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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在半管訓練中，她展現出王者氣勢，以第五名成績晉級週六決賽，同為斯坦福大學學生的英國選手佐伊·阿特金（Zoe Atkin）則位居榜首。
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