Problem Authors

Problem author Problems Average Difficulty
Aarav Singh 1 1.3
A.Augusto de Sousa 1 6.0
Abel Molina 1 4.8
Abe Wits 4 5.3
Adam Polak 6 5.5
Adrian Kügel 3 4.4
Adrian Satja Kurdija 15 4.9
Akshay Goel 1 4.5
Alexander Dietsch 2 2.5
Alexander Rass 4 5.5
Alexander Scheel 2 3.2
Alexander Wei 1 6.0
Alex Brodsky 1 6.1
Alex Li 4 6.0
Alex ten Brink 1 6.4
Amar Topalovic 2 5.5
Ana Paula Tomás 3 5.1
Andreas Björklund 20 5.6
Andreas Lundblad 3 7.0
Andreas Schuh 1 1.6
André Susano Pinto 2 6.2
Andrew Gove 1 4.6
Andrew Harrington 7 4.0
Andrew Stankevich 1 8.0
Andrew Warner 1 5.7
Andriy Katkov 2 5.1
Andy Harrington 2 7.2
Andy Nguyen 2 8.2
Ante Derek 1 6.5
Anton Grbin 2 6.7
Antonio Jurić 6 4.8
Antti Laaksonen 5 5.6
Ariana Herbst 1 5.4
Arkadiusz Pawlik 4 7.8
Arnav Sastry 5 3.7
Arne Alex 3 5.2
Arthur van Goethem 2 3.5
Arup Guha 3 5.5
Babak Behsaz 6 4.2
Bartholomew Furrow 3 5.5
Bartosz Walczak 2 6.0
Ben Bradshaw 1 6.0
Ben Zhang 1 6.9
Birk Tjelmeland 2 4.7
Bjarki Ágúst Guðmundsson 13 4.7
Björn Hegerfors 1 7.7
Boas Kluiving 1 6.5
Boaz Pat-El 4 5.1
Bob Pilgrim 2 4.1
Bob Roos 3 5.7
Børge Nordli 1 5.0
Bowen Yu 24 6.1
Bo Zhou 1 9.2
Brandon Fuller 9 5.1
Branimir Filipović 3 3.2
Brian Chen 1 3.4
Bruce Elenbogen 1 5.7
Bruce S. Elenbogen 1 2.8
Bruno Rahle 6 3.6
Bryce Sandlund 3 5.1
Chad Mourning 1 3.0
Chan Pak Hay 1 4.4
Chan Pak Hei 1 4.6
Charles L. A. Clarke 1 3.5
Chengyu Lin 2 8.3
Chidambaram Annamalai 1 7.6
Chin Zhan Xiong 1 5.8
Christian Hundt 1 8.1
Christian Jonassen 1 1.5
Christian Ledig 1 4.8
Christian Neverdal Jonassen 2 2.2
Christian Renner 2 4.8
Christoph Dürr 2 4.8
Christopher Raphael 1 6.0
Cosmin Negruseri 4 5.8
Damian Straszak 2 6.3
Daniel Brinkers 2 2.4
Daniel Espling 3 6.6
Daniel Gil 1 1.6
Daniel Lokshtanov 4 5.1
Daniel Moyer 1 2.2
Daniel Paleka 1 8.5
Daniel Robbins 1 5.9
Daniel Stefankovic 3 7.3
Darcy Best 5 5.0
Darko Aleksic 7 4.0
Dave Hotchkiss 2 1.8
David Arthur 1 6.3
David García Soriano 2 6.6
David Poplawski 1 5.9
David Sturgill 74 3.9
David van Brackle 1 6.6
Deon Nicholas 5 4.8
Derek Kisman 3 6.9
Domagoj Bradač 1 7.2
Domagoj Ćevid 2 6.7
Dominik Gleich 17 5.4
