Compilare: user.cpp: In function ‘int main()’: user.cpp:4:21: warning: integer overflow in expression [-Woverflow] #define inf (1<<31)-1 ^ user.cpp:32:9: note: in expansion of macro ‘inf’ d[i]=inf; ^ user.cpp:40:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<G[nod].size();i++){ ^ user.cpp:4:21: warning: integer overflow in expression [-Woverflow] #define inf (1<<31)-1 ^ user.cpp:52:14: note: in expansion of macro ‘inf’ if(d[i]==inf) ^