AverageLoadTime

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;

namespace _13_AverageLoadTimeCalculator
{
    class AverageLoadTimeCalculator
    {
        static void Main(string[] args)
        {
            string line = Console.ReadLine();
            Dictionary<string, double> sumOfTime = new Dictionary<string, double> ();
            Dictionary<string, int> countOfLoads=new Dictionary<string, int>();

            while (line != string.Empty)
            {
                string[] list = line.Split(' ');
                string link = list[2];
                double loadTime = double.Parse(list[3], CultureInfo.InvariantCulture);
                if (!sumOfTime.Keys.Contains(link))
                {
                    sumOfTime[link] = loadTime;
                    countOfLoads[link] = 1;
                }
                else
                {
                    sumOfTime[link] = sumOfTime[link] + loadTime;
                    countOfLoads[link]++;
                }
                line = Console.ReadLine();
            }

            foreach (string link in sumOfTime.Keys)
            {
                Console.WriteLine(link + " --> " + sumOfTime[link]/countOfLoads[link]);
            }
        }
    }
}