ACM校内赛的讲义，里面详细介绍了在ACM竞赛中常用的算法和思想，以及编程基础知识，里面含有例题讲解，以及习题，实验-ACM campus race handout, which details the algorithms used in the ACM contests and ideas, as well as programming the basics, which contains examples to explain, as well as exercises, experime