Mine

#include <iostream>int main(){	const int a = 20;	int *b;	//b = &a;	std::cout << &a << std::endl;	std::cout << b << std::endl;	b = const_cast<int*>(&a);	*b = 30;	std::cout << &a << std::endl;	std::cout << a << std::endl;	std::cout << b << std::endl;	std::cout << *b << std::endl;}