def deconstructList(xs: List[Int]): List[Int] = xs match
case Nil => Nil
// Deconstruct a list into head and tail using the cons :: operator.
// Then, reverse order by concatenating head to tail.
case y :: ys => deconstructList(ys) ++ List(y)
deconstructList(List(1, 2, 3, 4))
// res0: List[Int] = List(4, 3, 2, 1)
As we continue our collective programming journey, building on the foundation of intermediate programming, we’re ready to venture into…