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树最多有多少个重心?

Posted by sanshuiii at 2018-10-28 12:11:43 on Problem 3107
我如果保存重心的数组开到50005就可以ac,但是如果改成105就会re????难道一颗树可以有超过两个重心吗???





但是显然的,如果一棵树有超过两个重心,那么至少有两个重心不相邻,那么它们的路径上的任意一点分割的子树必定优于那两个重心中的至少一个。是什么原理???

有人可以分享一下测试数据吗?

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