UVA12657 移动盒子 Boxes in a Line

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=602&page=show_problem&problem=4395 [PDF](https://uva.onlinejudge.org/external/126/p12657.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA12657/1170ffadcd74eec4928cd5a71382467fc466a216.png)

Input Format

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Output Format

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