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Re:终于过了,每个点有3个状态。。

Posted by lcjh at 2010-07-12 23:17:19 on Problem 3659
In Reply To:终于过了,每个点有3个状态。。 Posted by:332404521 at 2009-08-29 12:45:27
对一个节点,三种情况
1,父节点覆盖它
2,自己放塔覆盖自己
3,子节点覆盖它

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