PowerLevels.scala

import java.io.FileOutputStream
import scala.io.Source

object PowerLevels {
  def multifactorialArray:Array[Int] = {
    Array.tabulate(9000) {i =>
        Math.ceil((9000 until 1 by -(i+1)).map(Math.log10(_)).sum).toInt
    }
  }
  
  def solve(digits:Int, array:Array[Int]) = {
    val factorial = array.indexWhere(digits > _) + 1
    if(factorial == 0) "..."
    else "IT'S OVER 9000"+"!"*factorial
  }

  def main(args: Array[String]): Unit = {
    val INPUT = "C-large-practice.in"
    val OUTPUT = INPUT.takeWhile(_ != '.') + ".out"
    val isConsole = false

    val itr = Source.fromFile(INPUT).getLines()
    val stream = if (isConsole) Console.out else new FileOutputStream(OUTPUT)
    try {
      Console.withOut(stream) {
        val array = multifactorialArray
        val sets = itr.next().toInt
        (1 to sets).foreach { set =>
          println(f"Case #$set: ${solve(itr.next().toInt, array:Array[Int])}")
        }
      }
    } finally {
      stream.flush()
      if (!isConsole) stream.close()
    }
  }
}