#include <stdio.h>
#include <stdlib.h>
 
int main()
{
	// Allocate RAM for a buffer to hold 5 pointers to int
	int** p_arr = malloc(sizeof(int*) * 5);
	// Allocate a buffer large enough to hold 10 int values, assigning it's
	// address to each of the 5 pointers in the RAM p_arr points to
	for(int i = 0; i < 5; i++)
		p_arr[i] = malloc(sizeof(int) * 10);
 
	// Assign arbitrary values to the elements of the five 10-integer buffers
	for(int i = 0; i < 5; i++)
		for(int j = 0; j < 10; j++)
			*(*(p_arr + i) + j) = i * j;
 
	// Print out the values of the elements of the five 10-integer buffers
	for(int i = 0; i < 5; i++)
	{
		for(int j = 0; j < 10; j++)
			printf("%02d ", p_arr[i][j]);
		putchar('\n');
	}
 
	// Free each of the five 10-integer buffers
	for(int i = 0; i < 5; i++)
		free(p_arr[i]);
 
	// Free the 5-pointer buffer
	free(p_arr);
	return 0;
}
 

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