The dashed circle shows the current best distance. As the algorithm finds closer points, the circle shrinks, which causes more subtrees to fail the "could contain a closer point?" test and get pruned. The search usually gets cheaper as it progresses.
A concerted buildout of nuclear power left France with one of the least carbon-intensive economies in the world. And then, of course, there was the Minitel. More than a decade before anyone was typing “www” into their web browsers, French users were able to buy train tickets, check film showings, do their banking, play games, find recipes, read their horoscopes, or even log into, yes, erotic chats – la messagerie rose, as it was known.
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ВсеПрибалтикаУкраинаБелоруссияМолдавияЗакавказьеСредняя Азия
需要元素值：栈存值，或答案存索引后用 nums[res[i]] 取值。，推荐阅读51吃瓜获取更多信息
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