We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Practice
  2. Functional Programming
  3. Recursion
  4. String Mingling
  5. Discussions

String Mingling

  • ronagrawal + 2 comments

    Scala does tail recursion optimisation at compile-time and the recursive function is transformed into a loop by the compiler I was wondering why the following solution says "Run Time Error"

    @tailrec
def mingle(p : String, q : String, acc : String = "" ) : String = {
if(p.isEmpty) acc
else  mingle(p.tail,q.tail,acc+p.head+q.head)

    }

    Is it because of same reason ?

    • ranjithrajd + 0 comments

      use StringBuilder for concat operation in scala

    • srakshit + 0 comments

      code is working fine in my terminal. I feel you missed to import. import scala.annotation.tailrec