Compilare: user.cpp: In function ‘int main()’: user.cpp:9:11: warning: unused variable ‘i’ [-Wunused-variable] int n,i,j,nrzile,cont=0,cn,y,zi,nr,nrdin,nn,poz=0; ^ user.cpp:9:13: warning: unused variable ‘j’ [-Wunused-variable] int n,i,j,nrzile,cont=0,cn,y,zi,nr,nrdin,nn,poz=0; ^ user.cpp:68:23: warning: ‘zi’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<poz<<" "<<zi; ^