Problem Authors

Problem author Problems Average Difficulty
Aarav Singh 2 4.6
Aaron Deever 2 6.1
A.Augusto de Sousa 1 6.6
Abel Molina 1 4.7
Abe Wits 4 5.8
Adam Polak 6 5.7
Adrian Kügel 3 4.8
Adrian Satja Kurdija 18 4.7
Akshay Goel 1 4.2
Alexander Dietsch 4 5.0
Alexander Rass 4 6.3
Alexander Scheel 2 3.4
Alexander Wei 1 5.9
Alex Brodsky 1 6.9
Alex Li 4 5.9
Alex Lind 2 3.6
Alex ten Brink 1 5.1
Amar Topalovic 2 6.4
Ana Paula Tomás 3 3.9
Andreas Björklund 21 5.5
Andreas Lundblad 3 7.4
Andreas Schuh 1 1.7
André Susano Pinto 2 8.1
Andrew Ahnn 2 4.4
Andrew Baas 1 5.7
Andrew Gove 1 3.3
Andrew Harrington 7 3.6
Andrew Nuxoll 1 4.5
Andrew Stankevich 1 8.5
Andrew Warner 1 6.2
Andriy Katkov 2 3.8
Andy Harrington 2 6.5
Andy Nguyen 2 8.5
Ante Derek 1 6.9
Anthony Han 4 5.3
Anton Grbin 2 7.5
Antonio Jurić 6 4.9
Antti Laaksonen 8 5.4
Arash Behpour 1 3.1
Ariana Herbst 2 5.5
Arkadiusz Pawlik 4 8.0
Arnar Bjarni Arnarson 3 2.1
Arnav Sastry 8 4.1
Arne Alex 3 5.6
Arthur van Goethem 2 3.8
Arup Guha 3 5.4
Atli Fannar Franklín 6 4.9
Babak Behsaz 6 4.3
BAPC jury 2019 1 6.9
Bartholomew Furrow 3 6.5
Bartosz Walczak 2 6.3
Ben Bradshaw 1 4.8
Benjamin Reidys 3 5.0
Ben Zhang 1 6.8
Bergur Snorrason 12 4.5
Birk Tjelmeland 2 4.8
Bjarki Ágúst Guðmundsson 18 4.7
Björn Hegerfors 1 7.6
Björn Magnusson 1 9.1
Björn Martinsson 2 6.6
Boas Kluiving 1 5.4
Boaz Pat-El 4 4.9
Bob Pilgrim 2 3.8
Bob Roos 9 5.5
Børge Nordli 2 5.7
Bowen Yu 33 6.1
Bo Zhou 2 9.0
Brandon Fuller 13 4.4
Branimir Filipović 3 3.3
Brian Chen 1 2.8
Brook Tamir 1 7.0
Bruce Elenbogen 1 5.2
Bruce S. Elenbogen 1 2.7
Bruno Ploumhans 1 4.4
Bruno Rahle 7 3.6
Bryce Sandlund 4 5.4
Calvin Godfrey 1 5.4
Calvin Li 1 1.9
Chad Mourning 1 2.7
Chan Pak Hay 1 4.1
Chan Pak Hei 1 6.6
Charles L. A. Clarke 1 4.3
Chengyu Lin 3 6.2
Chidambaram Annamalai 1 7.9
Chin Zhan Xiong 1 7.6
Christian Hundt 1 7.9
Christian Jonassen 1 1.4
Christian Ledig 1 4.4
Christian Neverdal Jonassen 2 2.1
Christian Renner 2 4.6
Christoph Dürr 2 4.7
Christopher Raphael 1 5.5
Clark Cucinell 1 2.5
Colin Peppler 1 3.7
Cosmin Negruseri 4 6.3
Daan van Gent 2 6.9
Damian Straszak 2 5.4
