mateuszmrozewski

object S99_P19 {
  def rotate[T](n: Int, ts: Seq[T]): Seq[T] = (n, ts) match {
    case (_, Nil) => Nil
    case (0, seq) => seq
    case (x, seq) => rotate(x - 1, seq.last +: seq take seq.length - 1)
  }
}