Eroare de compilare: main.cpp: In member function 'void Graph::topologicalSort()': main.cpp:241:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<bool>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 241 | for (int node = 1; node < visited.size(); node++) { | ~~~~~^~~~~~~~~~~~~~~~ main.cpp:248:9: error: 'out' was not declared in this scope 248 | out << stack.top()<<' '; | ^~~ Non zero exit status: 1