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迷宫问题c源代码，大小为8*8的迷宫。主函数中输入开始位置和结束位置的坐标，输出所有可能的路径(Maze c source code, size 8* 8 of the maze. Enter the start the main function of the coordinates of the position and end position, the output of all possible paths)

简单LR语法分析程序自动生成器的实现，可用作数据结构课程设计(LR (0) grammar analysis)

说明：  有助于c++的初学者在平日的学习中更好的学习(Contribute to better learning c++ beginners learning on weekdays)

一、 地理数据文件应用 对由点、线、面构成的地理数据文件进行打开、读取、关闭操作。 要求： 1、在C++环境下，通过程序设计实现文本格式数据文件的操作； 2、在打开数据文件后，生成点、线、面三个链表，分别用于记录三种类型的数据。 3、数据文件结构说明 (Geographic data file applications by point, line, surface consisting of geographic data file open, read, and close operations. Requirements: in C++ environment, through the program design text format data file operations 2, open the data file, generate points, lines, surfaces three linked list, respectively, for the record three types of data. 3, a data file structure)

一．问题描述 对2006年度全国80多个城市的每天空气质量状况进行查询、排序等操作。 空气质量状况对象包括城市代码、城市名称、首要污染物、污染指数、污染物级别、空气状况、年、月、日 二、实验要求 1． 普通查询：输入城市名称和城市代码，分别查询该城市每天、每周、每月、每季度和全年的空气质量状况 例子：查询太原市2006年第8周的空气质量状况 2．统计查询： （1）输入城市名称和城市代码，分别查询该城市每周、每月、每季度和全年的空气质量为优、良、轻微污染、轻度污染、重污染的天数 例子：查询石家庄市2006年第2季度空气质量为轻微污染的总天数 （2）根据时间查询空气质量状况：输入周编号、月编号、季度编号或年编号，以及空气质量为优、良、轻微污染、轻度污染、重污染的天数，查找相应的城市名称 例子：查询2006年5月，空气被轻度污染3天以上的城市有哪些？ 3．排序查询 （1）输入周编号、月编号、季度编号或年编号，查询城市空气质量的排行榜 例子：查询2006年第6周，全国空气平均质量最好的前20个城市为哪些？ 三、数据文件 Data.txt(one. Problem Description of the air quality day in 2006 more than 80 cities nationwide query, sorting and other operations. Air Quality objects include city code, city name, the primary pollutant, pollution index, contaminant level, air condition, year, month, day two, experimental requirements 1. General Queries: Enter a city name and city codes, each query in the city daily, weekly, monthly, quarterly example air quality and full year: Queries air quality in Taiyuan first eight weeks of 2006 2. Statistical inquiry: (1) enter a city name and city codes, each query in the city weekly, monthly, quarterly and annual air quality as excellent, good, slight pollution, light pollution, heavy pollution days example: inquiry Shijiazhuang City in 2006 second quarter, the air quality is the total number of days a slight pollution (2) according to time of the query air quality conditions: enter the week number, month number, quarter number or in number, and the air quality is excellent, good, sli)

设计一个表达式求值的程序。该程序必须可以接受包含（，），+，-，*，/的中缀表达式，并求出结果。如果表达式正确，则输出表达式的结果；如果表达式非法，则不输出或输出其他字符。(Design an expression evaluation procedures. The program must accept (,), including +, -, *, / the infix expression, and the results obtained. If the expression is correct, the output of the expression is output; if the expression is illegal, no other characters are output or exported.)

链表的建立及相关处理，包括排序，删除，初始化，增加，删除等等，且程序已运行通过。(The establishment of a linked list and related processing, including sorting, delete, initialization, increase, delete, etc., and the program has been run through )

克鲁斯卡尔算法思想.cpp int seekedge(EDGE * (&a), int n) void bubble(EDGE * (&a), int size) void searchandjoin(EDGE * (&a1), int k) // a1是图边集头指针，a2是最小生成树边集的头指针，k为所要删的边 void storepicture(EDGE * (&a), int n, VERTEX *b, int m) (Thinking of Kruskal algorithm. Cpp int seekedge (EDGE* (& a), int n) void bubble (EDGE* (& a), int size) void searchandjoin (EDGE* (& a1), int k) // a1 edge set is the first pointer map, a2 is the minimum spanning tree of the first indicators margination, k for the edges to be deleted void storepicture (EDGE* (& a), int n, VERTEX* b, int m) )

这是数据结构很重要的程序，主要是课后题的答案，和代码，功能很强大(the data struct of the book)

本书是关于计算机科学与工程领域的基础性研究科目之一——数据结构与算法的专著。 本书在简要回顾了基本的C++ 程序设计概念的基础上，全面系统地介绍了队列、堆栈、树、图等基本数据结构，以及贪婪算法、分而治之算法、分枝定界算法等多种算法设计方法，为数据结构与算法的继续学习和研究奠定了一个坚实的基础。更为可贵的是，本书不仅仅介绍了理论知识，还提供了50多个应用实例及600多道练习题。 本书内容广博权威，结构清晰合理，是一本全新的有关数据结构与算法的教材，对于计算机科学与工程领域的从业人员也是一本很好的参考书。 11-15章 (This book is about the field of computer science and engineering subjects of basic research- data structures and algorithms monographs. In a brief review of the book based on the basic concept of C++ programming on a comprehensive and systematic introduction to the queues, stacks, trees, graphs and other basic data structures, and the greedy algorithm, a variety of algorithms divide and conquer algorithms, branch and bound algorithm design method for data structures and algorithms continue to learn and study laid a solid foundation. More valuable is the book not only theoretical knowledge, but also provides more than 50 application examples and more than 600 channel exercises. Book a broad authority, clear and reasonable structure, is a new data structures and algorithms related materials, for the field of computer science and engineering practitioners also a good reference book. Chapter 11-15)