Now that we can build the tree, let's use it to search. Finding a specific point means starting at the root and asking: which child quadrant contains this coordinate? Then you recurse into that child and ask again. Each level of the tree cuts the search space by roughly three-quarters.
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，这一点在服务器推荐中也有详细论述
治安案件的管辖由国务院公安部门规定。
If it’s about work, and you want to discuss something in more length and detail, consider an in-person meeting, a phone call, or email instead.