Weighted ranking of athletes

weighted_rank.scala

// cf http://cs.stackexchange.com/q/54253/98
// Runnable version: http://ideone.com/4GyKeB

class Athlete(val name: String, val endurance : Int, val speed : Int) {
	def performance(p : Double) = {
		p * endurance / Athlete.maxEndurance + (1-p) * speed / Athlete.maxSpeed
	}
	
	override def toString = name
}

object Athlete {
	val maxEndurance = 64
	val maxSpeed = 12
	
	def apply(name : String, endurance : Int, speed : Int) = new Athlete(name, endurance, speed)
}

object Main extends App {
	// your code goes here
	val input = Seq(
		Athlete("A", 10, 60),
		Athlete("B", 12, 59),
		Athlete("C", 6, 64)
	)
	
	println(rank(0.6)(input))
	
	def rank(p : Double)(athletes : Seq[Athlete]) = {
		athletes.sortBy(_.performance(p))
	}
}