Don Reble 3 4.6
Ed Skochinski 1 8.2
Eduard Kalinicenko 1 6.9
Egor Dranischnikow 3 4.1
Eirik Reksten 1 8.0
Emilio Vivancos 1 5.0
Emma Enström 3 3.3
Enrique Martín Martín 1 8.3
Eric Hervet 1 2.3
Eric Shade 1 5.3
Erik Aas 3 7.4
Etienne Vouga 3 4.4
Felix Halim 1 2.2
Filip Barl 7 3.7
Florin Ghesu 1 6.4
Francisco Criado 1 5.0
François Aubry 2 4.2
Frane Kurtović 1 4.8
Fredrik Niemelä 2 5.4
Fredrik Svensson 4 6.5
Gerben Stavenga 3 5.8
Gilbert Lee 1 6.4
Godmar Back 27 3.6
Goran Gašić 2 5.9
Goran Žužić 8 6.5
Gordon Cormack 1 6.4
Gordon V. Cormack 44 5.0
Graeme Kemkes 1 2.7
Greg Hamerly 92 4.1
Gregor Behnke 6 4.5
Grzegorz Herman 3 7.4
Gu Jin 2 6.0
Gunnar Kreitz 10 4.6
Gustav Matula 1 5.1
Hans Wennborg 1 4.1
Haochen Chen 4 5.8
Harrison Fang 2 3.5
Harry Smit 6 4.7
Hélène Verhaeghe 1 2.6
Henrik Eriksson 4 3.1
Henry Wang 1 3.9
Hon Man Hin 3 5.8
Howard Cheng 23 4.0
Hubert Teo Hua Kian 3 6.5
Hung Chun Ho 1 8.3
Ian Munro 1 2.7
Igor Naverniouk 1 6.5
Ioana Ilena 1 5.7
Irvan Jahja 8 5.5
Ivan Katanić 5 6.5
Ivan Paljak 7 5.2
Ivona Bezakova 4 5.6
Ivor Page 3 4.2
Jaap Eldering 5 6.2
Jack Rosenthal 3 1.9
Jacob Merizia 1 5.3
Jacob Plachta 3 5.2
Jacques-Henri Jourdan 1 5.7
Jakob Krainz 3 6.1
Jakub Pachocki 2 7.6
Jakub Závodný 1 7.6
Jalal Almhana 1 2.3
James Feher 5 2.0
James Stanley 1 2.6
Jan Elffers 4 5.9
Jan Kuipers 7 5.9
Jan Stoklasa 1 6.9
Jason Pham 1 3.7
Javier Gómez Serrano 3 5.9
Jean-Christophe Filliâtre 1 4.3
Jean Niklas L'orange 4 4.8
Jeff Kinne 1 1.6
Jennifer Shimada 1 4.1
Jeroen Bransen 7 3.8
Jeroen de Jong 1 6.8
Jim Grimmett 10 4.6
Jimmy Mårdell 17 5.3
Johan Sannemo 62 5.7
John Bonomo 42 4.4
John Cigas 4 1.7
John Dethridge 4 5.5
Jon Ander Gómez 3 5.4
Jon Marius Venstad 10 4.6
Joran van Apeldoorn 1 4.5
Joris van Rantwijk 5 5.6
Josee Tasse 1 5.0
Josef Cibulka 1 6.9
José Paulo Leal 1 4.8
Joseph Swernofsky 1 8.9
Joshua Moerman 3 5.2
Joshua T. Guerin 5 3.0
Josse van Dobben de Bruyn 7 4.6
Jozef Šiška 1 3.4
Julian Baldus 1 6.0
Julian Dörfler 1 6.0
Julian Neeleman 1 6.7
Junbin Teng 1 7.7
Justin Park 1 2.6
Kai Chen 2 4.2
Karl Johan Sande Heimark 9 5.5
Kathleen Ericson 5 3.0
Kent Williams-King 4 6.9
