Problem Authors

Problem author Problems Average Difficulty
Aarav Singh 1 1.4
A.Augusto de Sousa 1 6.0
Abel Molina 1 4.9
Abe Wits 4 5.8
Adam Polak 6 5.1
Adrian Kügel 3 4.6
Adrian Satja Kurdija 15 4.8
Akshay Goel 1 3.9
Alexander Dietsch 2 2.5
Alexander Rass 4 6.2
Alexander Scheel 2 3.2
Alexander Wei 1 5.9
Alex Brodsky 1 6.1
Alex Li 4 6.2
Alex ten Brink 1 6.8
Amar Topalovic 2 6.8
Ana Paula Tomás 3 5.1
Andreas Björklund 20 5.6
Andreas Lundblad 3 6.9
Andreas Schuh 1 1.7
André Susano Pinto 2 6.3
Andrew Gove 1 4.4
Andrew Harrington 7 3.8
Andrew Stankevich 1 8.0
Andrew Warner 1 5.5
Andriy Katkov 2 4.4
Andy Harrington 2 7.2
Andy Nguyen 2 7.9
Ante Derek 1 4.3
Anthony Han 4 4.8
Anton Grbin 2 6.1
Antonio Jurić 6 4.8
Antti Laaksonen 5 5.5
Ariana Herbst 1 5.3
Arkadiusz Pawlik 4 7.7
Arnav Sastry 5 3.7
Arne Alex 3 5.2
Arthur van Goethem 2 3.8
Arup Guha 3 5.7
Atli Fannar Franklín 6 5.4
Babak Behsaz 6 4.2
Bartholomew Furrow 3 5.0
Bartosz Walczak 2 6.0
Ben Bradshaw 1 6.3
Ben Zhang 1 6.8
Bergur Snorrason 6 5.4
Birk Tjelmeland 2 4.6
Bjarki Ágúst Guðmundsson 13 4.6
Björn Hegerfors 1 7.7
Boas Kluiving 1 6.3
Boaz Pat-El 4 4.8
Bob Pilgrim 2 4.1
Bob Roos 3 5.9
Børge Nordli 1 5.6
Bowen Yu 24 6.0
Bo Zhou 1 9.4
Brandon Fuller 9 4.7
Branimir Filipović 3 3.6
Brian Chen 1 3.3
Bruce Elenbogen 1 5.5
Bruce S. Elenbogen 1 3.1
Bruno Rahle 6 3.7
Bryce Sandlund 3 5.1
Chad Mourning 1 3.0
Chan Pak Hay 1 4.3
Chan Pak Hei 1 4.6
Charles L. A. Clarke 1 3.4
Chengyu Lin 2 7.6
Chidambaram Annamalai 1 7.6
Chin Zhan Xiong 1 7.2
Christian Hundt 1 7.8
Christian Jonassen 1 1.5
Christian Ledig 1 4.5
Christian Neverdal Jonassen 2 2.2
Christian Renner 2 4.7
Christoph Dürr 2 4.9
Christopher Raphael 1 5.9
Cosmin Negruseri 4 5.7
Damian Straszak 2 6.4
Daniel Brinkers 2 2.2
Daniel Espling 3 6.8
Daniel Gil 1 1.7
Daniel Lokshtanov 4 6.2
Daniel Moyer 1 2.1
Daniel Paleka 1 8.4
Daniel Robbins 1 6.7
Daniel Stefankovic 3 7.4
Darcy Best 5 4.2
Darko Aleksic 7 4.1
Dave Hotchkiss 2 1.9
David Arthur 1 6.6
David García Soriano 2 6.4
David Poplawski 1 5.6
David Sturgill 74 3.8
David van Brackle 1 6.5
Deon Nicholas 5 5.0
Derek Kisman 3 6.7
Domagoj Bradač 1 7.0
Domagoj Ćevid 2 6.5
Dominik Gleich 17 5.2
