Compilare: main.cpp: In member function 'bool Graf::havelHakimi(std::vector<int>)': main.cpp:285:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 285 | if (x > grade.size()) | ~~^~~~~~~~~~~~~~ main.cpp: In member function 'std::vector<int> Graf::dijkstra()': main.cpp:382:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 382 | for (int i = 1; i < listaCosturi[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~