Kristoffer Arnsfelt Hansen 1 6.5
Kristof Unterweger 1 4.6
Kyle See 2 4.9
Lap Chi Lau 1 6.8
Larry D. Pyeatt 2 6.8
Larry Pyeatt 2 4.1
Lau Lap Chi 1 6.3
Law Wai Hon 2 3.6
Lech Duraj 10 6.5
Lee Chun Yin 1 8.7
Leo Osvald 1 4.8
Leszek Horwath 1 7.1
Leung Kai Man 1 7.8
Lewin Gan 2 6.4
Liam Keliher 6 5.1
Li Cheuk Ting 2 6.3
Louis Jachiet 1 8.5
Lucas Wood 1 5.3
Luis Hernández Corbato 1 8.0
Luka Kalinovčić 4 5.3
Lukáš Poláček 49 5.6
Łukasz Matylla 1 9.1
Maciej Liskiewicz 1 6.6
Magne Vikjord 3 5.9
Magnus Øian 2 5.2
Mahbubul Hasan 2 5.5
Malcolm Sharpe 10 5.9
Måns Magnusson 3 5.4
Manuel Abellanas 1 8.5
Manuel Freire 1 2.7
Marc Furon 1 6.7
Marcus Isaksson 1 5.5
Marc Vinyals 15 6.2
Margarida Mamede 4 4.5
Marin Tomić 9 5.3
Mario Nakazawa 1 2.1
Marius Andrei 1 6.2
Mark Gordon 1 6.7
Marko Berezovsky 4 5.9
Marko Ivanković 9 3.4
Mark Theng Kwang Hui 2 7.8
Markus Dregi 2 7.2
Markus Fanebust Dregi 1 4.8
Markus S. Dregi 4 6.6
Mårten Wiman 4 6.6
Martin Kačer 1 6.9
Martin Macko 1 3.0
Mathijs de Weerdt 1 4.3
Matias Holte 1 3.8
Matija Milišić 1 5.4
Matthias Bayerlein 1 4.6
Max Wilson 1 2.3
Mees de Vries 17 5.1
Micah Stairs 2 6.0
Michael Bradet-Legris 1 4.9
Michael C Slattery 1 6.1
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 5.6
Miguel Oliveira 6 6.0
Mikael Goldmann 16 5.6
Mike Domaratzki 2 5.9
Mike Zmuda 1 3.8
Mislav Balunović 14 5.5
Mislav Bradač 3 6.0
Modan Han 6 4.1
Moritz Kobitzsch 3 5.6
Mykola Protsenko 1 3.7
Nalin Bhardwaj 1 7.1
Nathan Backman 4 4.0
Neha Kapur 1 1.5
Nguyen Tan Sy Nguyen 1 4.6
Nicholas Sharp 3 2.2
Nikola Dmitrović 5 1.5
Nikola Pintarić 1 1.3
Nils Grimsmo 4 4.0
Olav Røthe Bakken 3 4.2
Olivier Bourgeois 1 2.2
Ondřej Lhoták 32 5.2
Oskar Werkelin Ahlin 19 4.5
Owen Kaser 1 5.0
Øyvind Grotmol 8 6.4
Øyvind Haarberg 4 4.4
Paco Álvaro 1 7.1
Pål G. Drange 4 6.6
Pål Grønås Drange 5 4.7
Pär Söderhjelm 1 6.5
Paul Wild 3 4.5
Pavel Petrovic 1 6.4
Pawel Gawrychowski 2 7.2
Paweł Idziak 1 2.7
Paweł Komosa 1 7.4
Pedro Guerreiro 3 4.9
Pedro Ribeiro 1 5.0
Pedro Vasconcelos 4 4.8
Pehr Söderman 13 4.9
Peilin Zhong 1 5.3
Per Austrin 100 5.5
Peter Høyer 1 4.8
Peter Kluit 1 6.3
