SendMoreMoney.scala

SendMoreMoney.scala

object SendMoreMoney {
  def int(xs : Int*) : Int =
    xs.foldLeft(0)( _ * 10 + _)

  def solve : Seq[(Int, Int,Int)] = {
    val digits = 0 to 9
    for {
      s <- digits
      e <- digits diff List(s)
      n <- digits diff List(s, e)
      d <- digits diff List(s, e, n)
      m <- digits diff List(s, e, n, d)
      o <- digits diff List(s, e, n, d, m)
      r <- digits diff List(s, e, n, d, m, o)
      y <- digits diff List(s, e, n, d, m, o, r)
      if s != 0 && m != 0 && int(s, e, n, d) + int(m, o, r, e) == int(m, o, n, e, y)
    } yield (int(s, e, n, d) , int(m, o, r, e) , int(m, o, n, e, y))
  }

  def main(args : Array[String]) {
    println(solve)
  }
}

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