APL Quest

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APL Quest is the title used for a series of short live chat sessions held by Adám Brudzewsky with guest appearances by Richard Park. The sessions run on Fridays at 15:00 UTC. Each session focuses on one problem from Phase 1 of a past APL Problem Solving Competition, beginning with problem 1 from the 2013 round, and is followed up by publication of the code[1] and a video that summarises the solutions.[2]

Still frame from a follow-up video.

APL Quest events happen in the APL Orchard, and requires a Stack Exchange account:

The Stack Exchange chat system allows signing up for reminders to these recurring events.[3]

Sessions

Problems from 2013

Problem Title Chat Code Video*
1 Seems a Bit Odd To Me Feb 4, 2022 2013/1.apl 00:10:31
2 Making The Grade Feb 11, 2022 2013/2.apl 00:15:03
3 What Is In a Word Feb 18, 2022 2013/3.apl 00:21:18
4 Keeping Things In Balance Feb 25, 2022 2013/4.apl 00:34:35
5 Identity Crisis Mar 4, 2022 2013/5.apl 00:25:05
6 Home On The Range Mar 11, 2022 2013/6.apl 00:19:48
7 Float Your Boat Mar 18, 2022 2013/7.apl 00:22:50
8 Go Forth And Multiply Mar 25, 2022 2013/8.apl 00:19:42
9 It Is a Moving Experience Apr 1, 2022 2013/9.apl 00:15:12
10 Solution Salvation Apr 8, 2022 2013/10.apl 00:24:01
* All videos are also available as a single playlist.

Problems from 2014

Problem Title Chat Code Video*
1 It Is All Right Apr 15, 2022 2014/1.apl 00:18:13
2 How Tweet It Is Apr 22, 2022 2014/2.apl 00:29:50
3 Tell a Fib Apr 29, 2022 2014/3.apl 00:30:45
4 Space The Final Frontier May 6, 2022 2014/4.apl 00:52:55
5 Mirror Mirror May 13, 2022 2014/5.apl 00:16:31
6 Roll The Dice May 20, 2022 2014/6.apl 00:10:55
7 Revolutionary Thinking May 27, 2022 2014/7.apl 00:15:56
8 Go The Distance Jun 3, 2022 2014/8.apl 00:07:59
9 Going Ballistic Jun 10, 2022 2014/9.apl 00:08:27
10 Sales Are Up Jun 17, 2022 2014/10.apl 00:10:59
* All videos are also available as a single playlist.

Problems from 2015

Problem Title Chat Code Video*
1 Nag A Ram Jun 23, 2022 2015/1.apl 00:16:22
2 Longest Streak Jul 1, 2022 2015/2.apl 00:14:49
3 Farey Tale Jul 8, 2022 2015/3.apl 00:31:35
4 PDI - Progressive Dyadic Iota Jul 15, 2022 2015/4.apl 00:35:10
5 He’s so mean, he has no standard deviation Jul 22, 2022 2015/5.apl 00:07:47
6 Hey! This is My Space Jul 29, 2022 2015/6.apl 00:24:00
7 Just in (Upper) Case Aug 5, 2022 2015/7.apl 00:05:50
8 Unlucky 13 Aug 12, 2022 2015/8.apl 00:13:47
9 I’d Like Mine Scrambled Please Aug 19, 2022 2015/9.apl 00:23:31
10 Blaise’ing a Trail Aug 26, 2022 2015/10.apl 00:16:46
* All videos are also available as a single playlist.

Problems from 2016

Problem Title Chat Code Video*
1 Statistics - Mean Sep 2, 2022 2016/1.apl 00:17:48
2 Statistics - Median Sep, 9, 2022 2016/2.apl 00:23:22
3 Statistics - Mode Sep, 16, 2022 2016/3.apl 00:26:36
4 Just Meshing Around Sep, 23, 2022 2016/4.apl 00:12:07
5 You’re Unique, Just Like Everyone Else Sep, 30, 2022 2016/5.apl 00:13:36
6 Shorter Ones to the Front Oct, 7, 2022 2016/6.apl 00:04:19
7 3s and 5s Oct, 14, 2022 2016/7.apl 00:06:28
8 Separating Out the Negative Oct, 21, 2022 2016/8.apl 00:07:16
9 Delimited Text Oct, 28, 2022 2016/9.apl 00:06:51
10 Order Total Nov, 4, 2022 2016/10.apl 00:06:43
* All videos are also available as a single playlist.

Problems from 2017

Problem Title Chat Code Video*
1 What an Odd Bunch Nov 11, 2022 2017/1.apl 00:03:10
2 Good Evening Nov 18, 2022 2017/2.apl 00:04:56
3 Miss Quoted Nov 25, 2022 2017/3.apl 00:17:04
4 Slice(s) of Pie(s) Dec 2, 2022 2017/4.apl 00:12:35
5 DNA? Dec 9, 2022 2017/5.apl 00:03:54
6 k-mers Dec 16, 2022 2017/6.apl 00:08:54
7 Counting DNA Nucleotides Dec 23, 2022 2017/7.apl 00:06:53
8 Be the First 1 Dec 30, 2022 2017/8.apl 00:14:10
9 Double Trouble Jan 6, 2023 2017/9.apl 00:10:35
10 Squaring Off Jan 13, 2023 2017/10.apl 00:05:38
* All videos are also available as a single playlist.

Problems from 2018

Problem Title Chat Code Video*
1 Oh Say Can You See Jan 20, 2023 2018/1.apl 00:13:48
2 Number Splitting Jan 27, 2023 2018/2.apl 00:06:16
3 Rolling Along Feb 3, 2023 2018/3.apl 00:13:03
4 Whats Your Sign Feb 10, 2023 2018/4.apl 00:13:40
5 Whats Your Sign Revisited Feb 17, 2023 2018/5.apl 00:15:18
6 Whats Your Angle Feb 24, 2023 2018/6.apl 00:07:09
7 Unconditionally Shifty Mar 3, 2023 2018/7.apl 00:07:45
8 Making a Good Argument Mar 10, 2023 2018/8.apl 00:12:41
9 Earlier Later or the Same Mar 17, 2023 2018/9.apl 00:05:29
10 Anagrammatically Correct Mar 24, 2023 2018/10.apl 00:03:12
* All videos are also available as a single playlist.

Problems from 2019

Problem Title Chat Code Video*
1 Chunky Monkey Mar 31, 2023 2019/1.apl 00:05:32
2 Making the Grade Apr 7, 2023 2019/2.apl 00:03:27
3 Grade Distribution Apr 14, 2023 2019/3.apl 00:09:00
4 Knight Moves Apr 21, 2023 2019/4.apl 00:06:37
5 Doubling Up Apr 28, 2023 2019/5.apl 00:05:01
6 Telephone Names May 5, 2023 2019/6.apl 00:08:23
7 In the Center of It All May 12, 2023 2019/7.apl 00:06:56
8 Going the Distance May 19, 2023 2019/8.apl 00:15:47
* All videos are also available as a single playlist.


References

  1. ↑ Adám Brudzewsky. apl_quest code repository. GitHub.
  2. ↑ Adám Brudzewsky. APL Quest playlist. YouTube.
  3. ↑ The APL Orchard. APL Quest. Room schedule. Stack Exchange.
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