Example #1
0
        public void Run(string[] args)
        {
            if (args.Length != 4)
            {
                Console.WriteLine($"Only {args.Length} arguments supplied on the command line.");
                Console.WriteLine("Please use: WordLadder DictionaryFile StartWord EndWord ResultFile");
            }

            try
            {
                string dictionaryFileName = args[0];
                string startWord          = args[1];
                string endWord            = args[2];
                string ladderFileName     = args[3];

                var  dictionary = _fileIO.ParseFile(dictionaryFileName);
                var  graph      = _grapgBuilder.BuildGraph(dictionary);
                var  distances  = _ladderBuilder.FindDistances(startWord, endWord, graph);
                var  path       = _ladderBuilder.BuildPath(startWord, endWord, distances);
                bool saved      = _fileIO.SaveLadder(path, ladderFileName);
                if (saved)
                {
                    Console.WriteLine($"Saved the word ladder to {ladderFileName}.");
                }
                else
                {
                    Console.WriteLine("Failed to create the ladder.");
                }
            }
            catch (Exception e)
            {
                Console.WriteLine("Error calculating the ladder.");
                Console.WriteLine($"{e.Message} at {e.StackTrace}");
            }
        }