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<h1 id="118">11.8 &nbsp; 桶排序<a class="headerlink" href="#118" title="Permanent link">&para;</a></h1>
<p>前述的几种排序算法都属于“基于比较的排序算法”,它们通过比较元素间的大小来实现排序。此类排序算法的时间复杂度无法超越 <span class="arithmatex">\(O(n \log n)\)</span> 。接下来,我们将探讨几种“非比较排序算法”,它们的时间复杂度可以达到线性阶。</p>
<p>「桶排序 bucket sort」是分治策略的一个典型应用。它通过设置一些具有大小顺序的桶每个桶对应一个数据范围将数据平均分配到各个桶中然后在每个桶内部分别执行排序最终按照桶的顺序将所有数据合并。</p>
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<p><img alt="根据概率分布划分桶" src="../bucket_sort.assets/scatter_in_buckets_distribution.png" /></p>
<p align="center"> 图 11-15 &nbsp; 根据概率分布划分桶 </p>
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