stanch · January 31, 2016 21:48
diff --git a/Roman.scala b/Roman.scala
 val l2d = Map('i' -> 1, 'v' -> 5, 'x' -> 10, 'l' -> 50, 'c' -> 100)

 def compute(ds: Seq[Int]) = ds.foldRight((0, 0)) {
  case (d, (acc, last)) => if (d < last) (acc - d, last) else (acc + d, d)
 }

 def roman(numeral: String) = compute(numeral map l2d)._1
	val l2d = Map('i' -> 1, 'v' -> 5, 'x' -> 10, 'l' -> 50, 'c' -> 100)

	def compute(ds: Seq[Int]) = ds.foldRight((0, 0)) {
	case (d, (acc, last)) => if (d < last) (acc - d, last) else (acc + d, d)
	}

	def roman(numeral: String) = compute(numeral map l2d)._1