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.
Matte black spray paint job to the primary bkt
。新收录的资料对此有专业解读
Гуменник рассказал о переживаниях перед финалом Гран-при России17:42
If you want to try it