The algorithm also visits children in order of distance to the query point. This means it checks the most promising quadrants first, which tends to find a good candidate early and enables aggressive pruning of the remaining quadrants. Without this ordering, the algorithm would still produce the correct result, but it would prune fewer nodes.
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Episode details，详情可参考51吃瓜
“This is just their normal space, where they connect,” Boeldt said, adding any attempts are “going to be kind of like whack a mole,” in which underage users will simply move on to the next platform.