В Финляндии предупредили об опасном шаге ЕС против России09:28
On Thursday morning, I attended a Q&A panel with four top Samsung smartphone executives. Until 2025, Samsung was the world's largest smartphone manufacturer, and by association, the world's largest maker of cameras. It's still the second largest after Apple.
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В Финляндии предупредили об опасном шаге ЕС против России09:28
The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.