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APL Problem Solving Competition (view source)

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The '''APL Problem Solving Competition''' is a yearly contest hosted by [[Dyalog Ltd.]] During the [[Dyalog user meeting]] that follows shortly after the competition closes, the winners are announced, followed by presentations by the grand prize winner and the professional prize winner.
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]].
 
The [[APL Quest]] is a series of chat events and follow-up videos addressing the Phase 1 problems of past years.


=== 2009 ===
=== 2009 ===
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==== Published solutions ====
==== Published solutions ====
* rak1507: [https://github.com/rak1507/Various-APL-Stuff/blob/master/Competitions/2019/Phase%201.dyalog Phase 1]
* 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]


=== 2020 ===
=== 2020 ===
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=== 2021 ===
=== 2021 ===
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>
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"
|'''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.
|-
| Chiang Yu-Chi || National Taiwan University of Science and Technology, Taiwan
|-
| Mehdi Zribi || Liceo Scientifico GB Grassi Saronno, Italy
|-
|}
==== Published solutions ====
==== 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]
* 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]
* 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].
{| class="wikitable"
|'''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
|-
| 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 ====
* 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>


== External links ==
==== Winners ====
* [https://www.dyalog.com/student-competition.htm Dyalog]
 
[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"
|'''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
|-
| Qifan Wang || Auburn University, Alabama, U.S.A.
|-
|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.
|-
| 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
|-
|}


* [https://www.dyalogaplcompetition.com/ Competition website]
== References ==
== References ==
<references/>
<references/>
{{APL community}}[[Category:Recreation]]
{{APL community}}[[Category:Recreation]]
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