https://www.luogu.com.cn/problem/AT_arc142_e 他的充要条件是是什么: a i , a j ≥ m i n ( b i , b j ) a_i,a_j\ge min(b_i,b_j) ai,aj≥min(bi,bj)存在 a i ≥ m a x ( b i , b j ) a_i\ge max(b_i,b_j) ai≥max(bi,bj)
第一个条件直接预处理一…
事出有因 I assumed that I install verilator via git clone its source, so I need to set the export VERILATOR_ROOT.
At first, due to laziness, I just copy the code directly to my ubuntu. so stupid I am!!!
Then, I recoginzed that the pathname is not real, …