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LR(0)
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)
- 2013-09-22 09:26:25下载
- 积分:1
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sort
归并排序,复习排序算法,在不同环境下,寻找时间复杂度最少的排序算法(
Merge sort, review sorting algorithm, in different contexts, looking for the least time complexity of sorting algorithm)
- 2013-11-05 22:15:57下载
- 积分:1
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shopping-question
实现超市中排队购物用时最短,是计算机算法设计与分析中的一道题。自己写的程序,原创!(Achieve queued supermarket shopping with the shortest, is a question in the design and analysis of computer algorithms. Write their own procedures, original!)
- 2012-08-18 11:01:09下载
- 积分:1
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migong
输入迷宫行列数,1代表墙0代表路,之后系统生成路径(Enter the maze ranks number 1 represents 0 for Wall Road, after the system-generated path)
- 2016-05-14 20:16:00下载
- 积分:1
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zhebanchazhao
这半查找法 是一种快速查找算法 查找效率比较高 容易实现 理想的查找算法(This search method is a fast and find more efficient algorithms to find easy to implement the ideal search algorithm)
- 2012-05-04 00:03:29下载
- 积分:1
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12
说明: c编写的链表连接函数,上课时学的,上传试试 (c write the list to connect function, class, learn, try uploading)
- 2010-07-08 15:27:22下载
- 积分:1
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liu
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)
- 2017-04-07 10:58:37下载
- 积分:1
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Mult
说明: 数据结构课上作业实现了一个多项式乘法的功能有注解(Job class data structure implements a polynomial function of multiplication comments)
- 2011-03-20 20:28:31下载
- 积分:1
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test
使用vc编写的一个动态链接库,测试动态链接库的例程(Vc prepared using a dynamic link library, dynamic link library routine testing)
- 2010-05-28 23:27:09下载
- 积分:1
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order
通过冒泡排序法和选择排序法实现对若干数字的排序。(To achieve the order of several numbers)
- 2014-06-08 18:35:10下载
- 积分:1