tong92

const hexToBits = (hex) => hex.map(parseHex).join('')

const parseHex = (h) => HexMap[h]

const HexMap = {
  0:'0000',
  1:'0001',
  2:'0010',
  3:'0011',
  4:'0100',

tong92

case class User(name: String, friends: Set[Int] = Set()) {
  def isDirectFriendOf(user: Int): Boolean = friends.contains(user)
  def befriend(user: Int): User = copy(friends = friends + user)
}

case class UserWorld(users: List[User] = Nil) {
  def befriend(uA: Int, uB: Int): UserWorld = 
    UserWorld(users.updated(uA, users(uA).befriend(uB))
      .updated(uB, users(uB).befriend(uA))
    )

tong92

case class Container(amount: Double = 0.0, connects: Set[Int] = Set()) {
  def getAmount: Double = amount
  def addWater(water: Double): Container = copy(amount = water + amount)
}

case class ContainerWorld(containers: List[Container] = Nil) {
  def addWater(index: Int, water: Double): ContainerWorld = {
    ContainerWorld(containers.updated(index, containers(index).addWater(water)))
  }

tong92

case class Container(amount: Double = 0.0, connects: Set[Int] = Set()) {
  def getAmount: Double = amount
  def addWater(water: Double): Container = copy(amount = water + amount)
}

case class ContainerWorld(containers: List[Container] = Nil) {
  def addWater(index: Int, water: Double): ContainerWorld = {
    ContainerWorld(containers.updated(index, containers(index).addWater(water)))
  }

tong92

decodeMorse = function(morseCode){
 return wordSpliter(morseCode)
    .map(word => letterSpliter(word))
    .map(letters => letterDecoder(letters))
    .join(' ')
}

wordSpliter = function(morseCode){
  return morseCode.trim().split('   ')
}