#include <conio.h>
#include <stdio.h>
#include <alloc.h>
void main(){
int *p;
p=(int *)malloc(1* sizeof(int));//cap phat bo nho vua cho 1 phan tu kieu int
*p=1;
printf("\n p=%ld", p);
printf("\n *p=%d", *p);
getch();
free(p);//giai phong vung nho da cap phat
}