Dan Folescu 1 1.7
Daniel Brinkers 2 2.4
Daniel Espling 3 5.7
Daniel Gil 1 2.0
Daniel Lokshtanov 4 6.2
Daniel Moyer 1 2.2
Daniel Paleka 1 7.3
Daniel Robbins 1 7.5
Daniel Stefankovic 5 7.7
Dante Bencivenga 2 5.5
Darcy Best 7 3.9
Darko Aleksic 7 4.1
Dave Hotchkiss 2 2.0
David Arthur 1 7.3
David García Soriano 2 6.1
David Poplawski 1 5.5
David Sturgill 74 3.8
David van Brackle 1 6.5
David Van Brackle 2 6.5
David Venhoek 2 4.6
David Zheng 5 4.8
Deon Nicholas 5 4.8
Derek Kisman 3 7.5
Dillon Cutaiar 1 2.0
Domagoj Bradač 1 6.0
Domagoj Ćevid 2 6.4
Dominik Gleich 17 5.5
Don Reble 3 4.7
Ed Skochinski 1 7.8
Eduard Kalinicenko 1 8.0
Edvard Kristoffer Neset Karlsen 1 4.8
Egor Dranischnikow 3 4.3
Eirik Reksten 1 3.8
Emilio Vivancos 1 4.9
Emma Enström 3 3.0
Enrique Martín Martín 1 8.0
Eric Hervet 1 2.1
Eric Shade 1 4.0
Erik Aas 3 6.9
Erik Amirell Eklöf 3 5.9
Erling Alf Ellingsen 1 6.3
Etienne Vouga 11 5.3
Evan Quach 1 3.2
Eyleifur Ingþór Bjarkason 1 4.9
Felix Halim 1 2.4
Filiberto Fuentes 1 6.5
Filip Barl 7 4.1
Florin Ghesu 1 7.8
Francisco Criado 1 4.8
François Aubry 2 4.0
Frane Kurtović 1 5.0
Fredrik Hernqvist 2 4.8
Fredrik Niemelä 2 4.5
Fredrik Svensson 4 6.4
Gabriela Velazquez-Pergola 1 3.9
Gerben Stavenga 3 5.8
Gilbert Lee 1 5.4
Godmar Back 42 4.0
Goran Gašić 3 5.6
Goran Žužić 9 6.2
Gordon Cormack 1 7.6
Gordon V. Cormack 46 4.8
Graeme Kemkes 1 2.9
Graeme Zinck 2 4.4
Greg Hamerly 99 3.8
Gregor Behnke 6 4.7
Grzegorz Herman 3 7.6
Gu Jin 3 6.8
Gunnar Kreitz 11 4.9
Gustav Matula 1 2.6
Hans Wennborg 1 5.5
Haochen Chen 4 5.9
Harrison Fang 2 3.3
Harry Smit 6 5.4
Hélène Verhaeghe 1 2.5
Henrik Eriksson 4 3.0
Henry Wang 2 4.3
Henry Xia 4 6.2
Hon Man Hin 3 5.5
Howard Cheng 31 3.8
Hubert Teo Hua Kian 3 7.2
Hung Chun Ho 1 8.8
Ian Munro 1 2.9
Igor Naverniouk 1 6.9
Ioana Ilena 1 4.7
Irina Kostitsyna 1 4.3
Irvan Jahja 8 5.9
Isaac Arvestad 4 3.8
Isaac Lee 2 6.6
Ivan Katanić 6 6.5
Ivan Paljak 7 5.1
Ivona Bezakova 7 6.6
Ivor Page 3 4.3
Jaap Eldering 5 5.9
Jack Rosenthal 3 1.8
Jacob Merizia 1 4.2
Jacob Plachta 3 4.4
Jacques-Henri Jourdan 1 5.9
Jaehyun Park 1 7.0
Jakob Krainz 3 4.9
