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26 lines
409 B
Python
26 lines
409 B
Python
gr = {
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"а": "бг",
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"б": "д",
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"в": "абгдж",
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"г": "ж",
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"д": "ие",
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"е": "влк",
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"ж": "е",
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"и": "ел",
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"к": "ж",
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"л": "к",
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}
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def f(p, path):
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if p == "е" and path:
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return 1
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s = []
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for n in gr[p]:
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if n not in path:
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s.append(f(n, path + [n]))
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return sum(s)
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print(f("е", []))
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