Задание Search3, Поиск и сортировка

using System;
using System.Collections.Generic;

namespace classwork2
{
    class Program
    {
        static void Main()
        {
            var ropesInput = new double[] { 9, 13, 5, 8 };
            var maxlens = MaxNumber(ropesInput);
            var numberRopesCut = double.Parse(Console.ReadLine());

            for (var lenCutRopes = maxlens; lenCutRopes >= 1; lenCutRopes--)
            {
                int countCutRopes = 0;
                foreach (double rope in ropesInput)
                    countCutRopes += (int)(numberRopesCut / lenCutRopes);
                if (countCutRopes >= numberRopesCut)
                {
                    Console.WriteLine(lenCutRopes);
                    break;
                }
            }
        }
        public static double MaxNumber(double[] array)
        {
            double maxNumb = 0;
            foreach (var numb in array)
                maxNumb = Math.Max(maxNumb, numb);
            return maxNumb;
        }
    }
}