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.
“我们做事情、干工作，如果做到了上有利于国家、下有利于人民；既符合国家和人民眼前利益的要求，又符合国家和人民长远利益的要求；既能促进经济社会发展，又能促进国家富强和人民幸福，那就做出了党和人民所需要的真正的政绩。”
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这一突破曾直接触发英伟达股价一度暴跌17%，单日市值蒸发6000亿美元，也让市场开始重新审视“算力需求永无止境”的合理性。
官方通报烤全羊「36 斤变 6.9 斤」调查结果：商家退一赔三
It's not yet clear why researchers decided to point Webb in its direction, but little is known about the nebula, including the mass of the star creating it. That matters because a more massive star could eventually explode as a supernova, while a smaller, sun-like star would keep shrugging off layers of material until only a dense core remains and cools over time.