01  #include<stdio.h>
02  
03  int main()
04  {
05  int a=10; //integer variable
06  
07  int *p;
08  
09  int **q;
10  
11  int ***r;
12  
13  p=&a; // address of 'a'
14  
15  q=&p; // address of 'p'
16  
17  r=&q; // address of 'q'
18  
19  printf("Value of a : %d nn",a);
20  printf("Value of *p : %d nn",*p);
21  printf("Value of **q : %d nn",**q);
22  printf("Value of ***r : %d nn",***r);
23  
24  /*
25  
26  a <- *p <- **q <- ***r
27  
28  */
29  
30  return 0;
31  }

 
 OUTPUT :
 
 Value of a : 10
 
 Value of *p : 10
 
 Value of **q : 10
 
 Value of ***r : 10