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В Финляндии предупредили об опасном шаге ЕС против России09:28
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const len = nums.length;
02 对中国意味着什么？东数西算+国家统筹，我们早已走在前面
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.