APL Problem Solving Competition: Difference between revisions

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The '''APL Problem Solving Competition''' is a yearly contest hosted by [[Dyalog Ltd.]]
The '''APL Problem Solving Competition''' was a yearly contest hosted by [[Dyalog Ltd.]] During the [[Dyalog user meeting]] that followed shortly after the competition closed, the winners were announced, followed by presentations by the grand prize winner and the professional prize winner. In 2024, the competition was replaced by the new [[APL Challenge]] and the new [[APL Forge]].


== Winners ==
The [[APL Quest]] is a series of chat events and follow-up videos addressing the Phase 1 problems of past years.
=== 2019 ===
 
=== 2009 ===
[https://www.dyalog.com/news/2/420/Dyalog-Announces-Winners-of-Worldwide-Computer-Programming-Contest.htm Announcement and about the grand prize winner]
{| class="wikitable"
|'''Grand Prize'''|| Ronald Chan || Auckland, New Zealand
|-
|'''2nd Place'''|| Chris King || Brown University, Rhode Island USA
|-
|'''3rd Place'''|| Maks Verver || The Netherlands
|-
|}
 
=== 2010 ===
[https://www.dyalog.com/news/34/420/Meet-the-winners-of-the-World-Wide-Programming-Competition-2010.htm About the winners]
{| class="wikitable"
|'''Grand Prize'''|| Ryan Tarpine || Brown University, Providence, Rhode Island, USA.
|-
|'''2nd Place'''|| Mstislav Elagin || Humboldt-Universität zu Berlin, Germany
|-
|'''3rd Place'''|| Joel Hough || Salt Lake Community College, Kaysville Utah, USA
|-
|'''Special Effort'''||Alexander Ivanov || Moscow Institute for Physical Research
|}
 
=== 2011 ===
[https://www.dyalog.com/news/59/420/Programming-Contest-Winners.htm About the winners]
{| class="wikitable"
|'''Grand Prize'''|| Joel Hough || The University of Utah, USA
|-
|'''2nd Place'''|| Yanqing Chen || Stony Brook University, New York, USA
|-
|'''3rd Place'''|| Elliot Way || Binghamton University, New York, USA
|-
|}
 
=== 2012 ===
[https://www.dyalog.com/news/72/420/4th-World-Wide-APL-Programming-Contest-Winner-Announced.htm Announcement and about the winner]
{| class="wikitable"
|'''Grand Prize'''|| Hayato Hashimoto || Kyoto University, Japan
|}
 
=== 2013 ===
[https://www.dyalog.com/news/83/420/2013-APL-Programming-Contest-winners.htm Announcement and about the winners]
{| class="wikitable"
|'''Grand Prize'''|| Yanqing Chen|| Stony Brook University, USA
|-
|'''2nd Place'''|| Maks Verver || The Netherlands
|-
|'''3rd Place'''|| Chao Xu || University of Illinois, Urbana-Champaign, USA
|-
|}
 
=== 2014 ===
[https://www.dyalog.com/news/93/456/Winners-Announced-for-the-2014-APL-Programming-Contest.htm Announcement]
 
[https://www.dyalog.com/news/94/420/2014-APL-Programming-Contest-Winners.htm About the winners]
This was the first year in which a prize was offered to non-student entrants.
{| class="wikitable"
|'''Grand Prize'''|| Emil Bremer Orloff || Aarhus University, Denmark
|-
|'''2nd Place'''|| Seán Kelleher || University College Cork, Ireland
|-
|'''3rd Place'''|| Chao Xu || University of Illinois, Urbana-Champaign, U.S.A
|-
|'''Professional Prize'''|| Iryna Pashenkovska || SimCorp Ukraine
|-
|rowspan=2|'''Honourable mention'''||Jan-Pieter Jacobs || Universiteit Antwerpen, Belgium
|-
| Christopher Zhang || State University of New York at Binghamton, U.S.A.
|}
 
=== 2015 ===
[https://www.dyalog.com/news/101/456/Winners-Announced-for-the-2015-APL-Programming-Contest.htm Announcement]
 
[https://www.dyalog.com/news/102/420/2015-APL-Programming-Contest-Winners.htm About the winners]
 
{| class="wikitable"
|'''Grand Prize'''|| Arianna Locatelli || Liceo Classico S. M. Legnani, Saronno, Italy
|-
|'''2nd Place'''|| Joshua (Josh) David || University of Scranton, USA
|-
|'''3rd Place'''|| Dragana Babić || University of Novi Sad, Serbia
|-
|'''Professional Prize'''|| Roberto Szabó
|-
| rowspan=2 | '''Honourable mention''' || Alexander Kuhnle || Cambridge University, U.K.
|-
| Luyang Du || State University of New York at Binghamton, U.S.A.
|}
 
=== 2016 ===
[https://www.dyalog.com/news/110/456/Winners-Announced-for-the-2016-APL-Programming-Contest.htm Announcement]
 
[https://www.dyalog.com/news/112/420/2016-APL-Programming-Contest-Winners.htm About the winners]
 
This round of the competition offered 3 grand prizes, one each in the subject domains of finance, general computing and bioinformatics.
 
