UVA12312 Bounding Volume Hierarchy

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=278&page=show_problem&problem=3734 [PDF](https://uva.onlinejudge.org/external/123/p12312.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12312/835fb21d7733b9eaadc4b533a84fd59d691dd16d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12312/ae8bd08b0702f2d7026095807829b4920b36bb9e.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12312/fce62c2445ad1dba263a0f16dd0dc5eb9cfb03f5.png)