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.
00:01, 28 февраля 2026Россия
，详情可参考safew官方下载
cursor.execute(
for (let i = 2 * len - 1; i = 0; i--) {