{| class="wikitable"
|'''Grand Prize (Finance)'''|| Janos (Zack) Batik || University of Cape Town, South Africa
|-
|'''Grand Prize (General Computing)'''|| Joshua (Josh) David || University of Scranton, USA
|-
|'''Grand Prize (Bioinformatics)'''|| Marinus Oosters || Universiteit Utrecht, The Netherlands
|-
|'''Professional Prize'''|| Mike Powell
|-
|'''Runner-up (Finance)''' || Rafael Rodrigues || Fundação Getulio Vargas, Brazil
|-
|'''Runner-up (General Computing)''' || Imaculate Mosha || University of Cape Town, South Africa
|-
|'''Runner-up (Bioinformatics)''' || Louis de Forcrand || Ecole Moser, Switzerland
|}


[https://www.dyalog.com/news/134/420/2019-APL-Problem-Solving-Competition-Winners.htm Announcement]
=== 2017 ===
[https://www.dyalog.com/news/118/456/Winners-Announced-for-the-2017-APL-Programming-Contest.htm Announcement]


[https://www.dyalog.com/news/136/420/2019-APL-Problem-Solving-Competition-Winners.htm About the winners]
[https://www.dyalog.com/news/119/420/2017-APL-Programming-Contest-Winners.htm About the winners]


{| class="wikitable"
{| class="wikitable"
|'''Grand Prize'''|| Jamin Wu || Monash University, Australia
|'''Grand Prize'''|| Kostas Blekos || Panepistimion Patron, Greece
|-
|-
|'''2nd Place'''|| Rasmus Précenth || Uppsala University, Sweden
|'''2nd Place'''|| Douglas Patz || Agile Learning Center, New York City, USA
|-
|-
|'''3rd Place'''|| Douglas Patz || Agile Learning Center, New York City, USA
|'''3rd Place'''|| Zachary Taylor || Maryville High School, USA
|-
|-
|'''Professional Prize'''|| Torsten Grust || University of Tübingen, Germany
|'''Professional Prize'''|| Mike Powell
|-
|-
|rowspan=5|'''Phase II'''|| Fredrik Mattisson || Uppsala University, Sweden
|rowspan=5|'''Phase I'''||Armando Cruz || Universidad Nacional Autónoma de México, Mexico
|-
|-
|Joe Robertson || Durham University, U.K.
|Ivan Demianchuk || National Taras Shevchenko University of Kyiv, Ukraine
|-
|-
|Louis de Forcrand || Geneva University, Switzerland
|Yash Garg || Indian Institute of Technology, Delhi, India
|-
|-
|P R Vaidyanathan || Indian Institute of Technology Gandhinagar, India
|Arna Ghosh || Indian Institute of Technology, Kharagpur, India
|-
|-
|Rafael Rodrigues Rocha de Melo || Kyoto University, Japan
|Akarsh Ramesh Khatagalli || Visvesvaraya Technological University, India
|-
|-
|rowspan=10|'''Phase I'''||David Cao || University of California: San Diego, U.S.A.
|rowspan=10|'''Phase I'''||Aiken Cairncross || University of Oxford, UK
|-
|-
|Douglas Patz || Agile Learning Center, New York, U.S.A.
|Yu-Chi Chiang || National Central University, Taiwan
|-
|-
|Dzintars Klušs || Riga State Gynmasium No. 1, Latvia
|Anthony Cipriano || Gustav-Stresemann Gymnasium, Germany
|-
|-
|Fredrik Mattisson || Uppsala University, Sweden
|Ivan Demianchuk || National Taras Shevchenko University of Kyiv, Ukraine
|-
|-
|Louis de Forcrand || Geneva University, Switzerland
|Tripti Garg || NorthCap University, India
|-
|-
|Maksim Podkorytov || Florida State University, Florida, U.S.A.
|Arna Ghosh || Indian Institute of Technology, Kharagpur, India
|-
|-
|Mohammed Malik || Turku International School, Finland
|Bertil Johnson || University of Kentucky, USA
|-
|-
|P R Vaidyanathan || Indian Institute of Technology Gandhinagar, India
|Mohammed Malik || Copenhagen International School, Denmark
|-
|-
|Rasmus Précenth || Uppsala University, Sweden
|Douglas Patz || Agile Learning Center, New York, USA
|-
|-
|Zoe Kane || Greenville Technical College, South Carolina, U.S.A.
|Zachary Taylor || Maryville High School, USA
|}
|}


Line 92: Line 204:
|K C Unesh || Kathmand University, Nepal
|K C Unesh || Kathmand University, Nepal
|}
|}
==== Published solutions ====
* rak1507: [https://github.com/rak1507/Various-APL-Stuff/blob/master/Competitions/2018/Phase%201.dyalog Phase 1]


=== 2017 ===
=== 2019 ===
[https://www.dyalog.com/news/119/420/2017-APL-Programming-Contest-Winners.htm Article on dyalog.com]
 
[https://www.dyalog.com/news/134/420/2019-APL-Problem-Solving-Competition-Winners.htm Announcement]
 
[https://www.dyalog.com/news/136/420/2019-APL-Problem-Solving-Competition-Winners.htm About the winners]


