The tree is rebuilt every frame. For scenes of this scale, quadtree construction is fast enough to rebuild from scratch each frame, though larger simulations may benefit from incremental updates. Each particle queries its neighborhood for potential collisions, typically checking only 5 to 15 candidates instead of all 40. Red highlights indicate colliding pairs.
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office did yet another round of arithmetic to produce the bank's overall。关于这个话题，WPS官方版本下载提供了深入分析
输入：prices = [8,4,6,2,3]