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1800道数据结构题和答案

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lang=EN-US style='font-family:宋体'>14</span><span style='font-family:宋体'>．类似最优二叉树（哈夫曼树），可先合并含较少记录的文件，后合并较多记录的文件，使移动次数减少。见下面的哈夫曼树。<span
lang=EN-US><o:p></o:p></span></span></p>

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