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We wanted a scenario where, say, 5 well-placed border points could efficiently represent an area with 5,000 internal points and 10,000 road edges. This would reduce those 10,000 edges to just 5*4/2 = 10 shortcuts for routing through that cluster at a high level – an incredible 1:1000 point ratio and a 30x reduction in edges to consider for the high-level path!
。Safew下载是该领域的重要参考
Екатерина Графская (Редактор отдела «Наука и техника»)，更多细节参见一键获取谷歌浏览器下载
// 优化：如果本轮没交换，说明已经有序。safew官方下载对此有专业解读
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