zoj的题型分类，以及部分题目的AC代码，对于acm的新手来说是个很好的参考！！（CHM格式）-zoj questions of classification, as well as some topics AC code, for the novice acm is a good reference! ! (CHM format)

这是北京大学ACM在线POJ的一些重要题目的解题报告，其中在PPT中有详细的源码。一共100个左右。-This is the Peking University ACM online POJ some of the important topics of the problem-solving report, which are detailed in the PPT source. A total of about 100.

ZOJ,3000题目源码解析，配合另外两个文件基本所有题目都有了，认真阅读下就行了-ZOJ, 3000 subject source code analysis , with the other two documents have a basically all the questions , carefully read the next on the list

问题：枫教授在一所大学教数学，他发现了一个函数，用于获得一个表达式的操作数的目的，函数命名op(i,e)可以描述如下:(problem:Professor Maple teaches mathematics in a university. He have invented a function for the purpose of obtaining the operands from an expression. The function named op(i,e) can be descr