Eroare de compilare: main.cpp: In member function 'void graf::muchii_critice(int, int, std::vector<std::vector<int> >&)': main.cpp:374:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 374 | for(int i = 0; i < h2[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~ main.cpp: In static member function 'static std::vector<std::vector<int> > graf::criticalConnections(int, std::vector<std::vector<int> >&)': main.cpp:400:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 400 | for(int i = 0; i < connections.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:405:28: error: cannot call member function 'void graf::muchii_critice(int, int, std::vector<std::vector<int> >&)' without object 405 | muchii_critice(1, 0, h2); | ^ main.cpp:406:12: error: invalid use of member 'graf::muchii' in static member function 406 | return muchii; | ^~~~~~ main.cpp:23:27: note: declared here 23 | vector< vector<int> > muchii; | ^~~~~~ Non zero exit status: 1