//6

using System;

​

​

double Diameter(int n)

{

    double max = double.MinValue;

    double min = double.MaxValue;

​

    for (int i = 0; i < n; i++)

    {

        Console.Write("Enter decimal number " + (i + 1) + ": ");

        double number = double.Parse(Console.ReadLine());

​

         if (number > max) max = number;

        if (number < min) min = number;

    }

​

    return max - min;

}

​