Contents

object Prime {
  // The stream will cache calculated primes. This is nice for performance,
  // but not so nice for memory utilization.
  private lazy val primes: Stream[BigInt] =
    Stream.cons(BigInt(2), primes.map(b => new BigInt(b.bigInteger.nextProbablePrime)))

  def nth(n: Int): Option[Int] =
    if (n < 1) None
    else Some(primes.drop(n - 1).head.toInt)
}

Version data entries

198 entries across 198 versions & 1 rubygems

Version	Path
trackler-2.2.1.14	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.13	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.12	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.11	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.10	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.9	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.8	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.7	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.6	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.5	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.4	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.3	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.2	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.1	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.1.0	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.0.6	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.0.5	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.0.4	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.0.3	tracks/scala/exercises/nth-prime/example.scala
trackler-2.2.0.2	tracks/scala/exercises/nth-prime/example.scala