Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04
BEST FOR SINGLE GAME
。同城约会是该领域的重要参考
我已经为整个流程准备好了 Notebook：
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.