Problem Authors

Problem author Problems Average Difficulty
Aarav Singh 2 4.8
A.Augusto de Sousa 1 5.5
Abel Molina 1 4.8
Abe Wits 4 5.1
Adam Polak 6 5.5
Adrian Kügel 3 5.0
Adrian Satja Kurdija 15 4.8
Akshay Goel 1 3.7
Alexander Dietsch 2 3.3
Alexander Rass 4 6.2
Alexander Scheel 2 3.5
Alexander Wei 1 5.9
Alex Brodsky 1 6.9
Alex Li 4 5.6
Alex ten Brink 1 6.6
Amar Topalovic 2 6.4
Ana Paula Tomás 3 5.3
Andreas Björklund 20 5.6
Andreas Lundblad 3 7.1
Andreas Schuh 1 1.6
André Susano Pinto 2 7.4
Andrew Ahnn 1 3.1
Andrew Gove 1 4.4
Andrew Harrington 7 3.6
Andrew Stankevich 1 7.8
Andrew Warner 1 5.8
Andriy Katkov 2 4.3
Andy Harrington 2 7.4
Andy Nguyen 2 8.5
Ante Derek 1 7.0
Anthony Han 4 5.1
Anton Grbin 2 6.6
Antonio Jurić 6 4.8
Antti Laaksonen 5 5.6
Ariana Herbst 2 5.5
Arkadiusz Pawlik 4 7.5
Arnav Sastry 5 3.8
Arne Alex 3 5.6
Arthur van Goethem 2 3.8
Arup Guha 3 5.5
Atli Fannar Franklín 6 4.8
Babak Behsaz 6 4.3
Bartholomew Furrow 3 5.9
Bartosz Walczak 2 5.8
Ben Bradshaw 1 6.3
Benjamin Reidys 1 6.8
Ben Zhang 1 4.8
Bergur Snorrason 6 4.8
Birk Tjelmeland 2 4.0
Bjarki Ágúst Guðmundsson 13 4.8
Björn Hegerfors 1 7.6
Boas Kluiving 1 5.8
Boaz Pat-El 4 4.8
Bob Pilgrim 2 4.1
Bob Roos 3 5.6
Børge Nordli 1 5.7
Bowen Yu 24 5.9
Bo Zhou 1 8.9
Brandon Fuller 9 5.0
Branimir Filipović 3 3.6
Brian Chen 1 3.5
Bruce Elenbogen 1 5.5
Bruce S. Elenbogen 1 2.8
Bruno Rahle 6 3.9
Bryce Sandlund 3 5.1
Chad Mourning 1 3.0
Chan Pak Hay 1 4.2
Chan Pak Hei 1 6.2
Charles L. A. Clarke 1 3.4
Chengyu Lin 2 7.2
Chidambaram Annamalai 1 7.7
Chin Zhan Xiong 1 6.2
Christian Hundt 1 7.6
Christian Jonassen 1 1.5
Christian Ledig 1 4.5
Christian Neverdal Jonassen 2 2.2
Christian Renner 2 4.5
Christoph Dürr 2 4.9
Christopher Raphael 1 5.9
Clark Cucinell 1 2.3
Cosmin Negruseri 4 5.4
Damian Straszak 2 6.3
Dan Folescu 1 2.4
Daniel Brinkers 2 2.2
Daniel Espling 3 6.3
Daniel Gil 1 1.7
Daniel Lokshtanov 4 6.5
Daniel Moyer 1 2.2
Daniel Paleka 1 7.8
Daniel Robbins 1 6.2
Daniel Stefankovic 3 7.1
Darcy Best 5 3.7
Darko Aleksic 7 4.0
Dave Hotchkiss 2 1.8
David Arthur 1 6.6
David García Soriano 2 5.8
David Poplawski 1 5.6
David Sturgill 74 3.9
David van Brackle 1 6.5
Deon Nicholas 5 4.7
Derek Kisman 3 7.2
Dillon Cutaiar 1 2.2
