<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[apple201506的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/apple201506</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; apple201506]]></copyright><item><title><![CDATA[数论知识。。。]]></title><link>https://blog.youkuaiyun.com/apple201506/article/details/101292714</link><guid>https://blog.youkuaiyun.com/apple201506/article/details/101292714</guid><author>apple201506</author><pubDate>Sun, 15 Jan 2017 16:46:00 +0800</pubDate><description><![CDATA[今天下午在做题上在cf上看到一个找勾股数的题，作为一名新手，当时一看就懵了，最后学习的的别人的博客。数论方面的知识：
数论，勾股数中寻找规律(若3个数，分别用a，b，c表示，其中a*a+b*b=c*c）：
当a为奇数时：a =2*n+1，b=2*n*(n+1)，c=2*n*(n+1)+1。当a为偶数时：a=2*n，b=n*n-1，c=n*n+1。
已知一个数可以解出n的值，其...]]></description><category></category></item><item><title><![CDATA[Codeforces 158 D]]></title><link>https://blog.youkuaiyun.com/apple201506/article/details/101292707</link><guid>https://blog.youkuaiyun.com/apple201506/article/details/101292707</guid><author>apple201506</author><pubDate>Sun, 15 Jan 2017 15:53:00 +0800</pubDate><description><![CDATA[题目链接 ：http://codeforces.com/contest/158/problem/D






D. Ice Sculptures

time limit per test
3 seconds

memory limit per test
256 megabytes

input
standard input

output
stan...]]></description><category></category></item></channel></rss>