Compilare: main.cpp: In member function 'void graf::biconex(unsigned int, int*, int*, unsigned int&, std::stack<std::pair<unsigned int, unsigned int> >&, std::vector<unsigned int>&)': main.cpp:292:47: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 292 | while(aux1!=nod_curent || aux2!=this->lista_vecini[nod_curent][i].first); | ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::havelhakimi()': main.cpp:409:33: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 409 | for (unsigned int i=0; i<=vmax; ++i) | ~^~~~~~ main.cpp:410:37: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 410 | for (unsigned int j=0; j<ap[i]; ++j) | ~^~~~~~ main.cpp: In member function 'void graf::disjoint()': main.cpp:600:29: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 600 | for (unsigned int i=0; i<=n; ++i) | ~^~~ main.cpp: In member function 'void graf::dijkstra()': main.cpp:669:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 669 | for (int i=0; i<this->lista_vecini[nod].size(); ++i) | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::Bellman_Ford()': main.cpp:725:42: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] 725 | if (nrCoada[nod_dest]>this->n) | ~~~~~~~~~~~~~~~~~^~~~~~~~