// See https://aka.ms/new-console-template for more information
Console.WriteLine("Hello, World!");

// Fiboonacci sequence

int Fibonacci(int n)
{
    if (n <= 0) return 0;
    if (n == 1) return 1;
    return Fibonacci(n - 1) + Fibonacci(n - 2);
}

// volontary unused variable
int x = 10;

Console.WriteLine(Fibonacci(10));

if (args.Length > 0)
{
    Console.WriteLine("Arguments:");
    foreach (var arg in args)
    {
        Console.WriteLine(arg);
    }
}
else
{
    Console.WriteLine("No arguments provided.");
}

switch (DateTime.Now.DayOfWeek)
{
    case DayOfWeek.Monday:
        Console.WriteLine("It's Monday!");
        break;
    case DayOfWeek.Friday:
        Console.WriteLine("It's Friday!");
        break;
    case DayOfWeek.Sunday:
        Console.WriteLine("It's Sunday!");
        break;
    default:
        Console.WriteLine("It's some other day.");
        break;
}

for (int i = 0; i < 5; i++)
{
    Console.WriteLine($"Count: {i}");
}