Domagoj Bradač 1 6.5
Domagoj Ćevid 2 6.4
Dominik Gleich 17 5.3
Don Reble 3 4.8
Ed Skochinski 1 8.6
Eduard Kalinicenko 1 6.9
Egor Dranischnikow 3 4.3
Eirik Reksten 1 8.4
Emilio Vivancos 1 5.1
Emma Enström 3 3.2
Enrique Martín Martín 1 8.6
Eric Hervet 1 1.9
Eric Shade 1 5.8
Erik Aas 3 7.4
Etienne Vouga 3 4.4
Felix Halim 1 2.2
Filip Barl 7 3.8
Florin Ghesu 1 6.1
Francisco Criado 1 4.6
François Aubry 2 4.1
Frane Kurtović 1 5.5
Fredrik Niemelä 2 4.9
Fredrik Svensson 4 6.6
Gerben Stavenga 3 5.8
Gilbert Lee 1 5.9
Godmar Back 31 3.7
Goran Gašić 3 5.2
Goran Žužić 9 6.1
Gordon Cormack 1 6.1
Gordon V. Cormack 46 4.9
Graeme Kemkes 1 2.9
Graeme Zinck 1 4.8
Greg Hamerly 92 4.0
Gregor Behnke 6 4.6
Grzegorz Herman 3 7.3
Gu Jin 2 5.8
Gunnar Kreitz 10 4.7
Gustav Matula 1 3.5
Hans Wennborg 1 5.0
Haochen Chen 4 5.8
Harrison Fang 2 4.0
Harry Smit 6 4.8
Hélène Verhaeghe 1 2.1
Henrik Eriksson 4 2.9
Henry Wang 1 3.3
Hon Man Hin 3 7.1
Howard Cheng 23 4.0
Hubert Teo Hua Kian 3 6.6
Hung Chun Ho 1 8.6
Ian Munro 1 2.9
Igor Naverniouk 1 7.0
Ioana Ilena 1 5.3
Irvan Jahja 8 5.7
Isaac Lee 1 7.5
Ivan Katanić 5 6.5
Ivan Paljak 7 5.1
Ivona Bezakova 4 5.9
Ivor Page 3 4.2
Jaap Eldering 5 6.1
Jack Rosenthal 3 1.8
Jacob Merizia 1 5.3
Jacob Plachta 3 5.3
Jacques-Henri Jourdan 1 7.0
Jakob Krainz 3 5.9
Jakub Pachocki 2 7.2
Jakub Závodný 1 7.6
Jalal Almhana 1 1.9
James Feher 5 1.9
James Stanley 1 2.6
Jan Elffers 4 5.1
Jan Kuipers 7 5.8
Jan Stoklasa 1 6.9
Jason Pham 1 3.4
Javier Gómez Serrano 3 5.7
Jean-Christophe Filliâtre 1 4.7
Jean Niklas L'orange 14 4.9
Jeff Kinne 1 1.5
Jennifer Lhoták 1 6.2
Jennifer Shimada 1 4.3
Jeroen Bransen 7 3.7
Jeroen de Jong 1 6.5
Jesper Öqvist 2 6.8
Jim Grimmett 10 4.6
Jimmy Mårdell 17 5.4
Johan Sannemo 66 5.7
John Bonomo 42 4.5
John Cigas 4 1.7
John Dethridge 4 5.5
Jon Ander Gómez 3 5.3
Jon Marius Venstad 10 4.8
Joran van Apeldoorn 1 3.8
Joris van Rantwijk 5 5.5
Josee Tasse 1 4.2
Josef Cibulka 1 6.9
José Paulo Leal 1 4.3
Joseph Swernofsky 2 5.2
Joshua Moerman 3 6.0
Joshua T. Guerin 5 3.0
Josse van Dobben de Bruyn 7 4.3
Jozef Šiška 1 3.2
Julian Baldus 1 6.3
Julian Dörfler 1 6.3
Julian Neeleman 1 8.1
Junbin Teng 1 7.1
Justin Park 1 2.3
Kai Chen 2 4.4
Karl Johan Sande Heimark 9 5.2
Kathleen Ericson 5 3.0
