UVA313 Intervals

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=5&page=show_problem&problem=249 [PDF](https://uva.onlinejudge.org/external/3/p313.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA313/e5cf48b93941acef7993bfcc0a07eeaedfaa58e2.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA313/b275d0926cf087f6f8c13bcefc9bbbf7b2d62e0e.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA313/d5c3f8055c5b318823e7605f85c2ec277ab3695c.png)