"Astroturfing", is another issue, where the true sponsor of a campaign is hidden behind a grassroots initiative.
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const view = byobRequest.view!;，详情可参考雷电模拟器官方版本下载
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.