Battleship.scala

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

object Battleship {
  val INPUT = "A-large-practice.in"
  val OUTPUT = INPUT.takeWhile(_ != '.') + ".out"
  val isConsole = false

  def main(args: Array[String]): Unit = {
    val itr = Source.fromFile(INPUT).getLines()
    val stream = if (isConsole) Console.out else new FileOutputStream(OUTPUT)
    try {
      Console.withOut(stream) {
        val sets = itr.next().toInt
        (1 to sets).foreach { set =>
          val Array(r,c,w) = itr.next().split(' ').map(_.toInt)
          println(f"Case #$set: ${minimumScore(r, c, w)}")
        }
      }
    } finally {
      stream.flush()
      if (!isConsole) stream.close()
    }
  }

  def minimumScore(R:Int, C:Int, W:Int) = {
    val mod = if(C % W == 0) 1 else 0
    R * (C / W) + W - mod
  }
}