Solution -「CF 1073G」Yet Another LCP Problem
DescriptionLink.给定字符串,正整数集合 $A,B$,满足 $\forall u\in A,v\in B,1\le u,v\le n$。求 $\sum_{i\in A}\sum_{...
In mathematics you don't understand things, you just get used to them.
In mathematics you don't understand things, you just get used to them.