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gists/Array combinations
J. Fernando Sánchez 0dfa2fb286
2014-02-24 03:32:08 -08:00

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a=set([1,2,3,4])
b=set([4,5,6,7])
c=set([7,8,9])
def array_combinations(*args):
combinations = [[i] for i in set(args[0])]
for arg in args[1:]:
tempcomb = []
for i in set(arg):
tempcomb += [c+[i] for c in combinations if i not in c ]
combinations = tempcomb
return combinations
res = array_combinations(a,b,c)
print res
print len(res)