PrintOddCalculateAverage

using System;
class Excercise1
{
    static void Main()
    {
        int n;
        Console.Write("Please enter a value for n: ");
        string input = Console.ReadLine();
        n = int.Parse(input);
        PrintOdd(n);
        Console.WriteLine(CalculateAverage(n));
    }

    static void PrintOdd(int n)
    {
        for (int i = 0; i <= n; i++)
        {
            if(i % 2 == 1)
            {
                Console.WriteLine(i);
            }
        }
    }

    static double CalculateAverage(int n)
    {
        int sum = 0;
        for (int i = 0; i <= n; i++)
        {
            sum += i;
        }
        return (double)sum / n;
    }
}