gistfile1.txt

class EnoughParticipantsMonteCarlo extends EnoughParticipants {

  override def calculate(probabilities: List[Double], needed: Int): Double = {
    (1 to attempts).par.map(i => probabilities.map(p => dice(p)).sum).count(successful => successful >= needed) / attempts.toDouble
  }

  val Precision = 0.001

  val attempts = Math.ceil(Math.pow(1 / Precision, 2)).toInt

  def dice(probability: Double) = if (ThreadLocalRandom.current().nextDouble() < probability) 1 else 0
}