Re: Rosetta PGA-TRAM

[Arunbear]

in reply to Rosetta PGA-TRAM

A Scala version (basically similar in form to the Perl/Python versions):

val rtoa = Map('M' -> 1000, 'D' -> 500, 'C' -> 100, 'L' -> 50, 'X' -> 
+10, 'V' -> 5, 'I' -> 1)

def romanToDec(roman: String) : Int =
  roman.map((c) => rtoa(c.toUpperCase)).reduceLeft((x, y) => x + y - x
+ % y * 2)

val testData = List("XLII", "LXIX", "mi")
for(r <- testData)
  println(r + ": " + romanToDec(r))