package examples;

object sort1 {

  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))
  }

}