A.a[4][1] B.a[2,1] C.a[4][5] D.a[4–1][5–5]
A.inta[][]; B.inta[][4]; C.inta[3][]; D.inta[3][4];
A.inta[6]={6*1}; B.inta[6]={1,,,3}; C.inta[6]={}; D.inta[6]=(0,0,0);