Compilare: user.cpp: In function ‘void dijkstra()’: user.cpp:49:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<G[nod].size();j++) ^ user.cpp:60:27: warning: pointer to a function used in arithmetic [-Wpointer-arith] up[dim]; ^ user.cpp:60:27: warning: value computed is not used [-Wunused-value] user.cpp:60:27: warning: statement has no effect [-Wunused-value]