arr[k++] = arr[mid + (j++)];
Diagrams from redesign 3, hand-written SVG，更多细节参见heLLoword翻译官方下载
Display the source diff，更多细节参见im钱包官方下载
金融分析师的情况与此类似。基于岗位任务结构与已公开工具能力的匹配来看，投行初级分析师的日常任务存在被自动化的风险。
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.