Hackerrank Halloween party in Scala

Halloween party.scala

object Solution {
  def main(args: Array[String]) {
    val lines = io.Source.stdin.getLines().filter(_.length > 0).drop(1)
	val nums = lines.map(_.toLong)
	nums.foreach( n => println( (n /2) * ( n - n /2)  ))
  }
}