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Мир Российская Премьер-лига|19-й тур
。雷电模拟器官方版本下载是该领域的重要参考
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.
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