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。Line官方版本下载对此有专业解读
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.
I submitted a review request with a brief clarification. Two hours later, an email arrived: the domain was cleared. The red banner vanished instantly.