Jakub Pachocki 2 7.7
Jakub Závodný 1 8.1
Jalal Almhana 1 2.1
James Feher 5 2.1
James Stanley 1 2.7
Jan Elffers 4 5.6
Jan Kuipers 8 6.0
Jan Stoklasa 1 6.6
Jason Pham 1 4.2
Javier Gómez Serrano 3 5.5
Jean-Christophe Filliâtre 1 4.1
Jean Niklas L'orange 22 4.9
Jeff Kinne 1 1.4
Jeffrey Peng 1 5.8
Jennifer Lhoták 1 6.1
Jennifer Shimada 1 4.6
Jeroen Bransen 8 3.8
Jeroen de Jong 1 5.7
Jesper Öqvist 4 5.7
Jim Grimmett 10 4.8
Jimmy Mårdell 18 5.5
Jingbo Shang 8 5.5
Johan Sannemo 83 5.8
John Bonomo 46 4.8
John Cigas 4 1.8
John Dethridge 4 5.7
Jon Ander Gómez 3 5.2
Jon Marius Venstad 10 5.1
Joran van Apeldoorn 1 4.8
Joris van Rantwijk 5 5.3
Jorke de Vlas 2 5.5
Josee Tasse 1 5.2
Josef Cibulka 1 6.6
José Paulo Leal 1 4.2
Joseph Swernofsky 3 4.2
Joshua Moerman 3 6.5
Joshua T. Guerin 7 3.0
Josse van Dobben de Bruyn 7 4.0
Jozef Šiška 1 3.1
Julian Baldus 1 7.0
Julian Dörfler 1 7.0
Julian Neeleman 1 8.2
Junbin Teng 1 7.0
Justas Klimavičius 1 3.5
Justin Park 1 2.8
Kai Chen 3 4.5
Karl Johan Sande Heimark 9 4.9
Karl Lundstig 1 1.7
Kathleen Ericson 7 3.0
Kent Williams-King 4 6.3
Kristoffer Arnsfelt Hansen 1 5.8
Kristof Unterweger 1 6.4
Kuan Wei Heng 1 3.6
Kwee Lung Sin 3 6.5
Kyle See 2 6.1
Lalitha Kuppa 3 3.0
Lap Chi Lau 1 7.1
Larry D. Pyeatt 2 5.4
Larry Pyeatt 2 3.6
Lars Åström 3 3.6
Lau Lap Chi 1 6.3
Law Wai Hon 2 3.7
Lech Duraj 10 6.0
Lee Chun Yin 1 8.7
Leo Osvald 2 6.7
Leszek Horwath 1 8.0
Leung Kai Man 1 8.3
Lewin Gan 4 6.1
Liam Keliher 17 4.4
Li Cheuk Ting 2 5.9
Louis Jachiet 1 8.2
Lucas Wood 1 4.0
Luis Hernández Corbato 1 8.8
Luka Kalinovčić 5 5.3
Lukáš Poláček 50 5.5
Łukasz Matylla 1 7.6
Maciej Liskiewicz 1 6.7
Magne Vikjord 3 6.1
Magnus Øian 2 5.1
Mahbubul Hasan 2 5.9
Maj Stenmark 2 3.0
Malcolm Sharpe 11 6.2
Måns Magnusson 9 4.3
Manuel Abellanas 1 7.4
Manuel Freire 1 3.3
Marc Furon 1 6.1
Marcus Isaksson 1 5.4
Marc Vinyals 15 6.0
Margarida Mamede 4 4.6
Marin Tomić 9 5.3
Mario Nakazawa 1 1.9
Marius Andrei 1 6.4
Mark Braganza 1 5.0
Mark Gordon 1 7.6
Marko Berezovsky 6 4.9
Marko Ivanković 10 4.0
Mark Theng Kwang Hui 2 7.8
Markus Dregi 4 6.0
Markus Fanebust Dregi 1 5.2
