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bookmanage
基于数据结构的图书管理系统,基本功能都有,可以拿来作为数据结构的课程设计(Based library management system data structures, basic function, can be used as a data structure of the curriculum design)
- 2020-10-27 00:00:04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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LINK
建立链表的算法:
新节点链入表尾建立链表:
动态分配第一个节点变量;
用指针head 妥善保存链表第一个节点的地址值;
依次动态分配一个新节点变量;
将上一个节点的指针域指向新生成的节点;
循环3),4)步骤,直到所有节点均连入链表;
将最后一个节点的指针域赋值为0;
(Establish the list of algorithms:
The new node links footer build list:
Dynamic allocation of the first node variable
Keep the list head pointer of the first node address value
In order to dynamically allocate a new node variable
The domain of a node pointer to the new generation of nodes
Cycle 3), 4) step, until all nodes are connected to the chain
Pointer field will last node assigned to 0 )
- 2015-01-05 16:03:48下载
- 积分:1
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Brute-force-algorithm
穷举算法,VC中的经典程序之一,适合初学者,(Brute-force algorithm, the the of the classic procedures in in the the VC, suitable for beginners)
- 2012-06-06 21:20:06下载
- 积分:1
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KMP
说明: KMP算法的具体实现,能够在O(n+m)时间内找出字串在父串中的位置,n为父串长度,m为字串长度(KMP in the proposed algorithm, can be O (n+ m) time to find the string in the parent string position, n the parent string length, m for the string length)
- 2010-04-28 16:18:00下载
- 积分:1
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Insert
POJ 字符串的插入 可以将一定长度的字符串插入之前给出的字符串之中(POJ string can be inserted into a length of string into a string before being given)
- 2013-11-21 23:27:17下载
- 积分:1
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graph-DFS
邻接表存储图,然后进行深度优先遍历及广度优先遍历。(DFS,adjacent matrix)
- 2013-10-27 20:16:41下载
- 积分:1
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DataStructureTest
数据结构的一些基本的相关的试验,如二叉树的遍历,打印,如排序算法,检索算法,动态结构的静态实现实验(Data structures related to some basic tests, such as binary tree traversal, print, such as sorting algorithms, search algorithms, the dynamic structure of the realization of the experimental static)
- 2009-01-20 13:18:22下载
- 积分:1
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插入排序
根据所选定的字符顺序,按照从大到小的规则,对字符进行插入排序,(Insert and sort characters)
- 2020-06-22 12:40:01下载
- 积分:1
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structure-array-code
根据队列搜索算法的基本思想,现设计了一个简单的结构体数组如下定义代码所示。此结构体数组具备控制结点搜索和存储结点信息和路径的功能,可以较好的实现TDN的最小时间路径搜索。(Search algorithm based on the basic idea of the queue is now designed a simple structure array as defined code. This structure array with the control node and storage node information search and path functions, you can achieve better TDN minimum time path search.)
- 2013-10-09 14:35:43下载
- 积分:1