#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <malloc.h>
#define N 4

void print(int **data, int size)
{
    int i,j;
    for (i=0;i<N;i++)
    {
        for (j=0;j<size;j++)
        {
            printf("%i|", data[i][j]);
        }
        printf("\n");
    }

}

int main(void)
{
    setbuf(stdout, NULL);
    int **array;
    unsigned int i,j;

    int size = 10;

    array = (int** )malloc(sizeof(int*) * N);
    for (i=0;i<N;i++)
    {
        array[i] = (int *)malloc(sizeof(int) * size);
    }

    for (i=0;i<N;i++)
    {
        for (j=0;j<size;j++)
        {
            array[i][j] = j;
        }
    }

    print(array, size);

    while(1){
        size*=2;
        for (i=0;i<N;i++)
        {
            array[i] = (int *)realloc(array[i], sizeof(int) * size );
        }

        for (i=0;i<N;i++)
        {
            for (j=0;j<size;j++)
            {
                array[i][j] = j;
            }
        }

//        print(array,size);
        printf("size: %i  \r", size);
    }

    return 0;
}