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tcpip
以太网首部的一个c语言程序,代码功能是对设备要传送的帧进行排队(Ethernet header c language program code function is queued frames to be transferred to the device)
- 2013-03-26 11:49:23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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kruscal_Primspanningtree
最小生成树两种经典算法,kruscal和Prim算法(spanning tree)
- 2010-07-14 10:10:54下载
- 积分:1
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Haffman
将一组数组转换为哈夫曼编码,使用数据结构中的二叉树功能实现(Convert an array to Haffman code)
- 2016-01-30 14:56:20下载
- 积分:1
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tudebianli
图的遍历问题 数据结构 C C++ 源码 课程设计
严蔚敏版的书(yrteryryer)
- 2010-05-08 09:24:06下载
- 积分:1
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zhan
队列的顺序存储结构和操作实现
队列的顺序存储结构和操作实现(The order of the queue storage structure and operation of the order of the realization of the queue storage structure and operation of the realization of)
- 2008-12-11 20:10:49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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work_std
工作时单元功能实现的部分资料
主要涉及字符串处理、排序算法,字符串查询、kmp、改进二分法、Unicode编码、uniq(functional modules work to achieve some of the information involved mainly string handling, sorting algorithm, string inquiries, kmp improve dichotomy, Unicode encoding, uniq)
- 2007-01-23 08:57:38下载
- 积分:1
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code
c语言的一些小李子,初学c的朋友有帮助,主要有顺序表、二分查找、二叉树、单链表等等(Some Survival Song c language, c beginner to help a friend, there are sequence tables, binary search, binary tree, a single linked list, etc.)
- 2011-08-11 20:50:26下载
- 积分:1
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class
给定m个n维向量a , a , ,am 1 2 ,向量分类问题要求将相同的向量划分为同一类。试用
抽象数据类型表设计解向量分类问题的有效算法。(Given m a n-dimensional vector a, a,, am 1 2 )
- 2008-05-05 22:03:41下载
- 积分:1