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	<title>大顶堆 - 四号程序员</title>
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		<title>Python使用heapq实现小顶堆（TopK大）、大顶堆（BtmK小）</title>
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		<pubDate>Tue, 12 Mar 2013 08:34:40 +0000</pubDate>
				<category><![CDATA[Python]]></category>
		<category><![CDATA[Bottomk]]></category>
		<category><![CDATA[heapq]]></category>
		<category><![CDATA[Topk]]></category>
		<category><![CDATA[优先队列]]></category>
		<category><![CDATA[堆]]></category>
		<category><![CDATA[大顶堆]]></category>
		<category><![CDATA[小顶堆]]></category>
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					<description><![CDATA[需1求：给出N长的序列，求出TopK大的元素，使用小顶堆，heapq模块实现。 import heapq import random class TopkHeap(object): def __init__(self, k): self.k = k self.data = [] def Push(self, elem): if len(self.data) &#60; self.k:[......] 继续阅读]]></description>
		
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