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11 lines
188 B
Python
11 lines
188 B
Python
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def f(n, path):
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if len(path) == 12:
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return path
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return f(n + 1, path + [n + 1]) + f(n - 1, path + [n - 1])
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r = f(1, [])
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print(len(r))
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print(len(list(set(r))))
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