[Solved] Einstein’s puzzle in Scala [duplicate]

by 


  val houses = List(1, 2, 3, 4, 5)
  val orderings = houses.permutations.toList
  val List(first, _, middle, _, _) = houses

  def imright(h1: Int, h2: Int) = h1 - h2 == 1

  def nextto(h1: Int, h2: Int) = math.abs(h1 - h2) == 1

  for (List(red, green, ivory, yellow, blue) <- orderings if imright(green, ivory))
    for(List(englishman, spaniard, ukranian, japanese, norwegian) <- orderings
      if (englishman == red)
    ) println(Map(
      "englishman" -> englishman
      ,"red" -> red
      ,"norwegian" -> norwegian
      ,"first" -> first
    ))

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solved Einstein’s puzzle in Scala [duplicate]