&& chmod 700 /home/${USERNAME}
Author(s): Hiroshi Mizuseki, Ryoji Sahara, Kenta Hongo
。业内人士推荐safew官方版本下载作为进阶阅读
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.
Green: Surfing terms