A centralized protection unit
是的，你可能觉得自己为了学习编程付出了很多努力，现在机器在替你完成。
。safew官方版本下载是该领域的重要参考
Node *newNode = (Node*)malloc(sizeof(Node));，推荐阅读heLLoword翻译官方下载获取更多信息
Now that we can build the tree, let's use it to search. Finding a specific point means starting at the root and asking: which child quadrant contains this coordinate? Then you recurse into that child and ask again. Each level of the tree cuts the search space by roughly three-quarters.