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Description: USACO 1.1.1
美国信息学奥林匹克竞赛第一题题解。
http://ace.delos.com/usacoprob2?a=tm4lT30HPme&S=ride
问题描述
科学家们在研究彗星后惊讶地发现，在每一个彗星后面都有一个不明飞行物UFO。 这些不明飞行物时常来带走来自地球上的一些支持者。不幸地，他们的空间在每次旅行只能带上一群支持者。 他们要做的是用一种聪明的方案让某个支持彗星UFO的团体都被彗星带走。他们为每个彗星起了一个名字，通过这些名字来决定一个团体是不是特定的彗星带走。 那个相配方案的细节是这样的:
所有团体的名字和彗星的名字都以下列各项方式转换成一个数字: 这个最后的数字代表名字中所有字母的信息，"A" 是 1 和 "Z" 是 26。
举例来说，团体 "USACO" 会是 21*19*1*3*15=17955 。 如果团体的数字 mod 47 等于慧星的数字 mod 47,那么你要告诉这个团体：准备好行李，走吧 !
现在，你要写一个程序来通过团体的名字和彗星的名字来决定一个组是否应该与在那一颗彗星后面的不明飞行物搭配。
写一个程序读入彗星的名字和团体的名字，如果搭配打印"GO"否者打印"STAY"
团体的名字和彗星的名字将会是没有空格或标点的一串大写字母（不超过6个字母）。 -Your Ride Is Here
It is a well-known fact that behind every good comet is a UFO. These UFOs often come to collect loyal supporters from here on Earth. Unfortunately, they only have room to pick up one group of followers on each trip. They do, however, let the groups know ahead of time which will be picked up for each comet by a clever scheme: they pick a name for the comet which, along with the name of the group, can be used to determine if it is a particular group s turn to go (who do you think names the comets?). The details of the matching scheme are given below your job is to write a program which takes the names of a group and a comet and then determines whether the group should go with the UFO behind that comet.
Both the name of the group and the name of the comet are converted into a number in the following manner: the final number is just the product of all the letters in the name, where "A" is 1 and "Z" is 26. For instance, the group "USACO" would be 21* 19* 1* 3* 15
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Author: 沉睡的青龙 |
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Description: 基于pushlet架构的http长连接聊天室程序-Http-based structure pushlet long process to connect to chat room
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Size: 637952 |
Author: lianjiaqi |
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Description: 可能许多人使用过比特彗星(BitComet)、比特精灵(BitSpirit)、迅雷下载过自己喜欢的影片、电视剧、网络游戏；还有很多人使用过PPLive、PPStream、沸点、QQ直播等免费的网络电视直播软件在线观看自己喜欢的影片。所有这些软件都采用了一种近年来流行起来的协议，BitTorrent协议，简称BT协议。
在互联网中，许多新技术深刻地改变了人们的工作、生活和学习的模式。Tim Berners Lee在1990年设计和发明了HTTP协议，从而引发了互联网的变革，使网络冲浪、电子商务成为可能，因此也造就了百度、谷歌等搜索引擎公司以及网易、雅虎、搜狐、新浪、腾讯等门户网站，同时也造就了一个又一个的数字英雄。在HTTP协议发明之前，统治互联网的是SMTP和FTP协议，这两种协议的通信量占据首位；HTTP协议诞生之后，其通信流量和使用率都占据了第一。2003年，年轻的软件工程师Bram Cohen发明了BitTorrent协议。在短短的时间内，BT协议的通信流量占据了互联网总流量的六成以上。BT协议成为一种新的变革技术，因此也催生了很多BT软件，如BitComet、BitSpirit、Azureus，PPLive、PPStream。
下面将详细介绍BT协议和技术的各个细节，并在此基础上使用C语言在Linux环境下开发了一个BT软件。
-Many people may have used Bit Comet (BitComet), Bitspirit (BitSpirit), Thunder downloaded their favorite movies, TV shows, online games there are a lot of people used PPLive, PPStream, boiling point, QQ and other free Internet TV live broadcast Software Online Watch your favorite movies. All of these software uses a popular protocol in recent years, BitTorrent protocol, referred to as BT protocol.
