Compilare: main.cpp: In member function 'void graf::havelhakimi()': main.cpp:383:33: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 383 | for (unsigned int i=0; i<=vmax; ++i) | ~^~~~~~ main.cpp:384:37: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 384 | for (unsigned int j=0; j<ap[i]; ++j) | ~^~~~~~ main.cpp: In member function 'void graf::disjoint()': main.cpp:575:29: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 575 | for (unsigned int i=0; i<=n; ++i) | ~^~~ main.cpp: In member function 'void graf::dijkstra()': main.cpp:654:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 654 | for (int i=0; i<lista_vecini[nod].size(); ++i) | ~^~~~~~~~~~~~~~~~~~~~~~~~~