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#include <iostream>

using namespace std;

// void reajusta20(float& p, float& r) {
//     r = p * 0.2;
//     p *= 1.2;
//     cout << "\n End. Mem. P: " << &p;
// }

void reajusta20(float *p, float *r) {
    *r = *p * 0.2;
    *p *= 1.2;
    cout << "\n End. Mem. P: " << &p;
}

int main()
{
    // float preco = 0, val_reaj = 0;
    // cout << "\nDigite o preco: ";
    // cin >> preco;
    // cout << "\n End. Mem. Preco: " << &preco;
    // reajusta20(&preco, &val_reaj);
    // cout << "\nNovo Preco: " << preco << "   Valor Reaj.: " << val_reaj;

    int a = 10;
    int *b;

    b = &a;

    cout << "\n" << a;
    cout << "\n" << &a;

    cout << "\n\n" << &b;
    cout << "\n" << *b;

    *b = 15;

    cout << "\n\n" << *b;
    cout << "\n" << a;

    return 0;
}