{| class="wikitable"
{| class="wikitable"
|'''Grand Prize'''|| Kostas Blekos || Panepistimion Patron, Greece
|'''Grand Prize'''|| Jamin Wu || Monash University, Australia
|-
|'''2nd Place'''|| Rasmus Précenth || Uppsala University, Sweden
|-
|'''3rd Place'''|| Douglas Patz || Agile Learning Center, New York City, USA
|-
|'''Professional Prize'''|| Torsten Grust || University of Tübingen, Germany
|-
|rowspan=5|'''Phase II'''|| Fredrik Mattisson || Uppsala University, Sweden
|-
|Joe Robertson || Durham University, U.K.
|-
|Louis de Forcrand || Geneva University, Switzerland
|-
|P R Vaidyanathan || Indian Institute of Technology Gandhinagar, India
|-
|Rafael Rodrigues Rocha de Melo || Kyoto University, Japan
|-
|rowspan=10|'''Phase I'''||David Cao || University of California: San Diego, U.S.A.
|-
|Douglas Patz || Agile Learning Center, New York, U.S.A.
|-
|Dzintars Klušs || Riga State Gynmasium No. 1, Latvia
|-
|Fredrik Mattisson || Uppsala University, Sweden
|-
|Louis de Forcrand || Geneva University, Switzerland
|-
|Maksim Podkorytov || Florida State University, Florida, U.S.A.
|-
|Mohammed Malik || Turku International School, Finland
|-
|-
|'''2nd Place'''|| Douglas Patz || Agile Learning Center, New York City, USA
|P R Vaidyanathan || Indian Institute of Technology Gandhinagar, India
|-
|-
|'''3rd Place'''|| Zachary Taylor || Maryville High School, USA
|Rasmus Précenth || Uppsala University, Sweden
|-
|-
|'''Professional Prize'''|| Mike Powell
|Zoe Kane || Greenville Technical College, South Carolina, U.S.A.
|}
|}
==== Published solutions ====
* rak1507: [https://github.com/rak1507/Various-APL-Stuff/blob/master/Competitions/2019/Phase%201.dyalog Phase 1]
* Teggy: [https://github.com/Teggy/Dyalog-2019-APL-Competition Phases 1 + 2]


=== 2016 ===
=== 2020 ===
[https://www.dyalog.com/news/112/420/2016-APL-Programming-Contest-Winners.htm Article on dyalog.com]
[https://www.dyalog.com/news/142/420/2020-APL-Problem-Solving-Competition-Winners.htm Announcement]


This round of the competition offered 3 grand prizes, one each in the subject domains of finance, general computing and bioinformatics.
[https://www.dyalog.com/news/143/420/Meet-The-2020-APL-Problem-Solving-Competition-Winners.htm About the winners]


{| class="wikitable"
{| class="wikitable"
|'''Grand Prize (Finance)'''|| Janos (Zack) Batik || University of Cape Town, South Africa
|'''Grand Prize'''|| Andrii Makukha || University of Hong Kong, China
|-
|'''2nd Place'''|| Dzintars Klušs || Riga State Gymnasium No. 1, Latvia
|-
|'''3rd Place'''|| Joshua King || University of New South Wales, Australia
|-
|'''Professional Prize'''|| Woosuk Kwak || South Korea
|-
|rowspan=5|'''Phase II'''|| Brendan King || Rose-Hulman Institute of Technology, Indiana, U.S.A.
|-
| Federico Landonio || Liceo Scientifico GB Grassi Saronno, Italy
|-
| Iiro Tapio Rastas || University of Turku, Finland
|-
| Louis de Forcrand || Geneva University, Switzerland
|-
| Zoe Kane || Greenville Technical College, South Carolina, U.S.A.
|-
|rowspan=10|'''Phase I'''|| Chiang Yu-Chi || National Central University, Taiwan
|-
| Dzintars Klušs || Riga State Gymnasium No. 1, Latvia
|-
| Federico Landonio || Liceo Scientifico GB Grassi Saronno, Italy
|-
| Joel Niemelä || home schooling, Texas, U.S.A.
|-
| Joshua King || University of New South Wales, Australia
|-
|-
|'''Grand Prize (General Computing)'''|| Joshua (Josh) David || University of Scranton, USA
| Maksim Podkorytov || Florida State University, Florida, U.S.A.
|-
|-
|'''Grand Prize (Bioinformatics)'''|| Marinus Oosters || Universiteit Utrecht, The Netherlands
| Mattia Borgo || University of Padua, Italy
|-
|-
|'''Professional Prize'''|| Mike Powell
| Mohammed Malik || University of Pavia, Italy
|-
|-
|'''Runner-up (Finance)''' || Rafael Rodrigues || Fundação Getulio Vargas, Brazil
| Rafael Rodrigues Rocha de Melo || Kyoto University, Japan
|-
|-
|'''Runner-up (General Computing)''' || Imaculate Mosha || University of Cape Town, South Africa
| Zoe Kane || Greenville Technical College, South Carolina, U.S.A.
|-
|-
|'''Runner-up (Bioinformatics)''' || Louis de Forcrand || Ecole Moser, Switzerland
|}
|}
==== Published solutions ====
* rak1507: [https://github.com/rak1507/Various-APL-Stuff/blob/master/Competitions/2020/Phase%201.dyalog Phase 1], [https://github.com/rak1507/Various-APL-Stuff/blob/master/Competitions/2020/Phase%202.dyalog Phase 2]


=== 2015 ===
=== 2021 ===
[https://www.dyalog.com/news/102/420/2015-APL-Programming-Contest-Winners.htm Article on dyalog.com]
The 2021 round began on February 21 and closed on July 30.<ref>[[Dyalog Ltd.]] [https://www.dyalog.com/news/145/420/2021-APL-Problem-Solving-Competition-Announced-by-Dyalog-Ltd.htm 2021 APL Problem Solving Competition Announced by Dyalog Ltd]. News about Dyalog. Feb 12, 2021.</ref>
==== Winners ====
[https://www.dyalog.com/news/146/420/2021-APL-Problem-Solving-Competition-Winners.htm Announcement] and [https://www.dyalog.com/news/147/420/Meet-The-2021-APL-Problem-Solving-Competition-Winners.htm biographies].


