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Big O(n!) Example

Big O(n!), you will never find being used in coding. It is the most expensive time complexity. Here is an example that weighs O(n!)

class Abc:
@classmethod
def forloop(cls, a, b, endrange, d):
for c in range(0,endrange):
print("{} {} {}".format(a, b, c))
d += 1
print(d)
return d


xyz = Abc()
d = 0
endrange = 5
for a in range(0,endrange):
for b in range(0,endrange):
e = xyz.forloop(a, b, endrange, d)
d = e

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