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.
최현석 레스토랑 “노출 의상 자제해달라”…얼마나 심했길래，更多细节参见Line官方版本下载
* 时间复杂度：O(n)，空间复杂度：O(n)。业内人士推荐91视频作为进阶阅读
但除此之外，这两款「普通杯」的吸引力依然主要取决于折扣力度，以及二手价格。
Why am I writing this today?