三是始终坚持精准方略。贫困的发生演变有其自身特点和规律，一把钥匙开一把锁，必须从实际出发，实施针对性减贫方略和政策工具。精准扶贫方略要求做到扶贫对象精准、措施到户精准、项目安排精准、资金使用精准、因村派人精准、脱贫成效精准，实行对症下药、精准滴灌、靶向治疗，真正拔除穷根，彻底摆脱贫困。中国创造的脱贫奇迹，充分证明了精准方略是减贫的制胜法宝。
第二个动作是 「善用实况照片（Live Photo）」。
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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.