Compilare: user.cpp: In function ‘int main()’: user.cpp:28:6: warning: variable ‘a’ set but not used [-Wunused-but-set-variable] {int a[201][201],q=1,n,ni,nni,nj,nnj,i1,in,j1,jn,j,i,minus1,plus1,minus11,plus11,v,ct=0,x=0,y=0,z=0,p,ct1=0,ct2=0,ct3=0,ct4=0; ^ user.cpp:28:84: warning: unused variable ‘ct’ [-Wunused-variable] {int a[201][201],q=1,n,ni,nni,nj,nnj,i1,in,j1,jn,j,i,minus1,plus1,minus11,plus11,v,ct=0,x=0,y=0,z=0,p,ct1=0,ct2=0,ct3=0,ct4=0; ^