The pruned nodes (in red) represent entire regions of space that the algorithm never examines. The points inside those regions are never checked. Compare the "Nodes Visited" count to the total number of points. The quadtree is doing far less work than a brute-force scan.
“灵师”回忆，早期的小天才好友圈里，大家围绕人文历史、原生家庭等话题进行交流，纯粹是为了交友分享。但点赞功能推出后，隐形等级制度逐渐形成，点赞数量高的用户开始“歧视”低点赞用户，圈子氛围变得浮躁功利。“大家不再单纯交友，而是互相点赞、功利互换，只为提高名气。”
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Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36
The best advice I can give to a person starting a business is to stay focused, don’t be discouraged by naysayers and don’t get overwhelmed by the process — you’re bigger than it and you can handle more than you think. Focus on small daily tasks, tackle them consistently, and over time, you’ll realize you’ve built something far bigger than you ever imagined. And that feeling is incredible.