#include <stdio.h>

int main ()
{
    int  x[] = {1, 2, 3};
    int *ptr;
    ptr = x + (sizeof(x) / sizeof(x[0])) - 1;

    for (int i = 0; i < 3; i++)
    {
        printf("Address of var[%d] = %x\n", i, ptr );
        printf("Value of var[%d] = %d\n", i, *ptr );

        /* move to next element*/
        ptr--;
    }

    int a[5][5][5], num = 1;

    for(int i = 0; i < 5; i++)
    {
        for(int j = 0; j < 5; j++)
        {
            for(int k = 0; k < 5; k++)
            {
                a[i][j][k] = num;
                num++;
            }
        }
    }

    //a[2][4][1]

    printf("Test %d\n", a[2][4][1]);
    printf("Test %d\n", *(*(*(a+2)+4)+1));

    int r, c;
    printf("Enter number of rows: ");
    scanf("%d", &r);
    printf("Enter number of columns: ");
    scanf("%d", &c);

    int **arr = (int **)malloc(r * sizeof(int *));

    for (int i = 0; i < r; i++)
    {
        *(arr+i) = (int *)malloc(c * sizeof(int));
    }

    for(int i = 0; i < r; i++)
    {
        for(int j = 0; j < c; j++)
        {
            *(arr + i*c + j) = i + j;
            printf("%d ", *(arr + i*c + j));
        }
        printf("\n");
    }

    return 0;
}