#include <iostream>

class BankAccount {
private:
    double balance;

public:
    BankAccount(double balance) : balance(balance) {}

    bool withdraw(const double amount) {
        if (balance >= amount) {
            balance -= amount;
            return true;
        }
        return false;
    }

    bool deposit(const double amount) {
        balance += amount;
        return true;
    }

    double getBalance() const {
        return balance;
    }
};

class Transaction {
private:
    BankAccount* from;
    BankAccount* to;
    double amount;

public:
    Transaction(BankAccount* from, BankAccount* to, double amount)
        : from(from), to(to), amount(amount) {}

    bool execute() {
        if (from->withdraw(amount)) {
            to->deposit(amount);
            return true;
        }
        return false;
    }
};

int main() {
    BankAccount* account1 = new BankAccount(1000.0);
    BankAccount* account2 = new BankAccount(500.0);

    Transaction* transaction = new Transaction(account1, account2, 500.0);
    bool res = transaction->execute();

    if (res) {
        std::cout << "Transaction successful" << std::endl;
    } else {
        std::cout << "Transaction failed" << std::endl;
    }

    std::cout << account1->getBalance() << std::endl;
    std::cout << account2->getBalance() << std::endl;

    delete transaction;
    delete account1;
    delete account2;

    account1 = new BankAccount(1000.0);
    account2 = new BankAccount(500.0);
    transaction = new Transaction(account1, account2, 5000.0);

    res = transaction->execute();

    if (res) {
        std::cout << "Transaction successful" << std::endl;
    } else {
        std::cout << "Transaction failed" << std::endl;
    }

    std::cout << account1->getBalance() << std::endl;
    std::cout << account2->getBalance() << std::endl;

    delete transaction;
    delete account1;
    delete account2;

    return 0;
}