Hackerrank – Update List

19. October 2015 Pavol PidaničComments are off for this post.

Problem Statement
A description of the problem can be found on Hackerrank.

Solution

object UpdateList extends App {
  def f(arr: List[Int]): List[Int] = 
    if (arr.isEmpty) Nil else arr.head.abs :: f(arr.tail)
}

object UpdateList extends App {

def f(arr: List[Int]): List[Int] =

if (arr.isEmpty) Nil else arr.head.abs :: f(arr.tail)

}

Solution also available on my GitHub.