{| class="wikitable"
{| class="wikitable"
|'''Grand Prize'''|| Arianna Locatelli || Liceo Classico S. M. Legnani, Saronno, Italy
|'''Grand Prize'''|| Dzintars Klušs || Riga State Gymnasium No. 1, Latvia
|-
|'''2nd Place'''|| Victor Ogunlokun || Obafemi Awolowo University, Nigeria
|-
|'''3rd Place'''|| Aaron Paterson || Quinnipiac University, Connecticut, U.S.A.
|-
|'''Special Recognition'''|| Mehdi Zribi || Liceo Scientifico GB Grassi Saronno, Italy
|-
|'''Professional Prize'''|| Julian Witte || Germany
|-
|rowspan=5|'''Phase II'''|| Alessandro Bassi || Liceo Scientifico GB Grassi Saronno, Italy
|-
| Rory Kemp || Edinburgh Academy, U.K.
|-
| Federico Landonio || Liceo Scientifico GB Grassi Saronno, Italy
|-
| Douglas Patz || home schooled, New York, U.S.A.
|-
| Qifan Wang || Auburn University, Alabama, U.S.A.
|-
|rowspan=10|'''Phase I'''|| Joseph Adams || Heinrich Heine University Düsseldorf, Germany
|-
| Mattia Borgo || University of Padua, Italy
|-
| Peter Mikkelsen || Aalborg University, Denmark
|-
| [[Raghu Ranganathan]] || SRM Institute of Science and Technology, India
|-
| Rafael Rodrigues Rocha de Melo || Kyoto University, Japan
|-
| Vladimir Sotirov || University of Wisconsin-Madison, Wisconsin, U.S.A.
|-
| Oskar von Seeler || Georg August University of Göttingen, Germany
|-
| Qifan Wang || Auburn University, Alabama, U.S.A.
|-
|-
|'''2nd Place'''|| Joshua (Josh) David || University of Scranton, USA
| Chiang Yu-Chi || National Taiwan University of Science and Technology, Taiwan
|-
|-
|'''3rd Place'''|| Dragana Babić || University of Novi Sad, Serbia
| Mehdi Zribi || Liceo Scientifico GB Grassi Saronno, Italy
|-
|-
|'''Professional Prize'''|| Roberto Szabó
|}
|}
==== Published solutions ====
* (anonymous): [https://tio.run/#%23JU89S8NAGN7zK7IlIUkvd7ZVhy46OLi5FoeC4FLwVmlcHEpy9qDiEEdJDXbrUMRS6NL8k/ePxOe9LsfxPt8TPU0fnifTp8eu0zKj@XJG8/cwJbuP8DmuyczJ/r54@tJhi0IcNyoVZHcykQnZtaLyS7SVuzHvArwc@ibMfNX3hxmZ5rg5gxmZOvL0OfCQih@hRoKKTypMLJIwFtJXvuKDLaMI1GTcG9zT4uDpISerPObQ4CoYcQ4MJD5bCILbAACaOPEuuAPD1J4enIKM5EG0MKr9Y1JZY9gHjJOx5ASUOgkz9sudtO@k1VvKhdoq6jtpW@HxNKYsyayA9GaoglZrlu5z18u8kv12Jop5dgtVWbvbisoGB0@j0RJrytrZyiwDpzA85eY66Lp/ Phase 1]
* dzaima: [https://dzaima.github.io/paste/#0LZC9TsMwFIX3PEU22yStY1PYssDAwNY3qMTCC7CkXQBFiRsjKoTSEdJWZOuAUCKkLvGb3CfhuGXxzzlH9373cpUkro6k66hsBBWGijW7uWYB2e852VZF0MluyWyCjFP@lqRkfxEaw/0RcmjJPOK1gBQHfOK6Ya8jqpdKoKRtXY0jyOjl/e7@gfJXRctnxDmZJnadIPNE1YHPqNxSZWCcjS@EnCFItk9SfqQwAEMH37/8kBqNe/xTdsUA/MWmt1NG5SckiV64MAVEtgjgyswfOpU8kipUZEuPHUfSVwR8sT6ikN35OaoDBGREMB9B4kmoJ@FlQmY37M@9la8EhqkKqeG3KNKr2G8p1h7N1XokT6i@FPaUr7A75a/q8L@qDVfpCRfTNz79Bw#APL Phase 1]
* LdBeth: [https://github.com/LdBeth/aplcomp2021 Phase 1]
* Mehdi Zribi: [https://github.com/Masterquiz/APL-Problem-Solving-Competition/tree/main/2021/Phase1 Phase 1], [https://github.com/Masterquiz/APL-Problem-Solving-Competition/tree/main/2021/Phase2 Phase 2]
* rak1507: [https://github.com/rak1507/Various-APL-Stuff/blob/master/Competitions/2021/Phase%201.dyalog Phase 1], [https://github.com/rak1507/Various-APL-Stuff/blob/master/Competitions/2021/Phase%202.dyalog Phase 2]
* [[User:Razetime|Razetime]]: [https://github.com/razetime/APLPSC21/tree/master/Phase-1 Phase 1], [https://github.com/razetime/APLPSC21/tree/master/Phase-2 Phase 2]
=== 2022 ===
The 2022 round began on March 22 and closed on July 29.<ref>Dyalog Ltd. [https://www.dyalog.com/news/150/420/2022-APL-Problem-Solving-Competition-Announced-by-Dyalog-Ltd.htm 2022 APL Problem Solving Competition Announced by Dyalog Ltd]. News about Dyalog. Mar 22, 2022.</ref>
==== Winners ====
[https://www.dyalog.com/news/151/420/2022-APL-Problem-Solving-Competition-Winners.htm Announcement] and [https://www.dyalog.com/news/152/420/Meet-The-2022-APL-Problem-Solving-Competition-Winners.htm biographies].


