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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''' 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 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]
* 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]
* [[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 will close 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 ==
== External links ==
* [https://www.dyalog.com/student-competition.htm Dyalog]
* [https://www.dyalog.com/student-competition.htm Dyalog]


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