#include <iostream>

using namespace std ;
int main()
{
	int num  =   100  ;
	//A normal pointer ptr1
	int *ptr1;
	//This pointer ptr1 is a double pointer
	int **double_ptr;
	/* Assigning the address of variable num to the       * pointer ptr1       */
	ptr1 = &num   ;
	/* Assigning the address of pointer ptr1 to the       * pointer-to-pointer double_ptr       */
	double_ptr = &ptr1;        /* Possible ways to find value of variable num*/

	printf("\n Value of num is: %d", num);
	printf("\n Value of num using ptr1 is: %d", *ptr1);
	printf("\n Value of num using double_ptr is: %d", **double_ptr);


	/*Possible ways to find address of num*/
	printf("\n Address of num is: %p", &num);
	printf("\n Address of num using ptr1 is: %p", ptr1);
	printf("\n Address of num using double_ptr is: %p", *double_ptr);

	/*Find value of pointer*/
	printf("\n Value of Pointer ptr1 is: %p", ptr1);
	printf("\n Value of Pointer ptr1 using double_ptr is: %p", *double_ptr);

	/*Ways to find address of pointer*/
	printf("\n Address of Pointer ptr1 is:%p",&ptr1);
	printf("\n Address of Pointer ptr1 using double_ptr is:%p",double_ptr);


	/*Double pointer value and address*/
	printf("\n Value of Pointer double_ptr is:%p",double_ptr);
	printf("\n Address of Pointer double_ptr is:%p",&double_ptr);

	return 0;
}