gistfile1.scala

package pl.japila.scalania.s99

object S99_P17 {
  def split[T](n: Int, ts: Seq[T]): (Seq[T], Seq[T]) =
    {
      val tsWithIndexes = ts.zipWithIndex
      def filterPairValue(p: ((T, Int)) => Boolean): Seq[T] = for (x <- tsWithIndexes if p(x)) yield x._1
      val first = filterPairValue(_._2 < n)
      val second = filterPairValue(_._2 >= n)
      (first, second)
    }

}