UVA12037 Musical Chair

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=242&page=show_problem&problem=3188 [PDF](https://uva.onlinejudge.org/external/120/p12037.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12037/39a7a931eb64550ff58ec3edced34bb206ba7d18.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12037/fb6050cdce89b1d7e1b06a1f607e451e8c099233.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12037/336534197d9e8c437044a0ac8f8244e94049a7ce.png)