Don Reble 3 4.5
Ed Skochinski 1 8.4
Eduard Kalinicenko 1 6.8
Egor Dranischnikow 3 4.1
Eirik Reksten 1 8.3
Emilio Vivancos 1 5.2
Emma Enström 3 3.3
Enrique Martín Martín 1 8.9
Eric Hervet 1 1.9
Eric Shade 1 5.3
Erik Aas 3 7.4
Etienne Vouga 3 4.6
Felix Halim 1 2.2
Filip Barl 7 3.7
Florin Ghesu 1 6.4
Francisco Criado 1 5.0
François Aubry 2 3.4
Frane Kurtović 1 4.8
Fredrik Niemelä 2 5.1
Fredrik Svensson 4 6.4
Gerben Stavenga 3 5.4
Gilbert Lee 1 5.9
Godmar Back 27 3.5
Goran Gašić 3 4.9
Goran Žužić 9 6.2
Gordon Cormack 1 6.3
Gordon V. Cormack 46 4.9
Graeme Kemkes 1 2.9
Graeme Zinck 1 4.9
Greg Hamerly 92 4.0
Gregor Behnke 6 4.7
Grzegorz Herman 3 7.3
Gu Jin 2 5.8
Gunnar Kreitz 10 4.7
Gustav Matula 1 5.7
Hans Wennborg 1 4.7
Haochen Chen 4 6.1
Harrison Fang 2 3.1
Harry Smit 6 4.9
Hélène Verhaeghe 1 3.3
Henrik Eriksson 4 2.9
Henry Wang 1 3.2
Hon Man Hin 3 5.2
Howard Cheng 23 3.9
Hubert Teo Hua Kian 3 6.5
Hung Chun Ho 1 8.7
Ian Munro 1 2.9
Igor Naverniouk 1 4.3
Ioana Ilena 1 5.9
Irvan Jahja 8 5.5
Isaac Lee 1 7.2
Ivan Katanić 5 6.7
Ivan Paljak 7 5.2
Ivona Bezakova 4 6.1
Ivor Page 3 4.2
Jaap Eldering 5 5.9
Jack Rosenthal 3 1.9
Jacob Merizia 1 5.4
Jacob Plachta 3 5.5
Jacques-Henri Jourdan 1 6.5
Jakob Krainz 3 6.4
Jakub Pachocki 2 7.5
Jakub Závodný 1 7.6
Jalal Almhana 1 1.9
James Feher 5 1.9
James Stanley 1 2.6
Jan Elffers 4 5.6
Jan Kuipers 7 5.5
Jan Stoklasa 1 6.9
Jason Pham 1 3.2
Javier Gómez Serrano 3 5.6
Jean-Christophe Filliâtre 1 4.3
Jean Niklas L'orange 14 4.9
Jeff Kinne 1 1.5
Jennifer Lhoták 1 5.7
Jennifer Shimada 1 4.7
Jeroen Bransen 7 3.7
Jeroen de Jong 1 6.1
Jesper Öqvist 2 7.3
Jim Grimmett 10 4.8
Jimmy Mårdell 17 5.4
Johan Sannemo 65 5.8
John Bonomo 42 4.4
John Cigas 4 1.7
John Dethridge 4 5.4
Jon Ander Gómez 3 5.4
Jon Marius Venstad 10 4.6
Joran van Apeldoorn 1 3.7
Joris van Rantwijk 5 5.5
Josee Tasse 1 5.6
Josef Cibulka 1 6.9
José Paulo Leal 1 4.8
Joseph Swernofsky 1 8.4
Joshua Moerman 3 5.2
Joshua T. Guerin 5 3.0
Josse van Dobben de Bruyn 7 4.5
Jozef Šiška 1 3.2
Julian Baldus 1 6.1
Julian Dörfler 1 6.1
Julian Neeleman 1 8.3
Junbin Teng 1 7.3
Justin Park 1 2.8
Kai Chen 2 4.0
Karl Johan Sande Heimark 9 5.4
Kathleen Ericson 5 3.0
