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这个题目 0ms用什么算法用了trie树，感觉效率应该可以的，因为牺牲了空间嘛 但是一看 125ms，第一的居然0ms，我靠，这个是什么算法，这么神！ 用scanf了，也没有用new，用的buff缓存，我能想到的节约时间的 都有了 Followed by:
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