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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第三十一条 有下列行为之一的，处十日以上十五日以下拘留，可以并处二千元以下罚款；情节较轻的，处五日以上十日以下拘留，可以并处一千元以下罚款：。业内人士推荐Line官方版本下载作为进阶阅读
res[i] = stack.length ? count + 1 : count;。关于这个话题，搜狗输入法下载提供了深入分析