=== 2014 ===
[https://www.dyalog.com/news/94/420/2014-APL-Programming-Contest-Winners.htm Article on dyalog.com]
This was the first year in which a prize was offered to non-student entrants.
{| class="wikitable"
{| class="wikitable"
|'''Grand Prize'''|| Emil Bremer Orloff || Aarhus University, Denmark
|'''Grand Prize'''|| Tzu-Ching Lee || National Tsing Hua University, Taiwan
|-
|'''2nd Place'''|| Rory Kemp || Edinburgh Academy, U.K.
|-
|'''3rd Place'''|| Dzintars Klušs || Rīgas Tehniskā Universitāte (Riga Technical University), Latvia
|-
|'''Professional Prize'''|| Michael Higginson || Canada
|-
|rowspan=5|'''Phase II'''|| Brian Ellingsgaard || Klaksvik Technical School, Faroe Islands
|-
| Sergey Ichtchenko || University of Helsinki, Finland
|-
| Ajai Nelson || Oberlin College, Ohio, U.S.A.
|-
| Oskar von Seeler || Georg August University of Göttingen, Germany
|-
| Mehdi Zribi || Liceo Scientifico GB Grassi Saronno (GB Grassi Scientific High School in Saronno), Italy
|-
|rowspan=10|'''Phase I'''|| Mattia Borgo || University of Padua, Italy
|-
| Ronzoni Gabriele || Liceo Scientifico GB Grassi Saronno (GB Grassi Scientific High School in Saronno), Italy
|-
| Sergey Ichtchenko || University of Helsinki, Finland
|-
| Rory Kemp || Edinburgh Academy, U.K.
|-
| Dzintars Klušs || Riga Technical University, Latvia
|-
| Natanael Lundberg || Grillska gymnasiet Uppsala (Uppsala High School), Sweden
|-
| [[Raghu Ranganathan]] || SRM Institute of Science and Technology, India
|-
| Oskar von Seeler || Georg August University of Göttingen, Germany
|-
|-
|'''2nd Place'''|| Seán Kelleher || University College Cork, Ireland
| Kamila Szewczyk || I Liceum Ogólnokształcące (Warsaw High School), Poland
|-
|-
|'''3rd Place'''|| Chao Xu || University of Illinois, Urbana-Champaign, U.S.A
| Mehdi Zribi || Liceo Scientifico GB Grassi Saronno (GB Grassi Scientific High School in Saronno), Italy
|-
|-
|'''Professional Prize'''|| Iryna Pashenkovska
|}
|}


=== 2013 ===
==== Published solutions ====
[https://www.dyalog.com/news/83/420/2013-APL-Programming-Contest-winners.htm Article on dyalog.com]
* Stefan Kruger: [https://github.com/xpqz/dyalog2022 Phase 1 and 2]
* Peter Mikkelsen: [https://git.sr.ht/~pmikkelsen/dyalog-competition-2022 Phase 2]
* LdBeth: [https://ldbeth.sdf.org/aplcomp/2022/phase1.html Phase1], [https://ldbeth.sdf.org/aplcomp/2022/phase2.html Phase2]
* Akmy: [https://git.sr.ht/~akamayu-ouo/DyalogAPLContest/tree/master/item/2022 Phase 1 and 2]
 
=== 2023 ===
The 2023 round began on March 6 and closed on July 28.<ref>Dyalog Ltd. [https://www.dyalog.com/news/153/420/2023-APL-Problem-Solving-Competition-Announced-by-Dyalog-Ltd.htm 2023 APL Problem Solving Competition Announced by Dyalog Ltd]. News about Dyalog. Mar 6, 2023.</ref>
 
==== Winners ====
 
[https://www.dyalog.com/news/156/420/2023-APL-Problem-Solving-Competition-Winners.htm Announcement] and [https://www.dyalog.com/news/157/420/Meet-The-2023-APL-Problem-Solving-Competition-Winners.htm biographies].
 
