Compilare: user.cpp: In member function ‘dist dist::operator=(dist)’: user.cpp:31:5: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void dijkstra()’: user.cpp:45:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0 ; i < adj[nod].size(); i++) ^