List#sort List(1, 3, 2).sort(_ < _) // List(1, 2, 3) class List in scala - Scala Library Sorting.stableSort import scala.util.Sorting val ar = Array(1, 3, 2) Sorting.stableSort(ar) ar // Array(1, 2, 3) Sorting.stableSort(ar, (a: Int, b: In…