{| class="wikitable"
{| class="wikitable"
|'''Grand Prize'''|| Yanqing Chen|| Stony Brook University, USA
|'''Grand Prize'''|| Andrea Piseri || Università degli Studi di Milano (University of Milan), Italy
|-
|'''2nd Place'''|| Rory Kemp || University of Oxford, U.K.
|-
|'''3rd Place'''|| Dzintars Klušs || Rīgas Tehniskā Universitāte (Riga Technical University), Latvia
|-
|'''Professional Prize'''|| Alexander Block ||
|-
|rowspan=5|'''Phase II'''|| Kamila Szewczyk || Universität des Saarlandes (Saarland University), Germany
|-
| Madeline Vergani || Liceo Statale Scientifico e Classico "E. Majorana", Desio (Scientific and Classical State High School “E. Majorana”), Italy
|-
| Daniel Vlasits || University of Cambridge, U.K.
|-
| Oskar von Seeler || Georg-August-Universität Göttingen (Georg August University of Göttingen), Germany
|-
|-
|'''2nd Place'''|| Maks Verver || The Netherlands
| Qifan Wang || Auburn University, Alabama, U.S.A.
|-
|-
|'''3rd Place'''|| Chao Xu || University of Illinois, Urbana-Champaign, USA
|rowspan=10|'''Phase I'''|| Brian Ellingsgaard || Tekniski Skúli í Klaksvík (Klaksvik Technical School), Faroe Islands
|-
|-
|}
| Mitchell Johnstone || Milwaukee School of Engineering, Wisconsin, U.S.A.
=== 2012 ===
[https://www.dyalog.com/news/72/420/4th-World-Wide-APL-Programming-Contest-Winner-Announced.htm Article on dyalog.com]
{| class="wikitable"
|'''Grand Prize'''|| Hayato Hashimoto || Kyoto University, Japan
|}
=== 2011 ===
[https://www.dyalog.com/news/59/420/Programming-Contest-Winners.htm Article on dyalog.com]
{| class="wikitable"
|'''Grand Prize'''|| Joel Hough || The University of Utah, USA
|-
|-
|'''2nd Place'''|| Yanqing Chen || Stony Brook University, New York, USA
| Federico Landonio || Università degli Studi di Milano (University of Milan), Italy
|-
|-
|'''3rd Place'''|| Elliot Way || Binghamton University, New York, USA
| Tzu-Ching Lee || National Tsing Hua University, Taiwan
|-
|-
|}
| Andrea Piseri || Università degli Studi di Milano (University of Milan), Italy
=== 2010 ===
[https://www.dyalog.com/news/34/420/Meet-the-winners-of-the-World-Wide-Programming-Competition-2010.htm Article on dyalog.com]
{| class="wikitable"
|'''Grand Prize'''|| Ryan Tarpine || Brown University, Providence, Rhode Island, USA.
|-
|-
|'''2nd Place'''|| Mstislav Elagin || Humboldt-Universität zu Berlin, Germany
| Gabriele Ronzoni || Università degli Studi di Milano (University of Milan), Italy
|-
|-
|'''3rd Place'''|| Joel Hough || Salt Lake Community College, Kaysville Utah, USA
| Kamila Szewczyk || Universität des Saarlandes (Saarland University), Germany
|-
|-
|}
| Madeline Vergani || Liceo Statale Scientifico e Classico "E. Majorana", Desio (Scientific and Classical State High School “E. Majorana”), Italy
=== 2009 ===
[https://www.dyalog.com/news/2/420/Dyalog-Announces-Winners-of-Worldwide-Computer-Programming-Contest.htm Article on dyalog.com]
{| class="wikitable"
|'''Grand Prize'''|| Ronald Chan || Auckland, New Zealand
|-
|-
|'''2nd Place'''|| Chris King || Brown University, Rhode Island USA
| Oskar von Seeler || Georg-August-Universität Göttingen (Georg August University of Göttingen), Germany
|-
|-
|'''3rd Place'''|| Maks Verver || The Netherlands
| Mehdi Zribi || Politecnico di Milano (Polytechnic University of Milan), Italy
|-
|-
|}
|}
Line 201: Line 463:
== References ==
== References ==
<references/>
<references/>
{{APL community}}
{{APL community}}[[Category:Competitions]]

Latest revision as of 18:28, 6 August 2024

The APL Problem Solving Competition was a yearly contest hosted by Dyalog Ltd. During the Dyalog user meeting that followed shortly after the competition closed, the winners were announced, followed by presentations by the grand prize winner and the professional prize winner. In 2024, the competition was replaced by the new APL Challenge and the new APL Forge.

The APL Quest is a series of chat events and follow-up videos addressing the Phase 1 problems of past years.

2009

Announcement and about the grand prize winner

Grand Prize Ronald Chan Auckland, New Zealand
2nd Place Chris King Brown University, Rhode Island USA
3rd Place Maks Verver The Netherlands

2010

About the winners

Grand Prize Ryan Tarpine Brown University, Providence, Rhode Island, USA.
2nd Place Mstislav Elagin Humboldt-Universität zu Berlin, Germany
3rd Place Joel Hough Salt Lake Community College, Kaysville Utah, USA
Special Effort Alexander Ivanov Moscow Institute for Physical Research

2011

About the winners

Grand Prize Joel Hough The University of Utah, USA
2nd Place Yanqing Chen Stony Brook University, New York, USA
3rd Place Elliot Way Binghamton University, New York, USA

2012

Announcement and about the winner

Grand Prize Hayato Hashimoto Kyoto University, Japan

2013

Announcement and about the winners

Grand Prize Yanqing Chen Stony Brook University, USA
2nd Place Maks Verver The Netherlands
3rd Place Chao Xu University of Illinois, Urbana-Champaign, USA

2014

Announcement

About the winners This was the first year in which a prize was offered to non-student entrants.

Grand Prize Emil Bremer Orloff Aarhus University, Denmark
2nd Place Seán Kelleher University College Cork, Ireland
3rd Place Chao Xu University of Illinois, Urbana-Champaign, U.S.A
Professional Prize Iryna Pashenkovska SimCorp Ukraine
Honourable mention Jan-Pieter Jacobs Universiteit Antwerpen, Belgium
Christopher Zhang State University of New York at Binghamton, U.S.A.

2015

Announcement

About the winners

Grand Prize Arianna Locatelli Liceo Classico S. M. Legnani, Saronno, Italy
2nd Place Joshua (Josh) David University of Scranton, USA
3rd Place Dragana Babić University of Novi Sad, Serbia
Professional Prize Roberto Szabó
Honourable mention Alexander Kuhnle Cambridge University, U.K.
Luyang Du State University of New York at Binghamton, U.S.A.

2016

Announcement

About the winners

This round of the competition offered 3 grand prizes, one each in the subject domains of finance, general computing and bioinformatics.

