Compilare: user.cpp: In function ‘void DF(int)’: user.cpp:33:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<A[nod].size();i++) ^ user.cpp:38:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<A[nod].size();i++) ^ user.cpp:47:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Noduri.size();i++) ^ user.cpp:50:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Noduri.size();i++) ^