In 1986, the Challenger spacecraft suffered a catastrophic failure seconds after launching, killing all seven crew members on board.
МИД Азербайджана отреагировал на атаки иранских дронов14:03
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Карина Черных (Редактор отдела «Ценности»)
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.