Problem authors

Problem Source
Problems
Average Difficulty
Bob Roos255.2Medium
Bohdan Feysa18.6Hard
Bowen Yu636Hard
Brandon Fuller154.2Medium
Branimir Filipović33.7Medium
Brent Yorgey26.1Hard
Brian Chen12.5Easy
Brook Tamir15.6Hard
Bruce Elenbogen15Medium
Bruce S. Elenbogen13Medium
Bruno Ploumhans15.1Medium
Bruno Rahle73.3Medium
Bryce Sandlund65.7Hard
Bui Hong Duc57.1Hard
Børge Nordli24.5Medium
Calvin Godfrey17.5Hard
Calvin Li12.1Easy
Carson Cox22.2Easy
Cezar Câmpeanu26.2Hard
Chad Mourning12.3Easy
Chan Pak Hay13.4Medium
Chan Pak Hei16.9Hard
Charle Zheng15.5Hard
Charles L. A. Clarke14Medium
Charles Riedesel84.7Medium
Charlie Zheng44.5Medium
Charlotte Chen24.3Medium
Chengyu Lin36.2Hard
Chidambaram Annamalai17.3Hard
Chin Zhan Xiong17.8Hard
Christian Hundt18.4Hard
Christian Janos Lebeda24.9Medium
Christian Jonassen11.5Easy
Christian Ledig14Medium
Christian Lim15.7Hard
Christian Neverdal Jonassen22.1Easy
Christian Renner24.4Medium
Christian Yongwhan Lim63.4Medium
Christoph Dürr25.2Medium
Christopher Raphael15.2Medium
Chuck Riedesel35.2Medium
Clark Cucinell12.2Easy
Colin Peppler12.2Easy
Cosmin Negruseri45.7Hard
Crystal Sharpe15.4Medium
Daan van Gent26.3Hard
Dagur Benjamínsson35.3Medium
Damian Straszak24.5Medium
Dan Alden Baterisna67.2Hard
Dan Folescu11.9Easy
Daniel Brinkers22.6Easy
Daniel Espling36.5Hard
Daniel Gil11.7Easy
Daniel Lokshtanov45.4Medium
Daniel Moyer12Easy
Daniel Paleka17.6Hard
Daniel Robbins17.3Hard
Daniel Rutschmann19.6Hard
Daniel Stefankovic57.9Hard
Daniel Štefankovič14.1Medium
Dante Bencivenga214.6Medium
Darcy Best73.9Medium
Darko Aleksic74.2Medium
Daumilas Ardickas18Hard
Dave Hotchkiss22.1Easy
David Arthur17.9Hard
David Avellan-Hultman16.2Hard
David Bremner23.8Medium
David García Soriano26.3Hard
David Poplawski14.9Medium
David Rasmussen Lolck39.4Hard
David Sturgill743.7Medium
David Van Brackl14Medium
David Van Brackle84.3Medium
David Venhoek24.4Medium
David Zheng54.8Medium
David van Brackle17.6Hard
Deon Nicholas54.7Medium
Dereene Goodwin17Hard
Derek Kisman76.2Hard
Dillon Cutaiar12Easy
Domagoj Bradač15.5Hard
Domagoj Ćevid36.7Hard
Domantas Jadenkus12.1Easy
Dominik Gleich175Medium
Don Reble34.6Medium
Dovydas Vadišius17.3Hard
Dwayne Towell16.2Hard
ECNA Judging Team245.7Hard
Ed Skochinski44.7Medium
Edbert Geraldy Cangdinata26.1Hard
Eduard Kalinicenko17.9Hard
Edvard Kristoffer Neset Karlsen16.1Hard
Edward Xiao19.2Hard
Egor Dranischnikow34.5Medium
Einar Darri Sveinbjörnsson11.1Easy
Eirik Reksten14.8Medium
Elias Lindstenz14.6Medium
Elias Rasmussen Lolck19.3Hard
Elias Simojoki16.2Hard