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The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.
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And finally, Gecqua, the water-type lizard with eyes nearly the size of its head and lashes that deserve their own beauty sponsorship. Gecqua doesn't blink; it poses. It's wide-eyed but fierce, adorable but dramatic. If confidence were a starter stat, Gecqua would be maxed out.
鲜明提出“信念坚定、为民服务、勤政务实、敢于担当、清正廉洁”的新时代好干部标准，推动营造有利于干事创业的良好环境，习近平总书记多次强调坚持严管厚爱相结合，指引干部队伍健康成长，为党的事业兴旺发达提供坚强保证。