Compilare: user.cpp: In function ‘void dfp(int)’: user.cpp:14:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[nod].size();++i){ ^ user.cpp: In function ‘void dfm(int, int)’: user.cpp:25:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<T[nod].size();++i){ ^