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这个做两遍O（N）的DP，2遍O（N）更新，然后O（N）扫描一遍In Reply To:调了半天 都不知道为什么会超时 要郁闷了 牛人帮我看看吧~ 谢谢了：） Posted by:kakassi at 2009-08-07 16:46:37 Followed by:
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