Compilare: main.cpp: In member function 'void Graf::afisare(std::ostream&)': main.cpp:50:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for (int j = 0; j < listaAd[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs1(int, std::vector<int>&, std::stack<int>&)': main.cpp:66:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | for (int i = 0; i < listaAd[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::dfs2(int, std::vector<int>&, std::vector<std::vector<int> >, std::vector<std::vector<int> >&, int)': main.cpp:77:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for (int i = 0; i < listaTr[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::ctc(std::vector<std::vector<int> >, std::ostream&)': main.cpp:105:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 105 | for (int i = 0; i < rez.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:107:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | for (int j = 0; j < rez[i].size(); j++) | ~~^~~~~~~~~~~~~~~