Дарья Устьянцева (редактор отдела «Мир»)
有前款第一项行为，在成熟前自行铲除的，不予处罚。
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第一百三十二条 公安机关及其人民警察办理治安案件，禁止对违反治安管理行为人打骂、虐待或者侮辱。
A quadtree does the same thing for two-dimensional space. It takes a rectangular region and divides it into four equal quadrants: northwest, northeast, southwest, southeast. If a quadrant has too many points in it, it subdivides again and again. Each subdivision creates smaller and smaller cells where points are densely packed.