using System;

​

using    System.Linq ;

public class Program

{

    private static string GetPercentageRounds(double percentage)

    {

        const String blue = "\U0001F535";

        const String white = "\u26AA";

​

        String ret = "";

​

        Object a = Enumerable

        .Range(0, 10).Select(x => ","+x  )

        .Aggregate("x", (acc, x) => acc + x);

​

Console.WriteLine("Hello World" + a );

​

        for(int i=0; i<10; i++) ret += ( percentage*10 > i ) ? blue : white;

        return ret;

    }

​

    public static void Main()

    {

        Console.WriteLine(" " + GetPercentageRounds( 0.00 ) );

        //  (percentage > 0.0 && percentage <= 0.1) X

        Console.WriteLine(" " + GetPercentageRounds( 0.01 ) ); //X

        Console.WriteLine(" " + GetPercentageRounds( 0.10 ) ); //X

        // ifpercentage > 0.1 && percentage <= 0.2) XX

        Console.WriteLine(" " + GetPercentageRounds( 0.15 ) ); // xx

        Console.WriteLine(" " + GetPercentageRounds( 0.20 ) ); // xx

​

        Console.WriteLine("Hello World" + GetPercentageRounds( 0.45 ) );

    }

}