The spatial view (the grid of rectangles) and the tree view (the hierarchy of nodes) represent the same structure. Searching for a point means walking down the tree: at each node, you check which of the four children contains your target coordinate and recurse into that child. You never visit the other three.
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36
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Today's actuators, even the state-of-the-art ones, are still largely made from metals, hard plastics and electronics. But there are other ideas around. Tolley and his colleagues have been working on a very different approach.
Раскрыты подробности похищения ребенка в Смоленске09:27
prevFleetTime = currentTime; // 更新上一个车队的时间为当前时间