A. Preprocessing (Done by OsmAnd when new maps are prepared):
Detecting e-bike battery fires, for example, is particularly difficult, since these can unfold suddenly. Some researchers are working on new ways of sensing smoke and fire, perhaps even more quickly than before. But, take note: any certified, working smoke alarm is better than nothing.，这一点在雷电模拟器官方版本下载中也有详细论述
3. 递归：对左右子数组递归执行1-2步，更多细节参见一键获取谷歌浏览器下载
Bonus: Scan with TruffleHog.