Eroare de compilare: user.cpp:12:13: error: variable ‘std::ifstream cin’ has initializer but incomplete type ifstream cin("symmetricgraph2.in"); ^ user.cpp:13:14: error: variable ‘std::ofstream cout’ has initializer but incomplete type ofstream cout("symmetricgraph2.out"); ^ user.cpp: In function ‘void bfs()’: user.cpp:32:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[Nod].size(); ++ i) ^ user.cpp: In function ‘int fluxmax()’: user.cpp:47:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < v[n].size(); ++j) { ^