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学编译原理时写的一个语法分析程序 一．[目的要求] ① 对输入文法，由程序自动构造FIRST FOLLOW集 ② 对输入文法，由程序自动生成它的LL(1)分析表； ③ 对于给定的输入串，应能判断识别该串是否为给定文法的句型。 二．[题目分析] 该程序可分为如下几步： （1）读入文法 （2）判断正误 （3）若无误，判断是否为LL(1) ...

HDOJ ACM input:The input consists of T test cases. The number of test cases ) (T is given in the first line of the input. Each test case begins with a line containing an integer N , 1<=N<=200 , that represents the number of tables to move. Each of the following N lines contains two positive integers ...

acm HDOJ 1051WoodenSticks Description: There is a pile of n wooden sticks. The length and weight of each stick are known in advance. The sticks are to be processed by a woodworking machine in one by one fashion. It needs some time, called setup time, for the machine to prepare processing a stick. Th ...

Learning Kernel Classifiers: Theory and Algorithms, Introduction This chapter introduces the general problem of machine learning and how it relates to statistical inference. 1.1 The Learning Problem and (Statistical) Inference It was only a few years after the introduction of the first computer that ...

We propose a simple and effective method for detecting view- and scale-independent ridge-valley lines defined via first- and secondorder curvature derivatives on shapes approximated by dense triangle meshes.

对于CPU线程调度的模拟，CPU threads control simulation，包括first come first serve算法和run rubbing等，同时输出线程开始，切换，结束等信息。

1、锁定某个主题抓取； 2、能够产生日志文本文件，格式为：时间戳(timestamp)、URL； 3、抓取某一URL时最多允许建立2个连接（注意：本地作网页解析的线程数则不限） 4、遵守文明蜘蛛规则：必须分析robots.txt文件和meta tag有无限制；一个线程抓完一个网页后要sleep 2秒钟； 5、能对HTML网页进行解析，提取出链接URL，能判 ...

This book is intended for embedded system programmers, consultants and students interested in real-time operating systems. μC/OS-II is a high performance, deterministic real-time kernel and can be embedded in commercial products (see Appendix F, Licensing). Instead of writing your own kernel, you s ...

① 对输入文法，由程序自动构造FIRST FOLLOW集 ② 对输入文法，由程序自动生成它的LL(1)分析表； ③ 对于给定的输入串，应能判断识别该串是否为给定文法的句型。

输入已经消除左递归的以及提取公共左因子的LL(1)文法，再输入相应的表达式，若分析成功，则在递归输出过程中输出"acc",若不成功，则有相应的报错以及位置指名。注意，要把同一个非终结符的产生式分成单个输入。他会自动计算first,follow,预测分析表的构造，但并不输出。 ...