Pointer in C and C++ Qus 5

 #include<stdio.h>

#include<iostream.h>

#include<conio.h>

main()

{

clrscr();

int a=5;

int *p=NULL;      //scalar address , address of litral not allowed

cout<<p<<endl<<*p;

int *q=0;          //A NULL pointer is a pointer that does not point

// to any memory location. It store the base address of the segment

cout<<endl<<q<<endl<<*q;

//int *r=nullptr;

//int *r=null;

getch();

return 0;

}