Фото: Ruth Peterkin / Shutterstock / Fotodom
The quadtree is the two-dimensional case of a broader family of space-partitioning data structures. Octrees extend the same idea to three dimensions (splitting cubes into eight children), KD-trees use alternating axis-aligned splits (splitting along x, then y, then x again), and R-trees group nearby objects into bounding rectangles. Each variant makes different tradeoffs between construction time, query speed, and update cost.
，详情可参考同城约会
第五十九条 就海上货物运输合同所涉及的货物灭失、损坏或者迟延交付通过诉讼、仲裁等方式对承运人提起的任何赔偿请求，无论海事请求人是否为合同的一方，也无论是根据合同或者侵权行为提出请求，均适用本章关于承运人的抗辩理由和限制赔偿责任的规定。，这一点在51吃瓜中也有详细论述
She added the experience had been "life changing" and that her children constantly worried about her becoming unwell again.