A quadtree reduces this: rebuild the tree each frame, and for each object, query only the nearby region. Objects in distant quadrants are never compared.
Just four years ago, One Nation received just 8,077 lower house first-preference votes out of more than 3.6m cast in Victoria – equivalent to 0.22% of the total – and won a single seat in the upper house.
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入园的选择很怕孩子排不上想去的幼儿园，所以从2岁开始就各方打听家附近的幼儿园情况，然后我总结了一下选择优先级，给有宝宝的朋友们参考一下：，这一点在safew官方版本下载中也有详细论述
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