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.
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，详情可参考搜狗输入法2026
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The fun and well-photographed interview in Softalk in 1983 starts like this:，更多细节参见爱思助手下载最新版本