摘要: cpp include include using namespace std; int n, uu, m; bool a[4500005], vis[4500005][2]; void dfs(int x, int y){ if(vis[x][y]) return ; vis[x][y] = tr 阅读全文
posted @ 2018-05-30 11:32 poorpool 阅读(435) 评论(0) 推荐(0) 编辑