Kent Williams-King 4 6.8
Kristoffer Arnsfelt Hansen 1 5.6
Kristof Unterweger 1 4.2
Kyle See 2 5.1
Lap Chi Lau 1 6.7
Larry D. Pyeatt 2 6.5
Larry Pyeatt 2 3.9
Lau Lap Chi 1 6.1
Law Wai Hon 2 3.6
Lech Duraj 10 6.6
Lee Chun Yin 1 8.7
Leo Osvald 2 5.1
Leszek Horwath 1 7.6
Leung Kai Man 1 7.7
Lewin Gan 2 6.3
Liam Keliher 11 4.4
Li Cheuk Ting 2 5.9
Louis Jachiet 1 8.5
Lucas Wood 1 4.4
Luis Hernández Corbato 1 7.7
Luka Kalinovčić 4 5.4
Lukáš Poláček 49 5.5
Łukasz Matylla 1 9.0
Maciej Liskiewicz 1 6.5
Magne Vikjord 3 5.9
Magnus Øian 2 4.7
Mahbubul Hasan 2 5.9
Malcolm Sharpe 10 5.7
Måns Magnusson 7 5.3
Manuel Abellanas 1 7.0
Manuel Freire 1 2.4
Marc Furon 1 6.6
Marcus Isaksson 1 5.9
Marc Vinyals 15 6.2
Margarida Mamede 4 5.0
Marin Tomić 9 5.1
Mario Nakazawa 1 2.1
Marius Andrei 1 5.6
Mark Gordon 1 6.8
Marko Berezovsky 4 6.1
Marko Ivanković 9 3.6
Mark Theng Kwang Hui 2 7.7
Markus Dregi 2 7.3
Markus Fanebust Dregi 1 4.7
Markus S. Dregi 4 6.5
Mårten Wiman 4 6.5
Martin Kačer 1 6.9
Martin Macko 1 3.0
Mathijs de Weerdt 1 4.2
Matias Holte 1 3.5
Matija Milišić 1 7.1
Matthias Bayerlein 1 4.5
Max Wilson 1 2.0
Mees de Vries 17 5.1
Micah Stairs 5 5.8
Michael Bradet-Legris 1 4.5
Michael C Slattery 1 5.9
Michael Goldwasser 7 5.0
Michael Zmuda 1 1.5
Michal Forišek 6 3.4
Michał Pilipczuk 5 4.6
Michał Sapalski 1 6.4
Miguel Araújo 6 5.9
Miguel Oliveira 6 6.2
Mikael Goldmann 16 5.6
Mike Domaratzki 2 5.8
Mike Zmuda 1 3.7
Mislav Balunović 14 5.3
Mislav Bradač 3 6.1
Modan Han 6 4.2
Moritz Kobitzsch 3 5.0
Mykola Protsenko 1 3.5
Nalin Bhardwaj 1 7.0
Nathan Backman 4 4.0
Neha Kapur 1 1.4
Nguyen Tan Sy Nguyen 1 3.8
Nicholas Sharp 3 2.2
Nikola Dmitrović 5 1.5
Nikola Pintarić 1 1.3
Nils Grimsmo 4 4.2
Olav Røthe Bakken 3 4.6
Olivier Bourgeois 1 2.2
Ondřej Lhoták 34 5.2
Oskar Werkelin Ahlin 19 4.5
Owen Kaser 1 5.6
Øyvind Grotmol 8 6.0
Øyvind Haarberg 4 4.2
Paco Álvaro 1 7.1
Pål G. Drange 4 6.5
Pål Grønås Drange 5 5.0
Pär Söderhjelm 1 6.5
Paul Wild 3 4.8
Pavel Petrovic 1 6.4
Pawel Gawrychowski 2 6.9
Paweł Idziak 1 2.6
Paweł Komosa 1 8.1
Pedro Guerreiro 3 4.9
Pedro Ribeiro 1 4.9
Pedro Vasconcelos 4 4.5
Pehr Söderman 13 4.9
Peilin Zhong 1 5.2
Per Austrin 100 5.5
Peter Høyer 1 4.7
