#include<stdio.h>
#include<conio.h>

void main()
{
    int x,y;
    int *ptr;
    clrscr();

    x = 10;
    ptr = &x;
    y = *ptr;

    printf("Value of x is %d \n\n",x);
    printf("%d is stored at addr %u\n",x,&x);
    printf("%d is stored at addr %u\n",*&x,&x);
    printf("%d is stored at addr %u\n",*ptr,ptr);
    printf("%d is stored at addr %u\n",y,&*ptr);
    printf("%d is stored at addr %u\n",ptr,&ptr);
    printf("%d is stored at addr %u\n",y,&y);

    *ptr = 25;
    printf("\nNow x = %d\n",x);
    getch();
}