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	<title>Comments on: 图的割顶与桥</title>
	<atom:link href="http://cuitianyi.com/blog/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5/feed/" rel="self" type="application/rss+xml" />
	<link>http://cuitianyi.com/blog/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5/</link>
	<description>我读·我听·我思·我行</description>
	<pubDate>Tue, 06 Jan 2009 04:34:27 +0000</pubDate>
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		<item>
		<title>By: oldherl</title>
		<link>http://cuitianyi.com/blog/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5/comment-page-1/#comment-257</link>
		<dc:creator>oldherl</dc:creator>
		<pubDate>Sat, 19 Jul 2008 02:23:24 +0000</pubDate>
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		<description>怎么我的trackback还乱码了……</description>
		<content:encoded><![CDATA[<p>怎么我的trackback还乱码了……</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: ÁõË¼×³</title>
		<link>http://cuitianyi.com/blog/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5/comment-page-1/#comment-256</link>
		<dc:creator>ÁõË¼×³</dc:creator>
		<pubDate>Wed, 16 Jul 2008 02:39:56 +0000</pubDate>
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		<description>&lt;strong&gt;2008-07-15 ×Ü½á...&lt;/strong&gt;

×òÌìÆäÊµÃ»ÓÐ×öÊ²Ã´ºÃÌâ£¬µ«ÊÇÕâ´ÎPKU±ÈÈüÊ¹ÎÒ´ÓÇ°¼¸ÌìµÄµÍÃÔ×´Ì¬ÖÐ»Ö¸´ÁË¹ýÀ´¡£ÓÖÓÐÁË×öÌâµÄÓûÍûÁË£¬Ó¦¸ÃËãÊÇºÜ¼°Ê±µÄ°É¡£Õâ´ÎPKU±ÈÈüµÄÌ...</description>
		<content:encoded><![CDATA[<p><strong>2008-07-15 ×Ü½á&#8230;</strong></p>
<p>×òÌìÆäÊµÃ»ÓÐ×öÊ²Ã´ºÃÌâ£¬µ«ÊÇÕâ´ÎPKU±ÈÈüÊ¹ÎÒ´ÓÇ°¼¸ÌìµÄµÍÃÔ×´Ì¬ÖÐ»Ö¸´ÁË¹ýÀ´¡£ÓÖÓÐÁË×öÌâµÄÓûÍûÁË£¬Ó¦¸ÃËãÊÇºÜ¼°Ê±µÄ°É¡£Õâ´ÎPKU±ÈÈüµÄÌ&#8230;</p>
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	<item>
		<title>By: 夏犹寒</title>
		<link>http://cuitianyi.com/blog/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5/comment-page-1/#comment-255</link>
		<dc:creator>夏犹寒</dc:creator>
		<pubDate>Wed, 09 May 2007 11:30:45 +0000</pubDate>
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		<description>...hsiayh@163.com</description>
		<content:encoded><![CDATA[<p><a href="mailto:...hsiayh@163.com">&#8230;hsiayh@163.com</a></p>
]]></content:encoded>
	</item>
	<item>
		<title>By: 夏犹寒</title>
		<link>http://cuitianyi.com/blog/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5/comment-page-1/#comment-254</link>
		<dc:creator>夏犹寒</dc:creator>
		<pubDate>Wed, 09 May 2007 09:31:18 +0000</pubDate>
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		<description>不客气，还有一件事，我很想要你qq号啊。。。
如果可以就发到我邮箱吧，谢啦！</description>
		<content:encoded><![CDATA[<p>不客气，还有一件事，我很想要你qq号啊。。。<br />
如果可以就发到我邮箱吧，谢啦！</p>
]]></content:encoded>
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	<item>
		<title>By: tianyi</title>
		<link>http://cuitianyi.com/blog/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5/comment-page-1/#comment-253</link>
		<dc:creator>tianyi</dc:creator>
		<pubDate>Tue, 08 May 2007 13:00:34 +0000</pubDate>
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		<description>哎呀……笔误笔误，太谢谢你了。</description>
		<content:encoded><![CDATA[<p>哎呀……笔误笔误，太谢谢你了。</p>
]]></content:encoded>
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	<item>
		<title>By: 夏犹寒</title>
		<link>http://cuitianyi.com/blog/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5/comment-page-1/#comment-252</link>
		<dc:creator>夏犹寒</dc:creator>
		<pubDate>Tue, 08 May 2007 10:50:38 +0000</pubDate>
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		<description>...我说的是
w是割顶当且仅当v不是根且Num[v]
^
v是割顶当且仅当v不是根且存在w使Num[v]
^                    ^^^^^
也就是说，v是否为割顶，与v的儿子有关，而与父亲无关。
我是否说清楚了？</description>
		<content:encoded><![CDATA[<p>&#8230;我说的是<br />
w是割顶当且仅当v不是根且Num[v]<br />
^<br />
v是割顶当且仅当v不是根且存在w使Num[v]<br />
^                    ^^^^^<br />
也就是说，v是否为割顶，与v的儿子有关，而与父亲无关。<br />
我是否说清楚了？</p>
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	<item>
		<title>By: tianyi</title>
		<link>http://cuitianyi.com/blog/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5/comment-page-1/#comment-251</link>
		<dc:creator>tianyi</dc:creator>
		<pubDate>Mon, 07 May 2007 13:47:36 +0000</pubDate>
		<guid isPermaLink="false">http://tianyi.yo2.cn/articles/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5.html#comment-251</guid>
		<description>我括号里不是写有：以上Par[w]==v 么。</description>
		<content:encoded><![CDATA[<p>我括号里不是写有：以上Par[w]==v 么。</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: 夏犹寒</title>
		<link>http://cuitianyi.com/blog/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5/comment-page-1/#comment-250</link>
		<dc:creator>夏犹寒</dc:creator>
		<pubDate>Mon, 07 May 2007 13:26:30 +0000</pubDate>
		<guid isPermaLink="false">http://tianyi.yo2.cn/articles/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5.html#comment-250</guid>
		<description>。。。丢一半。。。不过后边是一样的。。。</description>
		<content:encoded><![CDATA[<p>。。。丢一半。。。不过后边是一样的。。。</p>
]]></content:encoded>
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	<item>
		<title>By: 夏犹寒</title>
		<link>http://cuitianyi.com/blog/%e5%9b%be%e7%9a%84%e5%89%b2%e9%a1%b6%e4%b8%8e%e6%a1%a5/comment-page-1/#comment-249</link>
		<dc:creator>夏犹寒</dc:creator>
		<pubDate>Mon, 07 May 2007 13:22:31 +0000</pubDate>
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		<description>原文有些不妥，不知是不是笔误，应该这样说吧：

v是割顶当且仅当v不是根且存在w（Par[w]==v）使Num[v]</description>
		<content:encoded><![CDATA[<p>原文有些不妥，不知是不是笔误，应该这样说吧：</p>
<p>v是割顶当且仅当v不是根且存在w（Par[w]==v）使Num[v]</p>
]]></content:encoded>
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