whym

// benchmark Java/Scala BigInt/BitSet implementations

import scala.util.Random
import scala.collection.mutable
import scala.collection.immutable
import java.util.BitSet
import java.math.BigInteger

// derived from https://github.com/alexmasselot/benchmark-bitarray/blob/master/src/benchmark/bitarray/TimeIt.scala
def timeInMilli(n: Int, f: () => Unit) = {