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First solution in Clear category for Texas Referee by yoichi
RANKS = "AKQJT98765432"
SUITS = "hdcs"
KEY = lambda c: RANKS.find(c[0])*len(SUITS) + SUITS.find(c[1])
def get_straight_flush(cards):
for c in sorted(cards, key=KEY):
ci = RANKS.find(c[0])
if ci + 5 > len(RANKS):
return None
for i in range(1, 5):
if (RANKS[ci + i] + c[1]) not in cards:
break
else:
return [RANKS[ci + i] + c[1] for i in range(5)]
else:
return None
def get_same_kinds(a, cards):
results = []
for n in a:
for r in sorted(set(c[0] for c in cards), key=lambda c: RANKS.find(c)):
same_kind = list(filter(lambda c: c[0] == r, cards))
if len(same_kind) == n:
results += same_kind
cards = list(filter(lambda c: c not in same_kind, cards))
break
else:
return None
return results + sorted(cards, key=KEY)[:5-len(results)]
def get_flush(cards):
for s in SUITS:
same_suit = list(filter(lambda c: c[1] == s, cards))
if len(same_suit) == 5:
return same_suit
return None
def get_straight(cards):
cards = sorted(cards, key=KEY)
ranks = "".join(map(lambda c: c[0], cards))
for i in range(len(RANKS)-5):
results = []
ri = 0
for r in RANKS[i:i+5]:
ri = ranks.find(r, ri)
if ri < 0:
break
results.append(cards[ri])
else:
return results
return None
def get_high_card(cards):
return sorted(cards, key=KEY)[:5]
PREDICATES = [get_straight_flush,
[4], # four of a kind
[3, 2], # full house
get_flush,
get_straight,
[3], # three of a kind
[2, 2], # two pair
[2], # one pair
get_high_card]
def texas_referee(cards_str):
cards = cards_str.split(",")
for pred in PREDICATES:
if isinstance(pred, list):
results = get_same_kinds(pred, cards)
else:
results = pred(cards)
if results:
break
return ",".join(sorted(results, key=KEY)[:5])
if __name__ == '__main__':
# These "asserts" using only for self-checking and not necessary for auto-testing
assert texas_referee("Kh,Qh,Ah,9s,2c,Th,Jh") == "Ah,Kh,Qh,Jh,Th", "High Straight Flush"
assert texas_referee("Qd,Ad,9d,8d,Td,Jd,7d") == "Qd,Jd,Td,9d,8d", "Straight Flush"
assert texas_referee("5c,7h,7d,9s,9c,8h,6d") == "9c,8h,7h,6d,5c", "Straight"
assert texas_referee("Ts,2h,2d,3s,Td,3c,Th") == "Th,Td,Ts,3c,3s", "Full House"
assert texas_referee("Jh,Js,9h,Jd,Th,8h,Td") == "Jh,Jd,Js,Th,Td", "Full House vs Flush"
assert texas_referee("Js,Td,8d,9s,7d,2d,4d") == "Td,8d,7d,4d,2d", "Flush"
assert texas_referee("Ts,2h,Tc,3s,Td,3c,Th") == "Th,Td,Tc,Ts,3c", "Four of Kind"
assert texas_referee("Ks,9h,Th,Jh,Kd,Kh,8s") == "Kh,Kd,Ks,Jh,Th", "Three of Kind"
assert texas_referee("2c,3s,4s,5s,7s,2d,7h") == "7h,7s,5s,2d,2c", "Two Pairs"
assert texas_referee("2s,3s,4s,5s,2d,7h,8h") == "8h,7h,5s,2d,2s", "One Pair"
assert texas_referee("3h,4h,Th,6s,Ad,Jc,2h") == "Ad,Jc,Th,6s,4h", "High Cards"
April 18, 2015
