Compilare: main.cpp: In function 'int bfs(int)': main.cpp:17:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for(int j=0;j<V[nod].size();j++) | ~^~~~~~~~~~~~~~ main.cpp:28:1: warning: no return statement in function returning non-void [-Wreturn-type] 28 | } | ^