Query
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Description
Master Ou has a weighted tree, the nodes was numbered from . The people in ou's place believe that there exists a magical path in such tree that the xor sum of the edges' weight is the maximun among all the path in the tree.Input Format
, denoting the amount of edges. The next lines contain three positive integer , denoting there is an edge between that weightsOutput Format
You should print the answer in a single line.4
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2 4 672020HBCPC训练赛
- 状态
- 已结束
- 规则
- ACM/ICPC
- 题目
- 8
- 开始于
- 2020-9-12 13:00
- 结束于
- 2020-9-12 17:00
- 持续时间
- 4 小时
- 主持人
-
2080226675@qq.com
- 参赛人数
- 15
