主要讲述了并查集的具体实现（树形）和应用，并配有例题-And focuses on the concrete realization of search sets (tree) and applications, and sample questions with

这个是暑假ACM培训时老师的资料，介绍了并查集的功能和实现，以及路径压缩，还有相关的ACM训练题-It came form the teacher s training, summer ACM club.In the ppt,the data sets were introduced and the function of investigation and implementation, and the path compression,as well as issues related to