2 malloc():
int **a=(int **)malloc(sizeof(int *)*nrows);
for(i=0;i<nrows;i++)
a[i]=(int *)malloc(sizeof(int)*ncols);
using only 1 malloc:
int **a=(int **)malloc(sizeof(int *)*nrows+(nrows*ncols)*(sizeof(int)));
for(i=0;i<nrows;i++)
{
a[i]=(int*)(a+nrows+i*ncols);
}
On Fri, Jun 29, 2012 at 4:46 PM, rahul r. srivastava <
rahul.ranjan...@gmail.com> wrote:
> implement a 2d matrix using only 2 mallocs.
>
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