gistfile1.txt

list.sum

(a zip b).map(_.productIterator).flatten

def fib100 = {
  def fib(x: BigInt, y: BigInt): Stream[BigInt] = {
    val z = x + y
    z #:: fib(y, z)
  }
  (0 #:: 1 #:: fib(0, 1)).take(100).toList
}

def concatMax(list: List[Int]) = {
  list.permutations.map {
    _.map(_.toString).reduce(_ + _)
  }.map(_.toInt).max
}