using System;

using System.Threading.Tasks;

using System.Diagnostics;

​

class Program

{

    static async Task Main(string[] args)

    {

        Console.WriteLine("Calling async function without await:");

        CallAsyncFunctionWithoutAwait();

​

        // Adding a delay to observe the behavior

        await Task.Delay(2000);

​

        Console.WriteLine("\nCalling async function with await:");

        await CallAsyncFunctionWithAwait();

​

        Console.WriteLine("Main method completed.");

    }

​

    public static async Task<int> GetDataAsync()

    {

        await Task.Delay(1000); // Simulate async work

        Console.WriteLine("Async function completed.");

        return 42;

    }

​

    public static void CallAsyncFunctionWithoutAwait()

    {

        var stopwatch = new Stopwatch();

            stopwatch.Start();

        var result = GetDataAsync(); // Call without await

        stopwatch.Stop();

        Console.WriteLine($"Function called, but not awaited. completed in {stopwatch.ElapsedMilliseconds}");

        stopwatch = new Stopwatch();

            stopwatch.Start();

        var result2 = result.Result;

        stopwatch.Stop();

        Console.WriteLine($"getting result. {result2}, Completed in {stopwatch.ElapsedMilliseconds}");

        // The task is running, but we don't wait for it to complete.

    }

​

    public static async Task CallAsyncFunctionWithAwait()

    {

        var result = await GetDataAsync(); // Call with await

        Console.WriteLine($"Function awaited, result: {result}");

    }

}

​