程序代码：

#include <stdio.h>
#include <stdlib.h>

int main(void)
{
    int **array, m, n;
    int i, j, k;
    scanf("%d %d", &m, &n);
    array = (int**)malloc(m * sizeof(int*) + m * n * sizeof(int));
    for (i = 0; i < m; i++)
        array[i] = (int*)&array[m] + i * n;
    //use it...
    for (i = k = 0; i < 5; i++)
        for (j = 0; j < 3 ;j++)
            array[i][j] = k++;

    for (i = 0; i < 5; i++)
    {
        for (j = 0; j < 3 ;j++)
            printf("%d ", array[i][j]);
        putchar('\n');
    }
    free(array);
    return 0;
}