The dashed circle shows the current best distance. As the algorithm finds closer points, the circle shrinks, which causes more subtrees to fail the "could contain a closer point?" test and get pruned. The search usually gets cheaper as it progresses.
System/3. One wonders if the System/3's limited success lead to excess stock of
。搜狗输入法下载对此有专业解读
controller.enqueue(processChunk(chunk));
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