UVA13247 Recomputing Dependencies

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=878&page=show_problem&problem=5170 [PDF](https://uva.onlinejudge.org/external/132/p13247.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13247/da9122ac420b6b2739a1de6499f15463067978d7.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13247/147a6b0f3449be7e9ffda6cf71549d80bc42c179.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13247/30d000b92bd4dcd15999fbee939f7402716dc4f9.png)