After your base implementation is complete, you MUST:
* @return {number} - 最短无序连续子数组的长度，排序该子数组后整个数组升序
，这一点在同城约会中也有详细论述
self.base_url = "https://example.com"
Quadtrees aren't limited to point data. They can also partition regions of continuous data, like the pixels of an image.