﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>C++博客-Vontroy-随笔分类-组合数学</title><link>http://www.cppblog.com/vontroy/category/15059.html</link><description>Just AC~~!</description><language>zh-cn</language><lastBuildDate>Sat, 02 Oct 2010 06:31:13 GMT</lastBuildDate><pubDate>Sat, 02 Oct 2010 06:31:13 GMT</pubDate><ttl>60</ttl><item><title>组合数学常用公式及算法</title><link>http://www.cppblog.com/vontroy/archive/2010/10/02/128303.html</link><dc:creator>Vontroy</dc:creator><author>Vontroy</author><pubDate>Sat, 02 Oct 2010 06:25:00 GMT</pubDate><guid>http://www.cppblog.com/vontroy/archive/2010/10/02/128303.html</guid><wfw:comment>http://www.cppblog.com/vontroy/comments/128303.html</wfw:comment><comments>http://www.cppblog.com/vontroy/archive/2010/10/02/128303.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.cppblog.com/vontroy/comments/commentRss/128303.html</wfw:commentRss><trackback:ping>http://www.cppblog.com/vontroy/services/trackbacks/128303.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: /**//**********************************************1.&nbsp;C(m,n)=C(m,m-n)2.&nbsp;C(m,n)=C(m-1,n)+C(m-1,n-1)derangement&nbsp;D(n)&nbsp;=&nbsp;n!(1&nbsp;-&nbsp;1/1!&nbsp;+&nbsp;1/2!&nbsp;-&nbsp;1/3!&nb...&nbsp;&nbsp;<a href='http://www.cppblog.com/vontroy/archive/2010/10/02/128303.html'>阅读全文</a><img src ="http://www.cppblog.com/vontroy/aggbug/128303.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.cppblog.com/vontroy/" target="_blank">Vontroy</a> 2010-10-02 14:25 <a href="http://www.cppblog.com/vontroy/archive/2010/10/02/128303.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>