Dereferenceof ( Pointer to array of pointers to arrays of pointers to arrays of integers) to get the integeres at the end

I want to declare Pointer ptr0 that points to array1 of pointers to arrays of pointers that have elements of pointers that points to another arrays of pointers to arrays of integers that consists of integer elements.

Note: Each array consist of three elements.

here is my approach:-

//C99

#include <stdio.h>
#include <stdlib.h>
int main()
{



/* Level 3 */
int arrays_int_3_1_1[3] = {0,1,2};
int arrays_int_3_1_2[3] = {3,4,5};
int arrays_int_3_1_3[3] = {6,7,8};
    
int arrays_int_3_2_1[3] = {9,10,11};
int arrays_int_3_2_2[3] = {12,13,14};
int arrays_int_3_2_3[3] = {15,16,17};

int arrays_int_3_3_1[3] = {18,19,20};
int arrays_int_3_3_2[3] = {21,22,23};
int arrays_int_3_3_3[3] = {24,25,26};


/* Level 2 */
void *arrays_2_1[3] = {(void*)arrays_int_3_1_1,(void*)arrays_int_3_1_2,(void*)arrays_int_3_1_3};
void *arrays_2_2[3] = {(void*)arrays_int_3_2_1,(void*)arrays_int_3_2_2,(void*)arrays_int_3_2_3};
void *arrays_2_3[3] = {(void*)arrays_int_3_3_1,(void*)arrays_int_3_3_2,(void*)arrays_int_3_3_3}; 

/* Level 1*/
void **array1[3] = {arrays_2_1,arrays_2_2,arrays_2_3};

/* Level 0*/
void ***ptr0 = array1;

/*-----------------------------*/

for (int i = 0 ; i <27 ; i++)
{
    // Question here..
	printf("%d \n", <??? How to do the dereference to access each element ???>);
}

}

Quesiton is >> How to do the dereference to access each element

ptr0 points to the first element of array1 (array1[0]), and ptr0 can therefore be used as an alias of array1.

The elements of array1 each point to the first element of one of the arrays_2_*, and can therefore be used as aliases for these.

Each element of each of the arrays_2_* is a pointer to the first element of one of the arrays_3_*, cast to type void *. Casting back to type int * will yield an alias for the corresponding arrays_int_3_*.

There is more than one way to perform the dereferencing, but you're probably looking for something along these lines:

    int j = ((int *)ptr0[l][m])[n];
    //              \__a__/
    //              \___b____/
    //      \____________c____/
    //      \_____________d______/

    //  a: one element of array1 (a void **)
    //  b: one element of one of the arrays_2_* (a void *)
    //  c: (b), converted to type int *; this points into one of the arrays_int_3_*
    //  d: one element of one of the arrays_int_3_*

How to convert a single integer i, in the range 0 ... 26, to a triple l, m, n, each in the range 0 ... 2, is left as an exercise.

Not sure why you are casting them to void* but I cast them back to print them.

#include <stdio.h>
#include <stdlib.h>
int main()
{



/* Level 3 */
int arrays_int_3_1_1[3] = {0,1,2};
int arrays_int_3_1_2[3] = {3,4,5};
int arrays_int_3_1_3[3] = {6,7,8};
    
int arrays_int_3_2_1[3] = {9,10,11};
int arrays_int_3_2_2[3] = {12,13,14};
int arrays_int_3_2_3[3] = {15,16,17};

int arrays_int_3_3_1[3] = {18,19,20};
int arrays_int_3_3_2[3] = {21,22,23};
int arrays_int_3_3_3[3] = {24,25,26};


/* Level 2 */
void *arrays_2_1[3] = {(void*)arrays_int_3_1_1,(void*)arrays_int_3_1_2,(void*)arrays_int_3_1_3};
void *arrays_2_2[3] = {(void*)arrays_int_3_2_1,(void*)arrays_int_3_2_2,(void*)arrays_int_3_2_3};
void *arrays_2_3[3] = {(void*)arrays_int_3_3_1,(void*)arrays_int_3_3_2,(void*)arrays_int_3_3_3}; 

/* Level 1*/
void **array1[3] = {arrays_2_1,arrays_2_2,arrays_2_3};

/* Level 0*/
void ***ptr0 = array1;

/*-----------------------------*/

for (int i = 0 ; i < 27 ; i++)
{
    printf("%d \n", ((int*)(ptr0[i/9])[(i/3)%3])[i%3]);
}

}