UVA10883 Supermean

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=20&page=show_problem&problem=1824 [PDF](https://uva.onlinejudge.org/external/108/p10883.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10883/155ce9f16a316bb9960640413bc964c014207642.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10883/6b86f064694ab5cfa1593bbfca6a4875434d0fa3.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10883/e9e53dc819cc39a2978604af233b038fadd75229.png)