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这题有没有用二分匹配过了的?我用二分匹配老是wa。

Posted by 2008061428 at 2009-08-24 09:25:29 on Problem 3740 and last updated at 2009-08-26 18:10:36
我一看这题就感觉可以用二分匹配做。很快就写了个,结果wa到哭了。


请问:这题可不可以用二分匹配做啊?

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