文档包含了八个北大ACM上题目：进制转换，分解因式，词典，浮点数加法，集合加法，画家问题，密码，数根，特殊日历计算，两倍的解决方案和源代码。-North ACM document contains eight questions on: binary conversion, factorization, dictionaries, float addition, a collection of additions, painter problem, passwords, few roots, special calendar calculations, twice solutions and source code.