static void Main(string[] args)
        {
            var data = new TspFileReader(@"tsp_hw.txt").Read();
            var solver = new TspSolver(data);
            var result = solver.Execute();

            Console.WriteLine(result);
        }
 public void Should_have_a_length_of_4()
 {
     var solver = new TspSolver(_data);
     var result = solver.Execute();
     result.ShouldEqual(4);
 }