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.
Ginger's software helps you identify and correct common grammatical mistakes, such as consecutive nouns, or contextual spelling correction.
，更多细节参见搜狗输入法2026
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