UVA10902 Pick-up Sticks

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=21&page=show_problem&problem=1843 [PDF](https://uva.onlinejudge.org/external/109/p10902.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10902/702970269e727240519ea95b134ce15226100639.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10902/3a664d7003b9287c3232980a0beba3fdabca3e46.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10902/fe0d3e9168cc4cfc10d135dee5ab2e9e30f0953d.png)