N-Queens Combinatorial Problem - Polyglot FP for Fun and Profit – Haskell and Scala - Part 2

Published: 01 Aug 2021

Uploaded: 03 Dec 2023

Number of slides: 58

Description: view

Slideshow: view - 1,027 views

All slides : view

Download: pdf (for a perfect viewing experience - see the slides as they are meant to be seen)

Speakerdeck: slideshow - 257 views - uploaded 23 Jul 2023

Slideshare: slideshow - 770 views - uploaded 01 Aug 2021

1027

237

	57		57		60

See how the guard function has migrated from MonadPlus to Alternative and learn something about the latter.
Learn how to write a Scala program that draws an N-Queens solution board using the Doodle graphics library.
See how to write the equivalent Haskell program using the Gloss graphics library.
Learn how to use Monoid and Foldable to compose images both in Haskell and in Scala.
Erratum on slide 22: the last line of the showQueens function should of course be show(solution).draw(frame) rather than show(solution).draw
Erratum on slide 43: it would be better if the definitions of the beside, above and on Monoids were also shown.