Power Set
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def print_powerset(a):
l = len(a)
r = range(l)
b = [0] * l
while True:
print([a[x] for x in r if b[x]])
i = 0
while True:
if b[i] == 0:
b[i] = 1
break
b[i] = 0
i += 1
if i == l:
return
print_powerset([1, 2, 3, 4, 5])
Python
INFO