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bintree
一个关于二叉树应用的小程序,包括二叉树的建立,前中后遍历等操作(a program about bintree structure)
- 2009-05-17 16:54:29下载
- 积分:1
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Huffman
哈夫曼树可以使读者快速方便的查找所需文件(Huffman tree allows readers to quickly and easily find the file)
- 2010-06-09 13:09:47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
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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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tongxunlu20
具有数据插入、修改、删除、显示、和查询功能的电话簿管理程序。
数据包括:人名、工作单位、电话号码、和E-mail地址。
可对记录中的姓名和电话号码进行修改。
可增加或删除记录。
可显示所有保存的记录。
可按人名或电话号码进行查询。
附加功能:
可修改单个记录的各项内容。
可重新建立电话簿。
可按人名或号码进行排序。
可统计名片数目及可再添加数目。
可插入单个名片并不破坏原有顺序(With the data to insert, modify, delete, display, and query functions of the phone book management program. The data include: the names, work units, phone number, and E-mail address. Can be modified to record the name and phone number. Increase or delete records. You can display all the records kept. According to the names or telephone number for queries. Additional features: you can modify the content of a single record. Can re-establish a Phonebook. According to the names or numbers to be sorted. Statistical card number and add the number. Insert a single card does not destroy the original order)
- 2012-05-28 12:48:27下载
- 积分:1
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ABC-VC
蜂群算法C语言实现,附带中文注释,简单易懂(ABC algorithm coded using C programming language)
- 2020-09-16 02:17:56下载
- 积分:1
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2_24to2_28
双向链表 清华大学 出版社 《数据结构 C++》 源代码实现(Tsinghua University Press doubly linked list <data structure, C++> source code)
- 2011-02-05 22:08:53下载
- 积分:1
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labyrinth
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)
- 2010-12-19 23:31:36下载
- 积分:1
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ALGO3-9
用于迷宫问题的解决用户根据根据要求进行设置即可在屏幕上显示(Maze problems for users in accordance with the requirements set can be displayed on the screen)
- 2008-07-02 02:41:08下载
- 积分:1
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data_structure
数据结构c源代码实现,大概有100个左右,基本上将所有的数据结构都有介绍(Data structures c source code to achieve, there are about 100 or so, basically all of the data structures are described)
- 2012-07-19 21:43:52下载
- 积分:1