On the Internet, many new technologies profoundly changed the way people work, live and study models. Tim Berners Lee in 1990, designed and invented the HTTP protocol, which led to changes in the Internet, so that surfing the Internet, e-commerce possible, and therefore created Baidu, Google and other search engine companies as well as Netease, Yahoo, Sohu, Sina, Tencent and other portals, but also created a number of another hero. Prior to the invention in the HTTP protocol, the rule of the Internet is SMTP and FTP protocols, these two protocols traffic occupied the first HTTP protocol,
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Author: 笑问 |
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Description: 实现http长连接，有源码，可直接运行，熟悉java语言，很快掌握socket编程-Achieve long http connection, there is source code, can be directly run
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Size: 20480 |
Author: gaogao |
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Description: 使用基于PHP的http长连接技术（或称服务器推技术，comet技术）实现的随即聊天系统，功能类似于omegle
内部包括：
index.html——主页
style/——存放css的文件夹
js/——存放js的文件夹，使用ajax与后台通信
bin/——存放PHP脚本的文件夹，实现接受、处理后台数据-PHP' s http-based long-connection technology (or server push technology, comet technology) to achieve the then chat system, similar in function to the internal omegle include: index.html-- Home style/-- store css folder js/-- js file storage folder, use ajax and background communications bin/-- folder store PHP script to achieve acceptable background data processing
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Size: 6144 |
Author: 唐家兴 |
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Description: Comet：基于 HTTP 长连接的“服务器推”技术.-comet
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Size: 11264 |
Author: 廖明飞 |
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Description: 易语言彗星HTTP字节集POST模块支持易语言POST上传图片-Easy language comet HTTP Byte set POST module supports easy language POST upload pictures
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Size: 7168 |
Author: 何辉 |
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Description: 动态后门彗星HTTP应用基础教程
清岚之源搜集-Dynamic backdoor comet HTTP applications based tutorial
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Size: 8192 |
Author: 陈玉其 |
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Description: 彗星http源码~ 用很多次终于得到她的源码了。给大家分享了-Comet http source ~ with her many times and finally got the source. To share the
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Size: 22528 |
Author: 万生 |
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Description: 实时网络框架。
强大的REST风格的路线，插件，命令，Perl模板框，内容协商，会话管理，表单验证，测试框架，静态文件服务器，一流的Unicode支持和更多的等你来发掘-Features
An amazing real-time web framework, allowing you to easily grow single file Mojolicious::Lite prototypes into well structured web applications.
Powerful out of the box with RESTful routes, plugins, commands, Perl-ish templates, content negotiation, session management, form validation, testing framework, static file server, first class Unicode support and much more for you to discover.
Very clean, portable and Object Oriented pure-Perl API without any hidden magic and no requirements besides Perl 5.10.1 (although 5.18+ is recommended, and optional CPAN modules will be used to provide advanced functionality if they are installed).
Full stack HTTP and WebSocket client/server implementation with IPv6, TLS, SNI, IDNA, Comet (long polling), keep-alive, connection pooling, timeout, cookie, multipart, proxy, and gzip compression support.
Built-in non-blocking I/O web server, supporting multiple event loops as well as optional preforking and hot deploymen
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Size: 798720 |
Author: jack |
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Description: 一对一随机聊天系统
网站: http://www.woaiyl.com
在线演示: http://www.woaiyl.com
免费开源，任意使用
视频版：http://www.woaiyl.com/xvo.html
30元一套
简介: 一对一随机聊天系统是一个类似chatroulette.com的在线匿名聊天系统。
功能:
1.匿名用户配对聊天
2.聊天记录可以下载
3.可以显示对方输入状态
4.采用轮询服务器方式传输数据，相比comet方式，服务器压力小许多，而且轮询间隔时间可以调节。
5.显示在线人数
6.敏感词屏蔽
7.基于ip地址的地理位置显示
安装方法：
1.编辑common.php文件，填写数据库连接信息
2.上传文件到您的服务器
3.浏览器打开 install.php 执行安装
4.成功～～
其他：
1. badwords.txt 里面是敏感词列表。一行一个。 用户发送的敏感词会被替换为***。 修改此文件不需要重新安装。
2. ip.txt 里面是ip地理位置列表。 按照格式添加就可以了。修改了ip.txt需要重新运行install.php，因为ip信息需要写到数据库。
3. 修改网站名等信息可以在index.html里面配置。
4. 安装过后最好删除或者改名 install.php -One random chat site: http://www.woaiyl.com online demo: http://www.woaiyl.com free, open source, free to use video edition: http: //www.woaiyl.com/xvo.html 30 yuan a brief introduction: one random chat is a similar chatroulette.com anonymous online chat system. Function: 1. anonymous user pairing chat 2. chats can be downloaded 3. You can display the status of the other input 4. polling server transmission of data, compared to the comet way server stress many small, and the polling interval can be adjusted. 5. Display the online number 6. 7. shield sensitive words ip address location-based display installation methods: 1. Edit common.php file, fill in your connection information 2. Upload the file to your server 3. The browser opens install.php 4. Successful installation ~ Other: 1. badwords.txt which is sensitive word list. One per line. Users to send sensitive words will be replaced with***. Modify this file not need to reinstall. 2. ip.txt inside ip location lists. Follow the Add
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Size: 526336 |
Author: huanke2 |
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Description: 易语言移动邮箱源码例程程序结合易语言扩展界面支持库和彗星HTTP操作支持库，实现139移动邮箱的登录发短信。
-Easy language mobile mailbox source routine procedures combined with easy language extensions interface support library and the comet HTTP operations support library to achieve 139 mobile mailbox login sms.
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Size: 18432 |
Author: zhch76 |
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