Фото: Кирилл Каллиников / РИА Новости
Witnesses in Kabul and Kandahar, the southern Afghan city, reported explosions and jets overhead until dawn, while the Taliban government said later that Pakistani surveillance aircraft were still flying over Afghanistan.
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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.
help users save time by automating repetitive tasks