Sha256: 53fe89944468fa06d5db01c70e6ecd41b5a5318b0868ff1b5af53cdaa121b1a0
Contents?: true
Size: 1.09 KB
Versions: 325
Compression:
Stored size: 1.09 KB
Contents
def poker(hands):
return allmax(hands, key=hand_rank)
def allmax(iterable, key=None):
result, maxval = [], None
key = key or (lambda x: x)
for x in iterable:
xval = key(x)
if not result or xval > maxval:
result, maxval = [x], xval
elif xval == maxval:
result.append(x)
return result
def hand_rank(hand):
card_ranks = ["..23456789TJQKA".index(r) for r, s in hand]
groups = [(card_ranks.count(i), i) for i in set(card_ranks)]
groups.sort(reverse=True)
counts, ranks = zip(*groups)
if ranks == [14, 5, 4, 3, 2]:
ranks = [5, 4, 3, 2, 1]
straight = (len(counts) == 5) and (max(ranks) - min(ranks) == 4)
flush = len(set([s for r, s in hand])) == 1
return (9 if counts == (5,) else
8 if straight and flush else
7 if counts == (4, 1) else
6 if counts == (3, 2) else
5 if flush else
4 if straight else
3 if counts == (3, 1, 1) else
2 if counts == (2, 2, 1) else
1 if counts == (2, 1, 1, 1) else
0, ranks)
Version data entries
325 entries across 325 versions & 1 rubygems