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Re:强烈建议加这组数据进去,练的解题表里怎么也把这题归为树型dp,想不通啊……

Posted by whr2290 at 2013-02-06 21:11:22 on Problem 1770
In Reply To:Re:强烈建议加这组数据进去,练的解题表里怎么也把这题归为树型dp,想不通啊…… Posted by:escalation at 2011-08-06 22:28:15
这组数据是错的,不符合题意。
题中的要求是从一个能级到另一个能级只有一条路径,所以不会有环。

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