Grand Prize (Finance) Janos (Zack) Batik University of Cape Town, South Africa
Grand Prize (General Computing) Joshua (Josh) David University of Scranton, USA
Grand Prize (Bioinformatics) Marinus Oosters Universiteit Utrecht, The Netherlands
Professional Prize Mike Powell
Runner-up (Finance) Rafael Rodrigues Fundação Getulio Vargas, Brazil
Runner-up (General Computing) Imaculate Mosha University of Cape Town, South Africa
Runner-up (Bioinformatics) Louis de Forcrand Ecole Moser, Switzerland

2017

Announcement

About the winners

Grand Prize Kostas Blekos Panepistimion Patron, Greece
2nd Place Douglas Patz Agile Learning Center, New York City, USA
3rd Place Zachary Taylor Maryville High School, USA
Professional Prize Mike Powell
Phase I Armando Cruz Universidad Nacional Autónoma de México, Mexico
Ivan Demianchuk National Taras Shevchenko University of Kyiv, Ukraine
Yash Garg Indian Institute of Technology, Delhi, India
Arna Ghosh Indian Institute of Technology, Kharagpur, India
Akarsh Ramesh Khatagalli Visvesvaraya Technological University, India
Phase I Aiken Cairncross University of Oxford, UK
Yu-Chi Chiang National Central University, Taiwan
Anthony Cipriano Gustav-Stresemann Gymnasium, Germany
Ivan Demianchuk National Taras Shevchenko University of Kyiv, Ukraine
Tripti Garg NorthCap University, India
Arna Ghosh Indian Institute of Technology, Kharagpur, India
Bertil Johnson University of Kentucky, USA
Mohammed Malik Copenhagen International School, Denmark
Douglas Patz Agile Learning Center, New York, USA
Zachary Taylor Maryville High School, USA

2018

Announcement

About the winners

Grand Prize Alve Björk Uppsala University, Sweden
2nd Place Lynn Van Hauwe University of Antwerp, Belgium
3rd Place Rafael Rodrigues Rocha de Melo Kyoto University, Japan
Professional Prize Tiziano Berghi SimCorp Italiana
Phase II Dinesh Poudel Jaya Multiple Campus, Nepal
Douglas Patz Agile Learning Center, New York, U.S.A.
Joe Robertson St. Peter's High School, Gloucester, U.K.
K C Unesh Kathmand University, Nepal
P R Vaidyanathan Indian Institute of Technology Gandhinagar, India
Phase I Alejandra González Universidad Technológica Nacional – Instituto Nacional Superior del Profesorado Técnico, Argentina
Dimitri Lozeve University of Oxford, U.K.
Dinesh Poudel Jaya Multiple Campus, Nepal
Douglas Patz Agile Learning Center, New York, U.S.A.
Du Xi Australian National University, Australia
Lynn Van Hauwe University of Antwerp, Belgium
Mohammed Malik Turku International School, Finland
P R Vaidyanathan Indian Institute of Technology Gandhinagar, India
Rafael Rodrigues Rocha de Melo Kyoto University, Japan
K C Unesh Kathmand University, Nepal

Published solutions

2019

Announcement

About the winners

Grand Prize Jamin Wu Monash University, Australia
2nd Place Rasmus Précenth Uppsala University, Sweden
3rd Place Douglas Patz Agile Learning Center, New York City, USA
Professional Prize Torsten Grust University of Tübingen, Germany
Phase II Fredrik Mattisson Uppsala University, Sweden
Joe Robertson Durham University, U.K.
Louis de Forcrand Geneva University, Switzerland
P R Vaidyanathan Indian Institute of Technology Gandhinagar, India
Rafael Rodrigues Rocha de Melo Kyoto University, Japan
Phase I David Cao University of California: San Diego, U.S.A.
Douglas Patz Agile Learning Center, New York, U.S.A.
Dzintars Klušs Riga State Gynmasium No. 1, Latvia
Fredrik Mattisson Uppsala University, Sweden
Louis de Forcrand Geneva University, Switzerland
Maksim Podkorytov Florida State University, Florida, U.S.A.
Mohammed Malik Turku International School, Finland
P R Vaidyanathan Indian Institute of Technology Gandhinagar, India
Rasmus Précenth Uppsala University, Sweden
Zoe Kane Greenville Technical College, South Carolina, U.S.A.

Published solutions

2020

Announcement

About the winners

Grand Prize Andrii Makukha University of Hong Kong, China
2nd Place Dzintars Klušs Riga State Gymnasium No. 1, Latvia
3rd Place Joshua King University of New South Wales, Australia
Professional Prize Woosuk Kwak South Korea
Phase II Brendan King Rose-Hulman Institute of Technology, Indiana, U.S.A.
Federico Landonio Liceo Scientifico GB Grassi Saronno, Italy
Iiro Tapio Rastas University of Turku, Finland
Louis de Forcrand Geneva University, Switzerland
Zoe Kane Greenville Technical College, South Carolina, U.S.A.
Phase I Chiang Yu-Chi National Central University, Taiwan
Dzintars Klušs Riga State Gymnasium No. 1, Latvia
Federico Landonio Liceo Scientifico GB Grassi Saronno, Italy
Joel Niemelä home schooling, Texas, U.S.A.
Joshua King University of New South Wales, Australia
Maksim Podkorytov Florida State University, Florida, U.S.A.
Mattia Borgo University of Padua, Italy
Mohammed Malik University of Pavia, Italy
Rafael Rodrigues Rocha de Melo Kyoto University, Japan
Zoe Kane Greenville Technical College, South Carolina, U.S.A.

