107. Understanding pointers.

#include<stdio.h>

void main()

{

    int a=10,b=20;

    int *p;

   

    p=&a;

    printf("%d %d\n",a,*p);

    *p=100;

    printf("%d %d\n",a,*p);

 

    p=&b;

    printf("%d %d\n",b,*p);

    *p=200;

    printf("%d %d\n",b,*p);

}