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LRJ的黑书上关于LCA讲了很多东西... 就是不会实现,其实是存在 N 或 NLONG 方法的In Reply To:请问这个题目怎么做,想不出低于N^2的算法... Posted by:xiaomi at 2004-12-17 20:39:34 Followed by:
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