The spatial view (the grid of rectangles) and the tree view (the hierarchy of nodes) represent the same structure. Searching for a point means walking down the tree: at each node, you check which of the four children contains your target coordinate and recurse into that child. You never visit the other three.
公安部会同相关部门深入调研网络犯罪形势、特点，结合网络犯罪打击整治中的难点问题，研究形成了《网络犯罪防治法（征求意见稿）》。期间，公安部多轮次征求相关部门意见，召开法律研讨会，邀请科研院所、互联网企业专家进行专题研讨，对《网络犯罪防治法（征求意见稿）》进行修改完善。
，推荐阅读safew官方版本下载获取更多信息
ВСУ запустили «Фламинго» вглубь России. В Москве заявили, что это британские ракеты с украинскими шильдиками16:45。Line官方版本下载是该领域的重要参考
The ultimate goal, she says, is robots that are far more "graceful" than those of today. "Robots […] have this clunkiness and heaviness," she says, "which is so different from the way we move."，推荐阅读旺商聊官方下载获取更多信息