Kent Williams-King 4 6.6
Kristoffer Arnsfelt Hansen 1 5.5
Kristof Unterweger 1 3.9
Kyle See 2 4.6
Lap Chi Lau 1 7.9
Larry D. Pyeatt 2 6.7
Larry Pyeatt 2 4.0
Lau Lap Chi 1 6.3
Law Wai Hon 2 3.6
Lech Duraj 10 6.5
Lee Chun Yin 1 8.8
Leo Osvald 2 5.0
Leszek Horwath 1 6.8
Leung Kai Man 1 8.2
Lewin Gan 2 5.9
Liam Keliher 11 4.1
Li Cheuk Ting 2 5.9
Louis Jachiet 1 8.3
Lucas Wood 1 4.9
Luis Hernández Corbato 1 7.6
Luka Kalinovčić 4 4.8
Lukáš Poláček 49 5.5
Łukasz Matylla 1 8.8
Maciej Liskiewicz 1 6.5
Magne Vikjord 3 6.0
Magnus Øian 2 4.8
Mahbubul Hasan 2 6.0
Malcolm Sharpe 10 6.0
Måns Magnusson 7 5.1
Manuel Abellanas 1 7.1
Manuel Freire 1 2.6
Marc Furon 1 6.6
Marcus Isaksson 1 5.7
Marc Vinyals 15 6.0
Margarida Mamede 4 4.9
Marin Tomić 9 5.5
Mario Nakazawa 1 2.1
Marius Andrei 1 5.6
Mark Gordon 1 6.8
Marko Berezovsky 4 5.9
Marko Ivanković 9 3.5
Mark Theng Kwang Hui 2 7.7
Markus Dregi 2 7.1
Markus Fanebust Dregi 1 4.7
Markus S. Dregi 4 6.6
Mårten Wiman 4 6.5
Martin Kačer 1 6.9
Martin Macko 1 3.0
Mathijs de Weerdt 1 3.9
Matias Holte 1 3.2
Matija Milišić 1 6.9
Matthias Bayerlein 1 4.2
Max Wilson 1 2.0
Mees de Vries 17 4.9
Micah Stairs 5 5.9
Michael Bradet-Legris 1 4.8
Michael C Slattery 1 6.2
Michael Goldwasser 7 5.0
Michael Zmuda 1 1.4
Michal Forišek 6 3.3
Michał Pilipczuk 5 4.8
Michał Sapalski 1 6.4
Miguel Araújo 6 5.7
Miguel Oliveira 6 6.3
Mikael Goldmann 16 5.6
Mike Domaratzki 2 5.7
Mike Zmuda 1 3.6
Mislav Balunović 14 5.4
Mislav Bradač 3 6.2
Modan Han 6 4.3
Moritz Kobitzsch 3 5.1
Mykola Protsenko 1 3.4
Nalin Bhardwaj 1 7.1
Nathan Backman 4 4.0
Neha Kapur 1 1.4
Nguyen Tan Sy Nguyen 1 3.9
Nicholas Sharp 3 2.2
Nikola Dmitrović 5 1.5
Nikola Pintarić 1 1.3
Nils Grimsmo 4 4.3
Nils Gustafsson 3 2.7
Olav Røthe Bakken 3 4.3
Olivier Bourgeois 1 2.2
Ondřej Lhoták 35 5.3
Oskar Werkelin Ahlin 19 4.4
Owen Kaser 1 4.2
Øyvind Grotmol 8 6.1
Øyvind Haarberg 4 4.5
Paco Álvaro 1 7.2
Pål G. Drange 4 6.6
Pål Grønås Drange 5 4.8
Pär Söderhjelm 1 6.1
Paul Wild 3 5.3
Pavel Petrovic 1 6.0
Pawel Gawrychowski 2 7.2
Paweł Idziak 1 2.6
Paweł Komosa 1 8.0
Pedro Guerreiro 3 4.6
Pedro Ribeiro 1 4.9
Pedro Vasconcelos 4 4.4
Pehr Söderman 13 5.0
Peilin Zhong 1 5.0
Per Austrin 103 5.5
Peter Høyer 1 4.6
