[A2/hun] 2 Answer(Invite Party)

def inviteParty(first:Array[String], second:Array[String]) : Int = {
  var mResultCnt = 1

  var mFirstMap = mutable.Map[String, Int]()
  var mSecondMap = mutable.Map[String, Int]()

  for (num <- first.indices) {
    if(mFirstMap.contains(first(num)) || mSecondMap.contains(first(num))
      || mFirstMap.contains(second(num)) || mSecondMap.contains(second(num))){
      mResultCnt+=1
    }
    mFirstMap.put(first(num), 1)
    mSecondMap.put(second(num), 1)
  }

  mResultCnt
}

 답!