In densely populated cities, emergency response vehicles (ambulances, fire engines) routinely lose critical, life-saving minutes stuck in heavy traffic gridlocks and red lights. In conventional urban ...
哈夫曼编码是一种经典的无损压缩算法，核心思想是根据字符出现频率分配变长编码，高频字符用短码、低频字符用长码，从而在整体上减少数据存储量。这一过程依赖前缀码特性，确保解码时无需分隔符即可唯一还原原始内容。在工程实现中，优先队列（最小堆）用于高效构建哈夫曼树，Map结构 ...
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