摘要: T1: #include<bits/stdc++.h> using namespace std; const int N=25010; const int K=30; const int MOD=1e9+7; int f[N][K][K][2],g[N][K][K][2],n,k; int R[N] 阅读全文
posted @ 2020-10-06 16:07 zdxx 阅读(101) 评论(0) 推荐(1) 编辑