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Problem authors

Problem Source
Problems
Average Difficulty
Lau Lap Chi14.7Medium
Law Wai Hon23.7Medium
Lawry Sorenson154.7Medium
Lech Duraj106Hard
Lee Chun Yin17Hard
Lenny Wu16.3Hard
Leo Osvald25.3Medium
Leszek Horwath16.9Hard
Leung Kai Man18.4Hard
Levi Sprung11.8Easy
Lewin Gan307.2Hard
Li Cheuk Ting28Hard
Liam Keliher494.7Medium
Liam Warfield11.8Easy
Logan Pipes16.6Hard
Loke Gustafsson96.6Hard
Louis Jachiet18.9Hard
Lovisa Diding23.2Medium
Luca Versari18.9Hard
Lucas Alber14.6Medium
Lucas Gretta36.2Hard
Lucas Schwebler36.6Hard
Lucas Wood13.3Medium
Lucas Xia35.8Hard
Ludo Pulles37.2Hard
Luis Hernández Corbato18.4Hard
Luka Kalinovčić55.3Medium
Luke DiGiovanna17.9Hard
Luke Son13.2Medium
Lukáš Poláček505.6Hard
Maarten Sijm94Medium
Maceo Cardinale Kwik17.5Hard
MachineFossil13Medium
Maciej Liskiewicz17.1Hard
Magne Vikjord35.9Hard
Magni Steinn Þorbjörnsson56.1Hard
Magnus Heghdal18.1Hard
Magnus Øian24.1Medium
Magnús Már Halldórsson54.7Medium
Mahbubul Hasan28.1Hard
Maj Stenmark93.2Medium
Malcolm Sharpe116Hard
Manuel Abellanas17.2Hard
Manuel Freire12.6Easy
Manuel Torres Cid17Hard
Maple17.5Hard
Marc Furon35.5Medium
Marc Phua Hsiao Meng106.5Hard
Marc Vinyals156.1Hard
Marcel Wienöbst35.6Hard
Marcin Kubica17.1Hard
Marcus Isaksson15.4Medium
Margarida Mamede44.4Medium
Marian Zuska14.4Medium
Marin Tomić94.5Medium
Mario Nakazawa12.2Easy
Marius Andrei16.3Hard
Mark Braganza15.1Medium
Mark Gordon17.4Hard
Mark McCormick17.8Hard
Mark Sturtevant33.9Medium
Mark Theng Kwang Hui26.8Hard
Mark Wen18.5Hard
Marko Berezovsky75.3Medium
Marko Ivanković103.8Medium
Markus Dregi46.4Hard
Markus Fanebust Dregi15.4Medium
Markus S. Dregi46.4Hard
Martin Kacer46.3Hard
Martin Kačer17.5Hard
Martin Macko13.6Medium
Martin Tran62.5Easy
Martynas Kriaučiūnas16.2Hard
Massimo Cairo19.2Hard
Mateusz Radecki17.5Hard
Mathijs de Weerdt12.6Easy
Matias Holte12.4Easy
Matija Milišić18.9Hard
Mats Petter Pettersson11.4Easy
Mats Petter Wallander19.4Hard
Matt Davison32.4Easy
Matt Fontaine26.6Hard
Matt Iverson17.5Hard
Matthew Iverson11.9Easy
Matthew Ng Zhen Rui64.2Medium
Matthias Bayerlein13.6Medium
Matthias Ruhl36.8Hard
Mattias Akke55Medium
Max Nilsson15.8Hard
Max Wilson12.3Easy
Maximilian Fichtl16.9Hard
Maximilliano Utomo Quok95.9Hard
Mees de Vries344.6Medium
Mehfuz A Rahman12.6Easy
Mete Saka23.1Medium
Micah Stairs66.1Hard
Michael Baer16.7Hard
Michael Bradet-Legris13.4Medium
Michael C Slattery16.1Hard
Michael Goldwasser74.7Medium
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