The pruned nodes (in red) represent entire regions of space that the algorithm never examines. The points inside those regions are never checked. Compare the "Nodes Visited" count to the total number of points. The quadtree is doing far less work than a brute-force scan.
这套组合拳下来就很凶，华强北的成本结构（ 价格能打 ），外贸起家的供货和品控（ 质量不 差），包邮退的承诺（ 兜底 ）。
，更多细节参见Line官方版本下载
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