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  1. import scala.annotation.tailrec
  2. import scala.util.Random
  3.  
  4. object Main extends App {
  5.   @tailrec
  6.   def sumToOne(acc: Double = 0, count: Int = 0): Int = {
  7.     if (acc >= 1) count
  8.     else sumToOne(acc + Random.nextDouble(), count + 1)
  9.   }
  10.  
  11.   val iterations = 1000000
  12.   println((1 to iterations).map(_ => sumToOne()).sum / iterations.toDouble)
  13. }
Success #stdin #stdout 0.52s 4382720KB
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2.717661
https://ideone.com/n5l26C
language:
Scala (scala 2.12.8)
created:
7 years ago
visibility:
public

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