UVA12057 Prefix Codes

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=242&page=show_problem&problem=3209 [PDF](https://uva.onlinejudge.org/external/120/p12057.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12057/2d99f0297bd99e4df3c4c92506a9e4e63244a4b6.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12057/9b001d185d27f47bf7f4834766b189d6d7f64b8e.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12057/3e13e91b45eab80df4abcf670262544394326a3a.png)