AntProgression.scala

package sclass

/**
 * @author Keesun Baik
 */
class AntProgression {

  def next(num: String): String = {
    val charList: List[Char] = num.toList
    var nums: Map[Char, Int] = Map()

    for (i <- 0 until charList.length) {
      if (nums.get(charList(i)) == None){
        nums += (charList(i) -> 1)
      } else {
        var count:Int = nums.get(charList(i)).get
        count += 1
        nums += (charList(i) -> count)
      }
      println(nums)
    }
    var result:String = ""

    nums.keys.foreach{ c =>
      result += nums(c) + "" + c
    }

    result
  }
}

object AntProgressionTest extends App {
  val app:AntProgression = new AntProgression
  println(app.next("1"))
}