const int& a = 10;
int* b;

*b = a;

const int& a = 10;
int* b = a;

const int& a = 10;
const int * b = &a;

const int& a = 10;
int * b = &a;

const int& a = 10;
int* b;

*b = a;

const int& a = 10;
int *b = &a;

const int& a = 10;
const int *b = &a;

#include <iostream>

int main()
{
    const int& a = 10;
    const int *b = &a;

    std::cout << "*b = " << *b << 'n';
}

*b = 10