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.
第二百九十六条 船舶所有权，适用船旗国法律。
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（一）战争、武装冲突、恐怖活动或者不可抗拒的自然灾害；
In response to the emerging threats, Google has been rapidly rolling out deeper Gemini integrations into Chrome, including its own set of agentic features for autonomous tasks.
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