Compilare: user.cpp: In function ‘int cauta(int, int)’: user.cpp:11:9: warning: variable ‘y’ set but not used [-Wunused-but-set-variable] int y; ^ user.cpp: In function ‘int main()’: user.cpp:45:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<c.size ();j++) b.push_back (c[j]); ^ user.cpp:50:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<b.size ();i++) fprintf (g,"%d ",b[i]); ^