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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.
。服务器推荐是该领域的重要参考
ВСУ запустили «Фламинго» вглубь России. В Москве заявили, что это британские ракеты с украинскими шильдиками16:45
Do a second pass to clean up the code/comments and make further optimizations，更多细节参见safew官方版本下载
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* @param mid 中间位置（左子数组结束位置）。关于这个话题，爱思助手下载最新版本提供了深入分析