The tree starts as a single region covering the whole space. As points arrive, they get dropped into the region that contains them. When a region exceeds its capacity (the maximum number of points it can hold before splitting), the region divides into four children, and the existing points get redistributed.
的士里，当“妈咪”两个字从她嘴里冒出来时，的士司机的眼神迅速挪到后视镜上，又迅速挪开。Maggie姐旁若无人地对着电话大吐苦水，语气里掺杂着委屈、无奈以及一点点陶醉其中的表现欲——仿佛在强调她是从那个鼎盛时期走过来的人，她的记忆不是纸醉金迷也一定熠熠生辉，换句话说就是：见识过大场面。
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报道援引联合反恐小组一名不愿透露姓名的高级官员的话说，警方在邦迪滩两名枪手车内发现一面“伊斯兰国”旗帜。澳大利亚安全情报组织6年前就已在调查邦迪滩枪击案两名枪手之一的纳维德·阿克拉姆，他与“伊斯兰国”在悉尼的恐怖分子有密切联系。，更多细节参见51吃瓜
What surprised me was that this entire walk is fully hardware-driven -- no microcode involvement at all. The state machine reads the page directory entry, reads the page table entry, checks permissions, and writes back the Accessed and Dirty bits, all autonomously. Since it's hardware-driven, it runs in parallel with the microcode and needs its own memory bus arbitration -- the paging unit must share the bus with both data accesses from the microcode and prefetch requests from the instruction queue.
tasks = append(tasks, t)