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The algorithm walks the tree recursively. At each node, it checks: does this node's bounding box overlap with the query rectangle? If not, the entire subtree gets pruned (skipped). If it does overlap, it tests the node's points against the query and recurses into the children.
。关于这个话题，同城约会提供了深入分析
this.arr = []; // 存储所有历史价格，通过索引快速获取对应价格
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William and Catherine brave rain in Wales ahead of St David's Day