为了测试 Ring-2.5-1T 的极限，我们抛弃那些简单的“写首诗”测试，直接上硬菜。
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.
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"discountValue": 100