Compilare: main.cpp: In destructor 'Graf::~Graf()': main.cpp:40:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for (int i = 0; i < adiacenta.size(); i++) //eliberez spatiul alocat vetorului de vectori, stergand linie cu linie elementele | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In member function 'void Graf::BFS(int)': main.cpp:56:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for (int i = 0; i < adiacenta[nod_curent].size(); i++) //iau din lista de adiacenta nodurile vecine | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:64:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | for (int i = 0; i < cost_vizita.size(); i++) //afisez costul pentru fiecare nod | ~~^~~~~~~~~~~~~~~~~~~~