A.int *p=a; B.int **p=a; C.int *p[20]=a; D.int(*p)[20]=a;
A.char *p=s; B.char *p=&s; C.char *p;p=*s; D.char *p;p=&s;
A.char s1[]="abcdef"; B.char s2[4]="abcd"; C.char s3[2][3]={"abc","xyz"}; D.char s4[4][]={’a’,’x’,’s’,’t’};