Peter Košinár 1 7.9
Peter Steele 3 7.3
Petr Mitrichev 1 6.9
Petter Elvevoll 2 4.0
Philip Wellnitz 1 6.0
Piotr Micek 1 6.7
Piotr Rudnicki 17 4.2
Piotr Zielinski 1 7.1
Prabhakar Ragde 2 5.7
Ragnar Groot Koerkamp 10 5.3
Ragnar Nevries 1 8.1
Ranald Lam Yun Shao 1 5.1
Raphaël Marinier 2 5.8
Raymond Kang Seng Ing 1 5.6
Raymond van Bommel 7 5.3
Richard Peng 5 5.2
R. Marshall 2 2.8
Robert Hochberg 9 5.1
Robert McGorman 1 2.3
Robert Pilgrim 1 2.9
Robin Lee 18 5.5
Roger Henriksson 1 4.6
Rudy van Vliet 1 5.6
Rujia Liu 5 5.0
Ryan Henning 2 5.9
Ryan Marshall 5 3.8
Samuel Tardieu 1 7.9
Sander Alewijnse 1 8.6
Sean McCulloch 2 7.5
Sérgio Crisóstomo 2 3.9
Serikzhan Kazi 1 4.6
Serikzhan S. Kazi 1 5.0
Shafaet Ashraf 1 9.3
Shaheed Ebrahim 1 2.7
Shahriar Manzoor 1 4.7
Shiplu Hawlader 1 4.1
Sidney Cadot 1 4.3
Silviu Maniu 2 3.0
Simon Klein 1 6.1
Simon Lindholm 4 7.2
Sonny Chan 2 4.8
Spencer Pao 1 1.6
Stefan Büttcher 3 5.1
Stefan Kraus 1 3.0
Stefan Pszczolkowski 1 1.7
Stefan Toman 1 4.9
Stein Norheim 7 5.9
Steven Halim 10 3.5
Steven Zeil 11 6.3
Stjepan Požgaj 1 5.1
Stuart Hansen 1 3.9
Suhendry Effendy 1 1.3
Svetoslav Tzvetkov 1 8.2
Swen Gaudl 1 4.9
Syx Pek 7 4.9
Thijs van Ommen 1 7.5
Thomas Beuman 4 7.0
Thomas Lidbetter 2 7.2
Thomasz Idziaszek 1 3.6
Timon Knigge 11 5.0
Tobias Werth 6 3.9
Tómas Ken Magnússon 3 4.1
Tom Fuller 1 3.7
Tommy Färnqvist 3 4.3
Tom Rokicki 1 3.6
Tom Verhoeff 1 3.2
Tonko Sabolčec 1 3.8
Tony Cai 9 4.8
Torbjørn Morland 21 4.7
Torstein Strømme 7 4.0
Troy Vasiga 3 4.2
Truls A. Björklund 1 2.6
Truls Amundsen Bjørklund 1 1.2
Tung Kam Chuen 10 6.0
Ulf Lundström 21 4.6
Ulle Endriss 1 5.1
University of Dallas 1 5.5
Unnar Freyr Erlendsson 1 1.9
Vaibhav Tulsyan 1 3.7
Vegard Sjonfjell 2 5.1
Victor Loh Bo Huai 1 7.2
Vladimir Valyukh 1 8.6
Vlado Keselj 1 5.7
Volodymyr Lyubinets 5 5.6
Walter Guttmann 1 5.9
Wenli Looi 5 3.4
William Fiset 2 5.0
William Gan Wei Liang 2 7.0
Wing-Kin Sung 1 6.9
Xiaomin Chen 5 4.9
Xiaoyuan Suo 2 4.1
Xiayuan Suo 1 1.6
Yingtao Tian 3 5.2
Ylvis 1 2.1
Yuen Chak Fai 2 4.6
Yujie An 1 6.8
Zachary Friggstad 18 4.5
Ziyi Tang 2 3.6
Zvonimir Medić 1 6.1