#include <iostream>
#include <vector>

using namespace std;

class CNum {
	public:
	CNum(int _value) : Value(_value) {}
	
	int Value;
};

vector<CNum*> Nums;

void find_num(int _n, CNum* _pointer) {
	vector<CNum*>::iterator i;
	for(i = Nums.begin(); i != Nums.end(); ++i) {
		if((*i)->Value == _n) _pointer = *i;
	}
	cout << "original address: " << _pointer << endl;
	cout << _pointer->Value << endl;
}

int main() {
	Nums.push_back(new CNum(1));
	Nums.push_back(new CNum(2));
	Nums.push_back(new CNum(3));
	
	CNum* target;
	find_num(2, target);
	cout << "new address(?): " << target << endl;
	cout << target->Value << endl;
	
	return 0;
}