Жители Санкт-Петербурга устроили «крысогон»17:52
The quadtree is the two-dimensional case of a broader family of space-partitioning data structures. Octrees extend the same idea to three dimensions (splitting cubes into eight children), KD-trees use alternating axis-aligned splits (splitting along x, then y, then x again), and R-trees group nearby objects into bounding rectangles. Each variant makes different tradeoffs between construction time, query speed, and update cost.
，这一点在heLLoword翻译官方下载中也有详细论述
// it is ok to write more data，推荐阅读Line官方版本下载获取更多信息
日产 N7 只做了价格调整，虽然此次推出的车型名为「青春版」，实则车辆配置几乎未变，只是价格在原来基础上下调了 1 万元。