Peter Kluit 1 5.6
Peter Košinár 1 7.9
Peter Steele 3 7.2
Petr Mitrichev 1 6.8
Petter Elvevoll 2 4.2
Philip Wellnitz 1 6.1
Piotr Micek 1 6.8
Piotr Rudnicki 17 4.0
Piotr Zielinski 1 7.1
Prabhakar Ragde 2 5.4
Ragnar Groot Koerkamp 10 5.2
Ragnar Nevries 1 7.8
Ranald Lam Yun Shao 1 5.1
Raphaël Marinier 2 5.6
Raymond Kang Seng Ing 1 5.7
Raymond van Bommel 7 5.3
Richard Peng 5 5.4
R. Marshall 2 2.8
Robert Hochberg 9 5.1
Robert McGorman 1 1.9
Robert Pilgrim 1 2.9
Robin Christopher Yu 18 6.5
Robin Lee 18 5.4
Roger Henriksson 1 4.7
Rudy van Vliet 1 5.9
Rujia Liu 5 4.9
Ryan Henning 2 5.6
Ryan Marshall 5 3.8
Samuel Tardieu 1 7.5
Sander Alewijnse 1 8.6
Sean McCulloch 2 7.9
Sérgio Crisóstomo 2 3.9
Serikzhan Kazi 1 4.6
Serikzhan S. Kazi 1 5.0
Shafaet Ashraf 1 9.3
Shaheed Ebrahim 1 3.0
Shahriar Manzoor 1 4.6
Shiplu Hawlader 1 4.0
Sidhant Bansal 1 6.4
Sidney Cadot 1 4.2
Silviu Maniu 2 3.0
Simon Klein 1 5.6
Simon Lindholm 4 7.2
Sonny Chan 2 4.3
Spencer Pao 1 1.9
Stefan Büttcher 3 4.6
Stefan Kraus 1 3.0
Stefan Pszczolkowski 1 1.7
Stefan Toman 1 3.2
Stein Norheim 7 5.9
Steven Halim 12 3.9
Steven Zeil 11 6.2
Stjepan Požgaj 1 5.0
Stuart Hansen 1 3.9
Suhendry Effendy 1 1.6
Svetoslav Tzvetkov 1 8.4
Swen Gaudl 1 5.5
Syx Pek 7 5.1
Tan Jun An 1 6.7
Thijs van Ommen 1 7.6
Thomas Beuman 4 7.0
Thomas Lidbetter 4 6.8
Thomasz Idziaszek 1 4.1
Timon Knigge 11 5.4
Tobias Werth 6 3.8
Tómas Ken Magnússon 3 4.0
Tom Fuller 1 3.3
Tommy Färnqvist 3 4.4
Tom Rokicki 1 3.4
Tom Verhoeff 1 3.3
Tonko Sabolčec 1 3.8
Tony Cai 12 4.8
Torbjørn Morland 21 4.8
Torstein Strømme 7 4.2
Troy Vasiga 3 4.1
Truls A. Björklund 1 2.4
Truls Amundsen Bjørklund 1 1.3
Tung Kam Chuen 10 6.0
Ulf Lundström 21 4.6
Ulle Endriss 1 5.2
University of Dallas 1 5.6
Unnar Freyr Erlendsson 1 2.1
Vaibhav Tulsyan 1 4.5
Vegard Sjonfjell 2 4.7
Victor Loh Bo Huai 1 7.4
Vladimir Valyukh 3 6.5
Vlado Keselj 1 6.5
Volodymyr Lyubinets 5 5.5
Walter Guttmann 1 5.7
Wenli Looi 5 3.6
William Fiset 3 5.7
William Gan Wei Liang 2 7.0
Wing-Kin Sung 1 6.6
Xiaomin Chen 5 5.1
Xiaoyuan Suo 2 3.9
Xiayuan Suo 1 1.6
Yingtao Tian 3 5.2
Ylvis 1 2.0
Yuen Chak Fai 2 4.6
Yujie An 1 6.7
Zachary Friggstad 18 4.5
Ziyi Tang 2 4.0
Zvonimir Medić 1 6.5