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  1. object Main {
  2.  
  3.   def toggledPartition[A](xs: List[A])(p: A => Boolean): List[List[A]] =
  4.     if (xs.isEmpty) Nil
  5.     else xs span p match { case (a,b) => a :: toggledPartition(b)(x => !p(x)) }
  6.  
  7.   def main(args: Array[String]) {
  8.     println(toggledPartition(List(1, 2, 3, 4, 5, 6, 5, 4, 3, 2, 1, 2, 3, 4))(x => x < 4))
  9.   }
  10. }
Success #stdin #stdout 0.28s 247488KB
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Standard input is empty
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List(List(1, 2, 3), List(4, 5, 6, 5, 4), List(3, 2, 1, 2, 3), List(4))
https://ideone.com/HBrOv
language:
Scala (scala 2.12.8)
created:
13 years ago
visibility:
public

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