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枚举变化，排序单词内部字母，直接hash.In Reply To:感觉跟pku2564 Edit Step Ladders 有点像，只不过先对单词中字母和所有单词排个序……（见内） Posted by:bluewind at 2006-09-11 21:25:35 > 感觉跟 pku2564 Edit Step Ladders 有点像，只不过先对单词中字母和所有单词排个序。pku2564要用trie来做，如果这题用trie做，我不知道在trie中要如何存路径。直接土做+优化可以过，不过我用了3842MS，我猜1s内的人应该不是土做的吧。 Followed by: Post your reply here: |
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