PTA File Transfer

最新推荐文章于 2022-04-22 22:13:23 发布

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最新推荐文章于 2022-04-22 22:13:23 发布 · 800 阅读

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#数据结构 #并查集 #按秩归并

博客探讨了一种网络中电脑间文件传输的问题，通过建立并查集数据结构解决。内容涉及输入输出规格，解题思路包括集合合并与搜索，使用数组存储节点联系，通过按秩归并压缩树的深度，确保网络中任意两台电脑间存在路径。作者指出了按秩归并相对于路径压缩的优势，并提供了测试数据链接。

We have a network of computers and a list of bi-directional connections. Each of these connections allows a file transfer from one computer to another. Is it possible to send a file from any computer on the network to any other?

Input Specification:

Each input file contains one test case. For each test case, the first line contains N (2≤N≤104), the total number of computers in a network. Each computer in the network is then represented by a positive integer between 1 and N. Then in the following lines, the input is given in the format:

where I stands for inputting a connection between c1 and c2; or

where C stands for checking if it is possible to transfer files between c1 and c2; or

where S sta