摘要: 视频链接:https://www.bilibili.com/video/BV1BG41177Ff/ #include <iostream> using namespace std; const int N=2010, P=1e9+7; int C[N][N]; void init(){ for(in 阅读全文
posted @ 2022-10-07 21:31 董晓 阅读(578) 评论(0) 推荐(0)