Eroare de compilare: user.cpp:14:13: error: variable ‘std::ifstream cin’ has initializer but incomplete type ifstream cin( (file + ".in").c_str() ); ^ user.cpp:15:14: error: variable ‘std::ofstream cout’ has initializer but incomplete type ofstream cout( (file + ".out").c_str() ); ^ user.cpp:19:24: warning: integer overflow in expression [-Woverflow] const int oo = (1<<31)-1; ^ user.cpp:21:9: error: ‘vector’ does not name a type typedef vector<int> Graph[MAXN]; ^ user.cpp:22:9: error: ‘vector’ does not name a type typedef vector<int> :: iterator It; ^