311_2201

#include <iostream>

using namespace std;

/// <summary>
/// Пример использование обычных математических операторов
/// </summary>
void task0() {
    // ((2024 + 2) / 4) - 7

    double year = 2024;
    year = year + 2;
    year = year / 4;
    year = year + 7;
    std::cout << year << std::endl;
    double hour = 3753 / 60 / 60;
}


/// <summary>
/// Пример использование составного оператора
/// </summary>
void task1() {
    // ((2024 + 2) / 4) - 7
    double year = 2024;
    year += 2;
    year /= 4;
    year += 7;
    std::cout << year << std::endl;
}

/// <summary>
/// Литералы для систем счисления
/// </summary>
void task2() {
    int dec_v = 123;
    int bin_v = 0b1011011;
    int oct_v = 0123;
    int hex_v = 0xAB;

    std::cout << "dec: " << dec_v << std::endl;
    std::cout << "bin: " << bin_v << std::endl;
    std::cout << "oct: " << oct_v << std::endl;
    std::cout << "hex: " << hex_v << std::endl;
}

int balance = 100;

/// <summary>
/// Проверка возможности оплаты товара
/// и оплата.
/// </summary>
void task3() {

    int price;
    cout << "Enter price: ";
    cin >> price;

    if (balance >= price) {
        balance = balance - price;
        // balance -= price;
        cout << "Transaction complete.";
    }
    else {
        cout << "Transaction denied.";
    }
    cout << "\nBalance: " << balance << endl;
}

int main(){
    //task1();
    //task2();
    //std::cout << 0 << std::endl;
    task3();
    task3();
    task3();

    return 0;
}