本来就是暴力题吧 by a2lyaXNhbWUgbWFyaXNh @ 2023-01-08 21:39:44
按数据范围看,大概可能也许是O(nm)或O(n²) (我也是蒙的) by testbot_518785 @ 2023-04-26 20:33:47