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.
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她說，雖然她相信報告確實揭示了某種「真實趨勢」，但外界反應讓她了解到，單靠統計數據仍無法呈現完整圖景。，详情可参考旺商聊官方下载
"Clearly this area needs further research to find out if it's causative or not."
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