Mini-Bancomat (recapitulare functii)

#include <iostream>
using namespace std;

int alegereOperatie()
{
    int raspuns = -1;

    cout << "=======================" << endl;
    cout << "Bun venit la bancomat!" << endl;
    cout << "=======================" << endl;
    cout << "1 -> Interogare sold" << endl;
    cout << "2 -> Retragere bani" << endl;
    cout << "3 -> Depunere bani" << endl;
    cout << "4 -> Iesire" << endl;
    cout << "Raspuns: ";
    cin >> raspuns;

    return raspuns;
}

void afisareSold(int& sold, string nume)
{
    cout <<"Soldul tau, " << nume << " este de: " << sold << endl;
}

bool retragereSold(int& sold)
{
    int valoare_de_retras;
    cout << "Cat vrei sa retragi? Sold curent: " << sold << endl;
    cout << "Raspuns: "; cin >> valoare_de_retras;

    if (valoare_de_retras > sold) return false;
    else {
        sold = sold - valoare_de_retras;
        return true;
    }
}

void depunereSold(int& sold)
{
    int depunere;
    cout << "Introdu suma pe care vrei sa o depui: ";
    cin >> depunere;

    sold += depunere;
}

void analizareAlegere(int raspuns, int& sold, string nume)
{
    switch (raspuns)
    {
    case 1:
        cout << "Afisare sold..." << endl;
        afisareSold(sold, nume);
        break;

    case 2:
        cout << "Se proceseaza retragerea..." << endl;
        if (retragereSold(sold) == true) {
            cout << "Succes! Sold curent: " << sold << endl;
        }
        else {
            cout << "Ai ales o suma prea mare!" << endl;
            cout << "Soldul tau este de: " << sold << endl;
        }
        break;

    case 3:
        cout << "Se proceseaza depunerea..." << endl;
        depunereSold(sold);
        cout << "Succes! Sold curent: " << sold << endl;
        break;

    case 4:
        cout << "Programul se va inchide." << endl;
        break;

    default:
        cout << "Ai ales o optiune necunoscuta" << endl;
        break;
    }
}

void mainLoop(int& sold, string nume)
{
    int raspuns = -1;

    while (raspuns != 4)
    {
        raspuns = alegereOperatie();
        analizareAlegere(raspuns, sold, nume);
    }

    cout << "La revedere, " << nume << "!" << endl;
}

int main() {

    string nume = "Alina";
    int sold = 10000, numar_card = 74623983, varsta = 22;

    mainLoop(sold, nume);

    return 0;
}