Compilare: user.cpp: In function ‘void bfs(int, std::vector<std::vector<int> >, int*, int*)’: user.cpp:22:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<lista[node].size(); i++){ ^ user.cpp: In function ‘int main()’: user.cpp:60:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<lista[i].size(); j++){ ^ user.cpp:66:6: warning: variable ‘visited’ set but not used [-Wunused-but-set-variable] int visited[n]; ^ user.cpp:67:6: warning: variable ‘dist’ set but not used [-Wunused-but-set-variable] int dist[n]; ^