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33 lines
757 B
33 lines
757 B
3 years ago
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import sys
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inp = {}
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solutions = []
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def juzgfvzgv(poi, path, twice):
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nex = inp[poi]
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#print(nex)
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for i in nex:
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if i == 'end':
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solutions.append(path + [i])
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continue
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elif i.islower() and i in path:
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if twice and i != 'start':
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juzgfvzgv(i, path + [i], False)
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else:
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continue
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else:
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juzgfvzgv(i, path + [i], twice)
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with open(sys.argv[1], 'r') as f:
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for i in f.readlines():
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i = i.strip()
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temp1, temp2 = i.split('-', 1)
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inp.setdefault(temp1, list()).append(temp2)
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inp.setdefault(temp2, list()).append(temp1)
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juzgfvzgv('start', ['start'], True)
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for i in solutions:
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print(i)
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print(len(solutions))
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