Tell output and reason!!!!For this code:

Question

#include <iostream>
using namespace std;

int main() {
char a='a',b='b';
char *p=&a;
char *&r=p;
r=&b;
cout<<p;
return 0;
}

Answer 1

It will show the memory address of the character variable b as p is a character pointer and at first it is pointing to variable a, then reference of p is created namely 'r' (reference is just a substitute name for a variable), and then p is pointing to memory location of b through this 'r=&b'.
Hope this helps.