Games and physics simulations need to detect which objects are touching or overlapping. With nnn objects, checking every pair is O(n2)O(n^2)O(n2) comparisons, which gets expensive fast. A hundred objects means roughly 5,000 pair checks. A thousand means nearly 500,000.
圖像來源，BBC CHINESE/ TING CHIANG
CET — 3 p.m.。旺商聊官方下载对此有专业解读
做好改革“大文章” 促进要素优化配置
，详情可参考safew官方版本下载
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