12 lines
434 B
Python
12 lines
434 B
Python
>>> with open('unixdict.txt') as f:
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wordset = set(f.read().strip().split())
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>>> revlist = (''.join(word[::-1]) for word in wordset)
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>>> pairs = set((word, rev) for word, rev in zip(wordset, revlist)
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if word < rev and rev in wordset)
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>>> len(pairs)
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158
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>>> sorted(pairs, key=lambda p: (len(p[0]), p))[-5:]
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[('damon', 'nomad'), ('lager', 'regal'), ('leper', 'repel'), ('lever', 'revel'), ('kramer', 'remark')]
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>>>
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