UVA10552 Genealogical Research

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=17&page=show_problem&problem=1493 [PDF](https://uva.onlinejudge.org/external/105/p10552.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10552/14d897a93f625b0e3d4168577491cb5f19de96af.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10552/0a7efdf2c0e8a8d1cec081974a11cc414076ca3e.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10552/97f54ba6feaabbad57a6016cb3105450fa236b5f.png)