sources/examples/sort1.scala


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object sorter {

  def sort(a: List[Int]): List[Int] = {
    if (a.length < 2)
      a
    else {
      val pivot = a(a.length / 2);
      sort(a.filter(x => x < pivot))
        ::: a.filter(x => x == pivot)
        ::: sort(a.filter(x => x > pivot))
    }
  }

  def main(args: Array[String]) = {
    val xs = List(6, 2, 8, 5, 1);
    Console.println(xs);
    Console.println(sort(xs));
  }

}