using System;
using System.Collections;
using System.Collections.Generic;
namespace Codewars
{
    class Program
    {
        static void Main(string[] args)
        {
            Hashtable distTable1 = new Hashtable { { "X1", 100.0 }, { "X2", 200.0 }, { "X3", 250.0 }, { "X4", 300.0 } };
            string[] friends1 = new string[] { "A1", "A2", "A3", "A4", "A5" };
            string[][] fTowns1 = { new string[] { "A1", "X1" }, new string[] { "A2", "X2" }, new string[] { "A3", "X3" }, new string[] { "A4", "X4" } };
            tour(friends1, fTowns1, distTable1);
            Console.Read();
        }

        public static int tour(string[] arrFriends, string[][] ftwns, Hashtable h)
        {

            List<double> distances = new List<double>();
            double b = 0;
            double c = 0;
            double a = 0;
            double total = 0;
            foreach (double distance in h.Values)
            {
                distances.Add(distance);
            }
            for (int i = 0; i < distances.Count; i++)
            {
                if (total == 0)
                {
                    total = distances[i];
                }
                b = distances[i];
                Console.WriteLine($"This is b : {b}");
                Console.WriteLine($"This is i : {distances[i]}");

                if (i != distances.Count -1)
                {

                    c = distances[i + 1];
                    Console.WriteLine($"This is c : {c}");
                    Console.WriteLine($"c*c = {c*c}");
                    Console.WriteLine($"b*b = {b*b}");
                    a = (c * c) - (b * b);
                    Console.WriteLine($"problem aaa? {a}");
                    a = Math.Sqrt(Math.Sqrt(a*a));
                    total += a;
                }
                else
                    total += b;
            }
            total = Math.Round(total);
            Console.WriteLine($"This is the total : {total}");
            return (int)total;
        }
    }
}