$10^9$本来就能跑吧。。。并且您可能加了一些break啥的常数很小
by Remake_ @ 2020-10-01 09:11:55
%学长大佬
by Eason2009 @ 2020-10-01 09:15:36
@[jinhaoxian](/user/51120) %%%
by liuyongle @ 2020-10-01 09:26:29
@[jinhaoxian](/user/51120) 我理论 $O(n^3m)$ 还过了...跑的飞快
by chen_yy @ 2020-11-23 18:53:22