[Dev-C++] Correct use of pointers II

[<and...@su...>]

Gentlemen,

   1. In a generic point of view, can I use this code? (Y/N)
   2. Would it be technically correct? (Y/N)

#include <stdlib.h>

int main()
{
   int a=3, b=2, *p;

   p=(int *)malloc(1*sizeof(int));
   *p = a + b;

   /* .... */

   free(p);
}

Thanks