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.
Aldi shop staff to receive two pay rises this year
。业内人士推荐搜狗输入法2026作为进阶阅读
從禮貌待人到假裝自己身處《星際迷航》（Star Trek，《星際爭霸戰》）的場景中，關於如何與聊天機器人對話的建議可謂五花八門，而且完全沒有用。以下這些才是真正有效的方法。
Фото: Сергей Булкин / ТАСС