Pointer in C and C++ Qus 6

 #include<stdio.h>

#include<iostream.h>

#include<conio.h>

int main()

{

clrscr();

int A[3][3]={{1,2,3},{4,5,6},{7,8,9}};

int a=5;

int *p;               //pointer to int

p=&a;

int **q;              //pointer to pointer to int

q=&p;

cout<<A<<endl;           //Base Add

cout<<p<<endl;

int (*r)[3];

r=A;

/*cout<<A[0]<<endl;          //Base Address

cout<<A+1<<endl;

cout<<A[0]+1<<endl;

cout<<A[0][0]<<endl;

cout<<A[1]<<endl;

cout<<A[1]-A[0]<<endl;

cout<<A[2]<<endl;

*/

cout<<A[0][0]<<endl<<*(*(A+0)+0)<<endl;    //*(*(A+i)+j)  =A[i][j]

cout<<A[0]<<endl<<*(A+0)<<endl;            //*(A+i)=A[i]

cout<<A[1]<<endl<<*(A+1);

int *s;

s=&A[0][0];

getch();

return 0;

}