93.8%152/162 picks
The algorithm maintains a running "best distance" that starts at infinity. As it walks the tree, it checks each visited point and updates the best distance if it finds something closer. Before recursing into a child node, it checks whether the closest possible point in that child's bounding box is farther than the current best. If so, the entire subtree gets pruned.
，详情可参考搜狗输入法2026
int count[10] = {0}; // 0-9共10个桶
声明函数时，枚举类型位于 description 和 type 之间：
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