Markus S. Dregi 4 6.3
Mårten Wiman 5 6.6
Martin Kačer 1 6.6
Martin Macko 1 3.2
Mārtiņš Opmanis 1 9.3
Martin Tran 5 2.4
Mathijs de Weerdt 1 3.5
Matias Holte 1 3.0
Matija Milišić 1 7.4
Mats Petter Pettersson 1 1.3
Matt Davison 3 2.7
Matthew Ng Zhen Rui 6 4.5
Matthias Bayerlein 1 4.1
Mattias Akke 4 5.2
Max Wilson 1 2.1
Mees de Vries 24 4.6
Micah Stairs 6 6.4
Michael Bradet-Legris 1 2.4
Michael C Slattery 1 7.2
Michael Goldwasser 7 4.8
Michael Zmuda 1 1.6
Michal Forišek 6 3.1
Michał Pilipczuk 5 4.5
Michał Sapalski 1 7.6
Miguel Araújo 6 5.0
Miguel Oliveira 6 6.4
Mikael Goldmann 17 5.3
Mike Domaratzki 3 5.7
Mike Zmuda 1 3.2
Ming-Yee Iu 1 5.5
Mislav Balunović 14 5.4
Mislav Bradač 3 7.1
Modan Han 6 4.3
Moritz Kobitzsch 3 5.5
Mykola Protsenko 1 3.5
Nalin Bhardwaj 1 6.6
Nathan Backman 4 3.8
Nathan Mytelka 1 6.4
Neha Kapur 1 1.3
Nguyen Dinh Quang Minh 9 7.3
Nguyen Tan Sy Nguyen 1 4.5
Nicholas Sharp 3 2.0
Nicolas Hardy 3 3.0
Nicole Hedblom 1 5.4
Nikola Dmitrović 5 1.5
Nikola Pintarić 1 1.2
Nils Barlaug 2 6.7
Nils Grimsmo 5 4.4
Nils Gustafsson 29 5.7
Óðinn Eyjólfsson 1 2.5
Olav Røthe Bakken 7 4.9
Olivier Bourgeois 1 2.1
Ómar Högni Guðmarsson 1 1.5
Ondřej Lhoták 43 5.0
Onno Berrevoets 2 1.7
Oskar Werkelin Ahlin 19 4.4
Owen Kaser 1 5.2
Øyvind Grotmol 8 6.4
Øyvind Haarberg 4 4.3
Paco Álvaro 1 7.7
Pål G. Drange 4 6.3
Pål Grønås Drange 6 4.6
Pär Söderhjelm 1 5.8
Paul Wild 5 5.5
Pavel Petrovic 1 5.2
Pawel Gawrychowski 2 8.2
Paweł Idziak 1 2.4
Paweł Komosa 1 7.1
Pedro Guerreiro 3 5.5
Pedro Ribeiro 1 7.8
Pedro Vasconcelos 4 4.8
Pehr Söderman 16 4.6
Peilin Zhong 2 7.2
Per Austrin 112 5.5
Peter Høyer 1 4.4
Peter Kluit 1 7.8
Peter Košinár 1 6.8
Peter Steele 3 7.3
Petr Mitrichev 1 6.6
Petter Elvevoll 2 4.3
Philip Wellnitz 1 7.0
Piotr Micek 1 7.2
Piotr Rudnicki 20 4.4
Piotr Zielinski 1 5.8
Prabhakar Ragde 2 4.6
Ragnar Groot Koerkamp 15 4.8
Ragnar Nevries 1 7.9
Ranald Lam Yun Shao 2 7.4
Raphaël Marinier 2 5.8
Raymond Kang Seng Ing 1 5.7
Raymond van Bommel 10 4.7
Richard Peng 5 5.5
R. Marshall 2 2.9
Robert Hochberg 10 4.8
Robert McGorman 1 2.1
Robert Pilgrim 1 2.4
Robin Christopher Yu 49 6.8
