24 lines
648 B
Python
24 lines
648 B
Python
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def make_permutation_iter(num, l, s, result):
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if not num:
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result.append((s, l))
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else:
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for i in range(len(l)):
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make_permutation_iter(num - 1, l[:i] + l[i + 1:], s + l[i], result)
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def make_permutation(num, l):
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result = []
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make_permutation_iter(num, l, '', result)
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return result
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def add_type(a, b):
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s = set()
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for x, left in make_permutation(a, '123456789'):
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for y, cmpr in make_permutation(b, left):
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multi = int(x) * int(y)
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if str(sorted(cmpr)) == str(sorted(str(multi))):
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s.add(multi)
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return sum(s)
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print(add_type(1, 4) + add_type(2, 3))
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