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.
第四节 妨害社会管理的行为和处罚。同城约会对此有专业解读
，推荐阅读heLLoword翻译官方下载获取更多信息
According to the latest best estimates by researchers from University College London, about 1.6 million UK adults have used weight-loss injections in the past year – mostly bought through private prescriptions rather than on the NHS.，推荐阅读91视频获取更多信息
Shoppers are avidly searching for jackets that cover half your face – so much sales are up 1,000% year on year at John Lewis.
Фото: Кирилл Зыков / РИА Новости