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.
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。关于这个话题，WPS下载最新地址提供了深入分析
// process chunks
Parameter Counting
演說頻頻被共和黨議員的歡呼打斷，但在特朗普談到關稅時，引發民主黨低語，以及共和黨議員的不自在沉默——許多共和黨人對關稅的經濟成本感到不安，也擔心其不受歡迎會影響選舉前景。