Robin Lee 19 5.4
Roger Henriksson 1 4.6
Rudy van Vliet 1 5.9
Rujia Liu 5 4.9
Ryan Henning 2 5.4
Ryan Marshall 5 3.8
Saketh Are 1 5.8
Samuel Furman 3 3.0
Samuel Tardieu 1 6.8
Sander Alewijnse 1 9.2
Sander Land 1 7.2
Scott McGowan 1 4.2
Sean McCulloch 3 7.1
Sérgio Crisóstomo 2 3.9
Serikzhan Kazi 1 5.7
Serikzhan S. Kazi 1 4.0
Shafaet Ashraf 1 9.3
Shaheed Ebrahim 1 3.0
Shahriar Manzoor 1 6.3
Shantanu Modak 1 7.2
Shiplu Hawlader 1 4.9
Sidhant Bansal 2 3.6
Sidney Cadot 1 3.5
Sigurður Jens Albertsson 1 1.4
Silviu Maniu 2 3.2
Simon Klein 1 5.7
Simon Lindholm 18 7.0
Sondre Sortland 2 6.7
Sonny Chan 3 4.3
Spencer Pao 1 2.1
Stefan Büttcher 3 5.4
Stefan Kraus 1 3.3
Stefan Pszczolkowski 1 1.7
Stefan Toman 1 3.5
Stein Norheim 7 5.8
Steven Halim 24 5.0
Steven Wijaya 2 8.0
Steven Zeil 11 5.3
Stjepan Glavina 2 5.4
Stjepan Požgaj 1 4.2
Stuart Hansen 1 3.8
Suhendry Effendy 1 1.5
Svetoslav Tzvetkov 1 7.8
Swen Gaudl 1 7.0
Synopsys 1 5.8
Syx Pek 7 5.5
Tähvend Uustalu 1 6.1
Tan Jun An 2 3.5
Thierry Lavoie 1 5.8
Thijs van Ommen 1 7.8
Thomas Beuman 4 7.3
Thomas Lidbetter 6 6.9
Thomasz Idziaszek 1 4.5
Thore Husfeldt 7 5.1
Timon Knigge 18 4.7
Tobias Werth 6 4.2
Tómas Ken Magnússon 4 4.4
Tomas Rokicki 1 5.7
Tom Fuller 1 2.6
Tommy Färnqvist 3 4.3
Tom Rokicki 1 3.1
Tom Verhoeff 1 2.9
Tonko Sabolčec 1 3.5
Tony Cai 12 4.6
Torbjørn Morland 21 4.6
Torstein Strømme 16 4.5
Troy Vasiga 3 4.0
Truls A. Björklund 1 2.2
Truls Amundsen Bjørklund 1 1.3
Tung Kam Chuen 10 6.4
Ulf Lundström 23 4.7
Ulle Endriss 1 4.8
University of Dallas 1 5.2
Unnar Freyr Erlendsson 2 2.3
Vaibhav Tulsyan 1 4.2
Vamsi Manne 1 3.5
Vegard Sjonfjell 2 4.0
Victor Loh Bo Huai 1 7.3
Vinh Pham 1 6.0
Vladimir Valyukh 3 6.7
Vlado Keselj 1 7.1
Volodymyr Lyubinets 6 5.6
Walter Guttmann 1 6.1
Wenda Qiu 3 5.6
Wenli Looi 5 3.1
William Fiset 4 4.3
William Gan Wei Liang 2 7.3
Wing-Kin Sung 1 6.8
Xiaomin Chen 5 5.0
Xiaoyuan Suo 2 3.6
Xiayuan Suo 1 1.5
Yen Truong 1 5.2
Yingtao Tian 3 5.4
Ylvis 1 2.1
Yuen Chak Fai 2 5.4
Yujie An 2 6.9
Zachary Friggstad 28 4.6
Zachary Geier 1 7.6
Zack Butler 7 4.7
Ziyi Tang 2 3.6
Zvonimir Medić 1 6.6