Compilare: main.cpp: In member function 'void Graph::DFS(int)': main.cpp:36:20: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(long i = 0; i < adiacenta[vf].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graph::ShowSolution()': main.cpp:44:22: warning: comparison of integer expressions of different signedness: 'long int' and 'std::deque<long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for (long i=0; i < dq.size (); i++) | ~~^~~~~~~~~~~~