dynamic 2D array question

With a dynamic 2D array:

int *arr;

arr = int *calloc(maxrow*maxcol, sizeof(int));

how do you reference the different elements (alternate notation arr[row][col] will not compile). Is pointer arithmetic the solution?

Code:

int **arr;
arr = malloc( maxrow * sizeof(int*) );
for ( i = 0 ; i < maxrow ; i++ ) arr[i] = calloc( maxcol, sizeof(int) );

Then you can use arr[row][col] notation

Awesome. Thanks Salem.