2.go

const DECK uint64 = 1 << 52 - 1

func isValidSet(x uint64) (bool) {
    return x <= DECK
}

deck-1.go

const (
  heart_a uint64 = 1 << iota  // 2^0
  heart_2 = 1 << iota  // 2^1
  heart_3 = 1 << iota  // 2^2
  heart_4 = 1 << iota  // 2^3
  heart_5 = 1 << iota  // 2^4
  heart_6 = 1 << iota  // 2^5
  heart_7 = 1 << iota  // 2^6
  heart_8 = 1 << iota  // 2^7
  heart_9 = 1 << iota  // 2^8
  heart_10 = 1 << iota // 2^9
  heart_j = 1 << iota  // 2^10
  heart_q = 1 << iota  // 2^11
  heart_k = 1 << iota  // 2^12
  spade_a = 1 << iota  // 2^13
  spade_2 = 1 << iota  // 2^14
  spade_3 = 1 << iota  // 2^15
  spade_4 = 1 << iota  // 2^16
  spade_5 = 1 << iota  // 2^17
  spade_6 = 1 << iota  // 2^18
  spade_7 = 1 << iota  // 2^19
  spade_8 = 1 << iota  // 2^20
  spade_9 = 1 << iota  // 2^21
  spade_10 = 1 << iota // 2^22
  spade_j = 1 << iota  // 2^23
  spade_q = 1 << iota  // 2^24
  spade_k = 1 << iota  // 2^25
  diamond_a = 1 << iota  // 2^26
  diamond_2 = 1 << iota  // 2^27
  diamond_3 = 1 << iota  // 2^28
  diamond_4 = 1 << iota  // 2^29
  diamond_5 = 1 << iota  // 2^30
  diamond_6 = 1 << iota  // 2^31
  diamond_7 = 1 << iota  // 2^32
  diamond_8 = 1 << iota  // 2^33
  diamond_9 = 1 << iota  // 2^34
  diamond_10 = 1 << iota // 2^35
  diamond_j = 1 << iota  // 2^36
  diamond_q = 1 << iota  // 2^37
  diamond_k = 1 << iota  // 2^38
  club_a = 1 << iota  // 2^39
  club_2 = 1 << iota  // 2^40
  club_3 = 1 << iota  // 2^41
  club_4 = 1 << iota  // 2^42
  club_5 = 1 << iota  // 2^43
  club_6 = 1 << iota  // 2^44
  club_7 = 1 << iota  // 2^45
  club_8 = 1 << iota  // 2^46
  club_9 = 1 << iota  // 2^47
  club_10 = 1 << iota // 2^48
  club_j = 1 << iota  // 2^49
  club_q = 1 << iota  // 2^50
  club_k = 1 << iota  // 2^51
)