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// Scala Puzzler 54
object Test {
case class Card(number: Int, suit: String = "clubs") {
val value = (number % 13) + 1 // ace = 1, king = 13
def isInDeck(implicit deck: List[Card]) = deck contains this
}
def main(args: Array[String]) = {
implicit val deck = List(Card(1, "clubs"))
implicit def intToCard(n: Int): Card = Card(n)
assert(1.isInDeck)
}
}
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