cppFunctionBasics

#include <iostream>

enum Colors {red, yellow, green};

int generateColor()
{
    return rand() % 3;
}


void decodeColor(int color)
{
    if (color == red) { std::cout << "red"; }
    else if (color == yellow) { std::cout << "yellow"; }
    else if (color == green) { std::cout << "green"; }
    else { std::cout << "error! no such color!\n"; }
}

void printArr(int arr[], int arrSize)
{
    for (int i{ 0 }; i < arrSize; ++i)
    {
        std::cout << arr[i] << ' ';
    }
    std::cout << '\n';
}

void sayHello(bool glad, bool die)
{
    std::cout << "Hello!!! :)\n";
    if (die) { return; }
    if (glad) { std::cout << "Glad to see you!\n"; }
    else { std::cout << "Oh no! You are unwelcome!\n"; }
    return;
}

int max(int a, int b)
{
    return a > b ? a : b;
}

void maxBad()
{
    int a{};
    int b{};

    std::cout << "Enter first val\n";
    std::cin >> a;

    std::cout << "Enter second val\n";
    std::cin >> b;

    std::cout << "MAX = " << (a > b ? a : b) << '\n';
}

int retTwo()
{
    int x{ 10 };
    int y{ 20 };
    return x, y, ++y , x + y, x++;
}

//greetUser(3,true);
//greetUser(usersCount);

void swap(int a, int b)
{
    std::cout << "swap start: a = " << a << " b = " << b << '\n';
    int copy{ a };
    a = b;
    b = copy;
    std::cout << "swap finish: a = " << a << " b = " << b << '\n';
}

void greetUser(int numUsers)
{
    for (int i{ 0 }; i < numUsers; ++i)
    {
        std::cout << "Hello dear, user! :)\n";
        std::cout << "Have a nice day!\n";
    }
}

int main()
{
    const int arrSize{ 5 };
    int values[arrSize]{ 1,2,4,7,0 };
    printArr(values, arrSize);

    printArr(values, arrSize);

    const int arrSize1{ 10 };
    int values1[arrSize1]{ 1,2,3,4,5,6,7,8,9,10 };
    printArr(values1, arrSize1);

    return 0;
   // sayHello(true, true);

    int mainVar{ 42 };
    int usersCount{3};

    int numX{ 110 };
    int numY{ 20 };


    std::cout << "Enter first val\n";
    std::cin >> numX;

    std::cout << "Enter second val\n";
    std::cin >> numY;

    std::cout << max(numX, numY) << '\n';


    //maxBad();

    int res{};

    res = max(numX , 45);

    //int res{ max(23, (max(numX,numY) + 56 / 4)) };
    //std::cout << "MAX is: " << max(numX, numY) << '\n';;
    //std::cout << "MAX is: " << res << '\n';
    return 0;
    //std::cout << "inside main start: numX = " << numX << " numY = " << numY << '\n';
    //swap(numX,40);
    //std::cout << "inside main after swap: numX = " << numX << " numY = " << numY << '\n';



    greetUser(usersCount);

    //std::cout << numUsers;
    // do some initial work
    std::cout << "Initial work\n";

    // do another pice of work...
     // and more work
    greetUser(2);

    std::cout << "Main work\n";
    std::cout << "We try hard..\n\n";

    greetUser(4);

    return 0;
}