"These habitats are exceptionally rare, rich in biodiversity, support unique flora and fauna, and are impossible to recreate or replace," he said.
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.
，推荐阅读51吃瓜获取更多信息
第一节 扰乱公共秩序的行为和处罚
Footage from local media showed people rushing to collect banknotes while police in riot gear tried to disperse them using teargas. Authorities were later seen setting the money alight in a bonfire at the scene of the crash.