• Source 
    1. #include <stdio.h>
    2. #include <stdlib.h>
    3.  
    4. int main()
    5. {
    6.     int r = 3, c = 4, i, j, count;
    7.  
    8.     int **arr;
    9.     arr = (int **)malloc(r * sizeof(int *));
    10.     for (i=0; i<r; i++)
    11.          arr[i] = (int *)malloc(c * sizeof(int));
    12.  
    13.     // Note that arr[i][j] is same as *(*(arr+i)+j)
    14.     count = 0;
    15.     for (i = 0; i <  r; i++)
    16.       for (j = 0; j < c; j++)
    17.          arr[i][j] = ++count;  // OR *(*(arr+i)+j) = ++count
    18.  
    19.     for (i = 0; i <  r; i++)
    20.       for (j = 0; j < c; j++)
    21.          printf("%d ", arr[i][j]);
    22.  
    23.    /* Code for further processing and free the 
    24.       dynamically allocated memory */
    25.  
    26.    return 0;
    27. }