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.
Мощный удар Израиля по Ирану попал на видео09:41
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The funnel-neck jacket is boxy, generously cut and comes with a permanently popped collar, between 9cm and 14cm high running from clavicle to nose; high enough to cover your mouth, low enough to see out – just.
// 条件解读：栈非空 + 栈顶当前数 + 还有删除名额 → 弹出栈顶（移除大数）