Compilare: user.cpp: In member function ‘void Dijkstra::dijkstra()’: user.cpp:71:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<A[1].size();i++) ^ user.cpp:97:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<A[nod].size();i++) ^ user.cpp:62:9: warning: unused variable ‘nr’ [-Wunused-variable] int nr=0; ^ user.cpp:77:10: warning: unused variable ‘contor’ [-Wunused-variable] int contor=1; ^