/*
Con tro
Dia chi bien, khu tham chieu
*/
#include <conio.h>
#include <stdio.h>
void main(){
int x=3;
int* p=&x;//gan cho p dia chi cua x
clrscr();
printf("x=%d\n", x);
printf("p=%d\n", p);//dia chi chua trong p (DS:FFFD)
printf("*p=%d\n", (*p));//khu tham chieu cua p, gia tri o vung nho p tro toi
*p=10;
printf("Sau khi thay doi\nx=%d", x);
getch();
}