January 2021 1HaskellADay 1Liners

• 2021-01-28: Opposite problem:
  You have: [(a, Set b)]
  you want: [(a, b)]
  e.g.:  [("hi", fromList [1,2,3]), ("bye", fromList [4,6,7]) ->
  [("hi",1),("hi",2),("hi",3),("bye",4),("bye",6),("bye",7)]
  Interestingly, Set is not a Monad. wut. How do you get around that problem?
• D Oisín Kidney @oisdk (>>= traverse toList)
• mine: concatMap (sequence . second Set.toList)
• 2021-01-28: 
  We have [(Set a, b)]
  we want [(a, b)] 
  where each element of Set a is paired with b, e.g.:
  [(fromList [1,2,3], 'a'), (fromList [4,5,6], 'b')]
  becomes
  [(1,'a'),(2,'a'),(3,'a'),(4,'b'),(5,'b'),(6,'b')]
• Steve "wash your hands" Trout @strout:
  concatMap (uncurry (liftA2 (,)) . bimap toList pure)
• insatiable mask wearer @tim_1729
  [(a,b) | (s,b) <- xs, a <- (toList s)]
• Today, 2021/01/21, is:
1. Can be written with only 3 digits, What other dates can be so written? Also:
2. a day where the month and day are NOT amalgamation the year. But which dates are amalgamations?

January 2021 1HaskellADay Problems and Solutions

• 2021-01-29: Ambitious! Let's upload some indexed wineries with geo-locations to the graph-store for today's #haskell problem! For today's #haskell solution we added geo-locations and wikidata QNames for some wineries, with shout-outs to @oisdk and @tim_1729, incorporating their #1Liner answers into the solution. 
• 2021-01-27: We continue updating our wine-graph with wikidata. Today we update countries in the graph with wikidata QName values. Today's #haskell solution corrects the names of the countries and adds their wikidata QNames, or, put another way: O? Canada?!? NANI??? 
  
  
  
• 2021-01-26: For today's #haskell problem we compare neo4j graph data to wikidata for wineries now, and what is the "No Country"? And how do I get citizenship there? 
• 2021-01-25: Okay, looking at countries aliased between wikidata and a neo4j graph for today's #haskell problem. Today's #haskell solution loads then uses a graph to resolve aliased country names. 
• 2021-01-22: Today's #haskell problem: we inject countries of wineries extracted from @wikidata into the mix to ... simplify (?) things? ... wait? There're countries mismatched, too? How ... surprising. 🙄 Today's #haskell solution shows us that wine is "No Country" for old men. ... wait ... wut? 
• 2021-01-21: Today's #haskell problem is to compare wineries from @wikidata to those in a @neo4j graph. Also. Did you know that there's a winery in Oregon named "Sweet Cheeks"? Now you do. You're welcome. Today's #haskell solution shows that 125 wineries match, more than 400 don't. Lots of aliasing work ahead of us. 
  
  
  
• 2021-01-20: Today's #haskell problem asks you to parse wineries and their geo-locations from a JSON file. Simple problem; simple solution. Also: wine a bit. It helps.