Любовь Ширижик (Старший редактор отдела «Силовые структуры»)
Tired of pushing and lifting your vacuum all over the house? Avoiding the cables and never being able to keep on top of the dust? Well, it's time for a robot vacuum. Take manual vacuuming off your to-do list forever and let the robot do the work.，更多细节参见同城约会
他表示，目前机器人整体技术水平接近「10 岁小孩」，大规模应用预计最快 3—5 年可实现。，详情可参考safew官方版本下载
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* 时间O(n) 空间O(n)（理论最优，无冗余计算/存储）