Problem authors

Problem Source
Problems
Average Difficulty
Justin Li36.3Hard
Justin Park12.2Easy
Jón Steinn Elíasson25.6Hard
Kai Chen34.6Medium
Karl Johan Sande Heimark95.3Medium
Karl Lundstig11.6Easy
Kathleen Ericson93.1Medium
Katie Chang12.6Easy
Kent Williams-King47Hard
Khaled Ismaeel16.3Hard
Konráð Elí Sigurgeirsson82.3Easy
Kostiantyn Denysov15.8Hard
Kristof Unterweger15.6Hard
Kristoffer Arnsfelt Hansen16Hard
Kuan Wei Heng13.5Medium
Kwee Lung Sin37.4Hard
Kyle See26.2Hard
Lalitha Kuppa33.7Medium
Lap Chi Lau15.5Hard
Larry D. Pyeatt26.3Hard
Larry Pyeatt32.9Medium
Lars Huth16.9Hard
Lars Åström33.7Medium
Lau Lap Chi14.1Medium
Law Wai Hon23.7Medium
Lawry Sorenson125.1Medium
Lech Duraj106.1Hard
Lee Chun Yin17.3Hard
Lenny Wu16.1Hard
Leo Osvald25.2Medium
Leszek Horwath17Hard
Leung Kai Man18.4Hard
Lewin Gan307.1Hard
Li Cheuk Ting27.9Hard
Liam Keliher464.7Medium
Logan Pipes16.8Hard
Loke Gustafsson96.8Hard
Louis Jachiet19.1Hard
Lovisa Diding23.2Medium
Lucas Schwebler26.8Hard
Lucas Wood13.4Medium
Lucas Xia24.7Medium
Ludo Pulles17.1Hard
Luis Hernández Corbato18.2Hard
Luka Kalinovčić55.2Medium
Luke Son13.3Medium
Lukáš Poláček505.7Hard
Maarten Sijm44.6Medium
Maciej Liskiewicz16.4Hard
Magne Vikjord35.8Hard
Magni Steinn Þorbjörnsson45.6Hard
Magnus Heghdal17.5Hard
Magnus Øian24.1Medium
Mahbubul Hasan27.9Hard
Maj Stenmark63.8Medium
Malcolm Sharpe116Hard
Manuel Abellanas17.3Hard
Manuel Freire12.7Easy
Maple18Hard
Marc Furon35.6Hard
Marc Phua Hsiao Meng106.8Hard
Marc Vinyals156.1Hard
Marcel Wienöbst17.3Hard
Marcin Kubica17Hard
Marcus Isaksson15.5Hard
Margarida Mamede44.5Medium
Marian Zuska15.6Hard
Marin Tomić94.4Medium
Mario Nakazawa12.2Easy
Marius Andrei16.3Hard
Mark Braganza15.8Hard
Mark Gordon17.2Hard
Mark Sturtevant24.9Medium
Mark Theng Kwang Hui26.9Hard
Marko Berezovsky75.3Medium
Marko Ivanković103.9Medium
Markus Dregi46.4Hard
Markus Fanebust Dregi15.5Hard
Markus S. Dregi46.6Hard
Martin Kacer46.3Hard
Martin Kačer17.6Hard
Martin Macko13.7Medium
Martin Tran62.5Easy
Martynas Kriaučiūnas16.3Hard
Massimo Cairo19Hard
Mateusz Radecki16.9Hard
Mathijs de Weerdt12.8Medium
Matias Holte12.5Easy
Matija Milišić18.7Hard
Mats Petter Pettersson11.4Easy
Mats Petter Wallander19.4Hard
Matt Davison32.4Easy
Matt Fontaine26.3Hard
Matthew Ng Zhen Rui64.2Medium
Matthias Bayerlein13.7Medium
Matthias Ruhl36.2Hard
Mattias Akke55.2Medium
Max Nilsson16.3Hard
Max Wilson12.3Easy
Maximilian Fichtl16.9Hard