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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Where's the Trump phone? We're going to keep talking about it every week. We've reached out, as usual, to ask about the Trump phone's whereabouts, and have stopped getting a response. This week, thanks to a reader tip, we think we've found the original phone the T1 is based on.。业内人士推荐搜狗输入法下载作为进阶阅读
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