Published solutions

2021

The 2021 round began on February 21 and closed on July 30.[1]

Winners

Announcement and biographies.

Grand Prize Dzintars Klušs Riga State Gymnasium No. 1, Latvia
2nd Place Victor Ogunlokun Obafemi Awolowo University, Nigeria
3rd Place Aaron Paterson Quinnipiac University, Connecticut, U.S.A.
Special Recognition Mehdi Zribi Liceo Scientifico GB Grassi Saronno, Italy
Professional Prize Julian Witte Germany
Phase II Alessandro Bassi Liceo Scientifico GB Grassi Saronno, Italy
Rory Kemp Edinburgh Academy, U.K.
Federico Landonio Liceo Scientifico GB Grassi Saronno, Italy
Douglas Patz home schooled, New York, U.S.A.
Qifan Wang Auburn University, Alabama, U.S.A.
Phase I Joseph Adams Heinrich Heine University Düsseldorf, Germany
Mattia Borgo University of Padua, Italy
Peter Mikkelsen Aalborg University, Denmark
Raghu Ranganathan SRM Institute of Science and Technology, India
Rafael Rodrigues Rocha de Melo Kyoto University, Japan
Vladimir Sotirov University of Wisconsin-Madison, Wisconsin, U.S.A.
Oskar von Seeler Georg August University of Göttingen, Germany
Qifan Wang Auburn University, Alabama, U.S.A.
Chiang Yu-Chi National Taiwan University of Science and Technology, Taiwan
Mehdi Zribi Liceo Scientifico GB Grassi Saronno, Italy

Published solutions

2022

The 2022 round began on March 22 and closed on July 29.[2]

Winners

Announcement and biographies.

Grand Prize Tzu-Ching Lee National Tsing Hua University, Taiwan
2nd Place Rory Kemp Edinburgh Academy, U.K.
3rd Place Dzintars Klušs Rīgas Tehniskā Universitāte (Riga Technical University), Latvia
Professional Prize Michael Higginson Canada
Phase II Brian Ellingsgaard Klaksvik Technical School, Faroe Islands
Sergey Ichtchenko University of Helsinki, Finland
Ajai Nelson Oberlin College, Ohio, U.S.A.
Oskar von Seeler Georg August University of Göttingen, Germany
Mehdi Zribi Liceo Scientifico GB Grassi Saronno (GB Grassi Scientific High School in Saronno), Italy
Phase I Mattia Borgo University of Padua, Italy
Ronzoni Gabriele Liceo Scientifico GB Grassi Saronno (GB Grassi Scientific High School in Saronno), Italy
Sergey Ichtchenko University of Helsinki, Finland
Rory Kemp Edinburgh Academy, U.K.
Dzintars Klušs Riga Technical University, Latvia
Natanael Lundberg Grillska gymnasiet Uppsala (Uppsala High School), Sweden
Raghu Ranganathan SRM Institute of Science and Technology, India
Oskar von Seeler Georg August University of Göttingen, Germany
Kamila Szewczyk I Liceum Ogólnokształcące (Warsaw High School), Poland
Mehdi Zribi Liceo Scientifico GB Grassi Saronno (GB Grassi Scientific High School in Saronno), Italy

Published solutions

2023

The 2023 round began on March 6 and closed on July 28.[3]

Winners

Announcement and biographies.

Grand Prize Andrea Piseri Università degli Studi di Milano (University of Milan), Italy
2nd Place Rory Kemp University of Oxford, U.K.
3rd Place Dzintars Klušs Rīgas Tehniskā Universitāte (Riga Technical University), Latvia
Professional Prize Alexander Block
Phase II Kamila Szewczyk Universität des Saarlandes (Saarland University), Germany
Madeline Vergani Liceo Statale Scientifico e Classico "E. Majorana", Desio (Scientific and Classical State High School “E. Majorana”), Italy
Daniel Vlasits University of Cambridge, U.K.
Oskar von Seeler Georg-August-Universität Göttingen (Georg August University of Göttingen), Germany
Qifan Wang Auburn University, Alabama, U.S.A.
Phase I Brian Ellingsgaard Tekniski Skúli í Klaksvík (Klaksvik Technical School), Faroe Islands
Mitchell Johnstone Milwaukee School of Engineering, Wisconsin, U.S.A.
Federico Landonio Università degli Studi di Milano (University of Milan), Italy
Tzu-Ching Lee National Tsing Hua University, Taiwan
Andrea Piseri Università degli Studi di Milano (University of Milan), Italy
Gabriele Ronzoni Università degli Studi di Milano (University of Milan), Italy
Kamila Szewczyk Universität des Saarlandes (Saarland University), Germany
Madeline Vergani Liceo Statale Scientifico e Classico "E. Majorana", Desio (Scientific and Classical State High School “E. Majorana”), Italy
Oskar von Seeler Georg-August-Universität Göttingen (Georg August University of Göttingen), Germany
Mehdi Zribi Politecnico di Milano (Polytechnic University of Milan), Italy

References

  1. ↑ Dyalog Ltd. 2021 APL Problem Solving Competition Announced by Dyalog Ltd. News about Dyalog. Feb 12, 2021.
  2. ↑ Dyalog Ltd. 2022 APL Problem Solving Competition Announced by Dyalog Ltd. News about Dyalog. Mar 22, 2022.
  3. ↑ Dyalog Ltd. 2023 APL Problem Solving Competition Announced by Dyalog Ltd. News about Dyalog. Mar 6, 2023.
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