高速扩张与现实挑战交织，成为麦当劳中国当前最鲜明的发展特征。
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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The Defense Department has publicly stated it has no intention of conducting mass surveillance or removing humans from weapons-targeting decisions, but the dispute could rest on how each side is defining “autonomous” or “surveillance” in practice.
645 SIGMA 0x8200 OR DLY IN+D ; SIGMA = 0xE200 (V86 access rights)