Compilare: main.cpp: In function 'void BFS(std::vector<std::vector<int> >&, int, int)': main.cpp:55:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(int i = 0; i < listaAd[front].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:105:10: warning: unused variable 'aux' [-Wunused-variable] 105 | bool aux; | ^~~