UVA11510 Erdös Unit Fractions

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=27&page=show_problem&problem=2505 [PDF](https://uva.onlinejudge.org/external/115/p11510.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11510/c773417e3ed03c4afcc08bc532804b11ccac62db.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11510/6a3e30cd14f3e69ef793eb2c6a75dff8b7a49bd8.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11510/91e53af4a302b0ca21e448732f17827d6742d16a.png)