Compilare: user.cpp: In function ‘void elim(int)’: user.cpp:14:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<fiu[nod].size();j++) ^ user.cpp: In function ‘void rez()’: user.cpp:43:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<v[v[i][0]].size()&&ok==0;j++) ^