Peter Kluit 1 8.0
Peter Košinár 1 7.9
Peter Steele 3 7.0
Petr Mitrichev 1 6.6
Petter Elvevoll 2 4.0
Philip Wellnitz 1 6.3
Piotr Micek 1 6.7
Piotr Rudnicki 18 4.2
Piotr Zielinski 1 7.0
Prabhakar Ragde 2 5.4
Ragnar Groot Koerkamp 10 5.2
Ragnar Nevries 1 7.6
Ranald Lam Yun Shao 1 5.3
Raphaël Marinier 2 5.2
Raymond Kang Seng Ing 1 5.3
Raymond van Bommel 7 5.2
Richard Peng 5 5.1
R. Marshall 2 3.1
Robert Hochberg 9 5.0
Robert McGorman 1 1.9
Robert Pilgrim 1 2.8
Robin Christopher Yu 18 6.5
Robin Lee 18 5.6
Roger Henriksson 1 4.4
Rudy van Vliet 1 5.9
Rujia Liu 5 4.9
Ryan Henning 2 5.7
Ryan Marshall 5 3.8
Samuel Tardieu 1 7.3
Sander Alewijnse 1 8.5
Scott McGowan 1 4.6
Sean McCulloch 2 7.4
Sérgio Crisóstomo 2 3.8
Serikzhan Kazi 1 4.6
Serikzhan S. Kazi 1 4.9
Shafaet Ashraf 1 9.1
Shaheed Ebrahim 1 3.1
Shahriar Manzoor 1 5.1
Shiplu Hawlader 1 4.6
Sidhant Bansal 2 4.5
Sidney Cadot 1 3.9
Silviu Maniu 2 3.4
Simon Klein 1 5.2
Simon Lindholm 5 7.2
Sonny Chan 2 4.2
Spencer Pao 1 1.8
Stefan Büttcher 3 5.3
Stefan Kraus 1 3.2
Stefan Pszczolkowski 1 1.7
Stefan Toman 1 3.6
Stein Norheim 7 6.0
Steven Halim 12 4.0
Steven Zeil 11 5.9
Stjepan Požgaj 1 5.2
Stuart Hansen 1 3.8
Suhendry Effendy 1 1.6
Svetoslav Tzvetkov 1 8.6
Swen Gaudl 1 6.4
Syx Pek 7 6.0
Tan Jun An 2 5.1
Thijs van Ommen 1 6.9
Thomas Beuman 4 7.0
Thomas Lidbetter 4 6.8
Thomasz Idziaszek 1 4.7
Timon Knigge 11 5.1
Tobias Werth 6 3.9
Tómas Ken Magnússon 3 4.1
Tom Fuller 1 2.9
Tommy Färnqvist 3 4.5
Tom Rokicki 1 3.5
Tom Verhoeff 1 3.5
Tonko Sabolčec 1 3.8
Tony Cai 12 4.6
Torbjørn Morland 21 4.8
Torstein Strømme 7 4.4
Troy Vasiga 3 4.3
Truls A. Björklund 1 2.3
Truls Amundsen Bjørklund 1 1.3
Tung Kam Chuen 10 6.6
Ulf Lundström 21 4.6
Ulle Endriss 1 5.0
University of Dallas 1 5.4
Unnar Freyr Erlendsson 1 2.0
Vaibhav Tulsyan 1 4.5
Vegard Sjonfjell 2 4.8
Victor Loh Bo Huai 1 7.4
Vladimir Valyukh 3 6.7
Vlado Keselj 1 6.0
Volodymyr Lyubinets 5 6.4
Walter Guttmann 1 6.9
Wenli Looi 5 3.5
William Fiset 3 5.6
William Gan Wei Liang 2 7.1
Wing-Kin Sung 1 6.8
Xiaomin Chen 5 5.1
Xiaoyuan Suo 2 4.0
Xiayuan Suo 1 1.6
Yingtao Tian 3 5.4
Ylvis 1 2.1
Yuen Chak Fai 2 5.1
Yujie An 1 6.6
Zachary Friggstad 18 4.7
Zachary Geier 1 4.5
Ziyi Tang 2 4.0
Zvonimir Medić 1 5.9