Compilare: main.cpp: In member function 'void graf::getvecini()': main.cpp:54:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for (int i=1; i<this->lista_vecini.size(); ++i) | ~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:57:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for (int j=0; j<this->lista_vecini[i].size(); ++j) | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::DFS()': main.cpp:74:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | while (index<coada.size()) | ~~~~~^~~~~~~~~~~~~ main.cpp:77:24: 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<this->lista_vecini[nod_curent].size(); ++i) | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~