Algorithm Programming Contest (BAPC) 2013104.9Medium
Benelux Algorithm Programming Contest (BAPC) 2014114.9Medium
Benelux Algorithm Programming Contest (BAPC) 2015125.8Hard
Benelux Algorithm Programming Contest (BAPC) 2016125.1Medium
Benelux Algorithm Programming Contest (BAPC) 2017135.4Medium
Benelux Algorithm Programming Contest (BAPC) 2018115.2Medium
Benelux Algorithm Programming Contest (BAPC) 2019124.9Medium
Benelux Algorithm Programming Contest (BAPC) 2020104.7Medium
Benelux Algorithm Programming Contest (BAPC) 2021124.8Medium
Benelux Algorithm Programming Contest (BAPC) preliminaries 2016114Medium
Benelux Algorithm Programming Contest (BAPC) preliminaries 2017125.6Hard
Benelux Algorithm Programming Contest (BAPC) preliminaries 2018115.7Hard
Benelux Algorithm Programming Contest (BAPC) preliminaries 2019124.4Medium
Bergen Open 2018124.7Medium
Bergen Open 2019115.2Medium
CTU Open 200555.3Medium
CTU Open 200856.6Hard
CTU Open 200935.7Hard
CTU Open 201075.9Hard
CTU Open 201186.1Hard
CTU Open 201285.7Hard
CTU Open 201384.8Medium
CTU Open 201595.4Medium
CTU Open 2021125Medium
Calgary Collegiate Programming Contest 201794.7Medium
Calgary Collegiate Programming Contest 201884.6Medium
Calgary Collegiate Programming Contest 201974.3Medium
Calgary Collegiate Programming Contest 202093.9Medium
Calgary Collegiate Programming Contest 2021124.7Medium
Calgary Collegiate Programming Contest 2022153.8Medium
Calgary Collegiate Programming Contest 2023103.6Medium
Camp Inc32.1Easy
Canadian Computing Competition 201721.6Easy
Central Europe Regional Contest (CERC) 201018.3Hard
Central Europe Regional Contest (CERC) 2012105.9Hard
Central Europe Regional Contest (CERC) 2013116.2Hard
Central Europe Regional Contest (CERC) 2014126.3Hard
Central Europe Regional Contest (CERC) 201523.8Medium
Central Europe Regional Contest (CERC) 201626.5Hard
Chalmers Challenge 202154.3Medium
Chalmers Challenge 202266.3Hard
Chalmers Challenge 202366.8Hard
Chalmers Challenge 202486.6Hard
CodeSprint LA 2021244.7Medium
CodeSprint LA 2022295.4Medium
CodeSprint LA 2023137.6Hard
CodeSprint LA 2023 Beginner93.2Medium
CodeSprint LA 2024236.5Hard
Coding Cup @ Google 201937.8Hard
Croatian Olympiad in Informatics 201418Hard
Croatian Open Competition in Informatics 2006/2007, contest #163.4Medium
Croatian Open Competition in Informatics 2006/2007, contest #263.5Medium
Croatian Open Competition in Informatics 2006/2007, contest #364.2Medium
Croatian Open Competition in Informatics 2006/2007, contest #463.9Medium
Croatian Open Competition in Informatics 2006/2007, contest #564.2Medium
Croatian Open Competition in Informatics 2006/2007, contest #616.8Hard
Croatian Open Competition in Informatics 2007/2008, contest #164.2Medium
Croatian Open Competition in Informatics 2007/2008, contest #264.1Medium
Croatian Open Competition in Informatics 2007/2008, contest #363.8Medium
Croatian Open Competition in Informatics 2007/2008, contest #463.3Medium
Croatian Open Competition in Informatics 2007/2008, contest #564.2Medium
Croatian Open Competition in Informatics 2007/2008, contest #654.7Medium
Croatian Open Competition in Informatics 2008/2009, contest #165.1Medium
Croatian Open Competition in Informatics 2008/2009, contest #263.8Medium
Croatian Open Competition in Informatics 2008/2009, contest #364.5Medium
Croatian Open Competition in Informatics 2008/2009, contest #463.8Medium
Croatian Open Competition in Informatics 2008/2009, contest #643.8Medium
Croatian Open Competition in Informatics 2009/2010, contest #145.5Hard
Croatian Open Competition in Informatics 2009/2010, contest #264.8Medium
Croatian Open Competition in Informatics 2009/2010, contest #363.8Medium
Croatian Open Competition in Informatics 2009/2010, contest #464.8Medium
Croatian Open Competition in Informatics 2009/2010, contest #565.2Medium
Croatian Open Competition in Informatics 2009/2010, contest #624Medium
Croatian Open Competition in Informatics 2009/2010, contest #764.6Medium
Croatian Open Competition in Informatics 2010/2011, contest #135.7Hard
Croatian Open Competition in Informatics 2010/2011, contest #225.7Hard
Croatian Open Competition in Informatics 2010/2011, contest #313.7Medium
Croatian Open Competition in Informatics 2010/2011, contest #464.2Medium
Croatian Open Competition in Informatics 2010/2011, contest #536.2Hard
Croatian Open Competition in Informatics 2011/2012, contest #213.5Medium
Croatian Open Competition in Informatics 2011/2012, contest #565Medium
Croatian Open Competition in Informatics 2011/2012, contest #613.1Medium