UVA536 二叉树重建 Tree Recovery

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=7&page=show_problem&problem=477 [PDF](https://uva.onlinejudge.org/external/5/p536.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA536/31880d83284f88152bc3ced132e44a059287841d.png)

Input Format

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Output Format

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