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.
It's an odd mismatch, fed by the star's lyrics, which find him in an unsettled state of mind.
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Get our breaking news email, free app or daily news podcast。业内人士推荐搜狗输入法作为进阶阅读
prefix = os.path.commonprefix([abs_directory, abs_target])。体育直播是该领域的重要参考
while state != "closing":