摘要: 农夫约翰有N(2 include include using namespace std; const int maxn = 80005; int n, m, head[maxn], len= 1, dfn[maxn], tot= 1, headq[maxn], vis[maxn], dis[max 阅读全文
posted @ 2020-05-01 22:05 poozhai 阅读(153) 评论(0) 推荐(0) 编辑