The ONS noted that Neet figures are volatile because of a smaller population compared to figures like unemployment.
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.。关于这个话题，旺商聊官方下载提供了深入分析
// 原因：先处理右侧元素，把结果存在栈里，供左侧元素直接使用，这一点在爱思助手下载最新版本中也有详细论述
Виктория Кондратьева (Редактор отдела «Мир»)