For Reddit Easy Challenge 284

Wandering_Fingers.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;

namespace Wandering_Fingers
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> words = new List<string>();

            using (StreamReader file = new StreamReader("Dictionary.txt"))
            {
                string line;

                //Each line of this file is a new word
                while ((line = file.ReadLine()) != null)
                    words.Add(line.Trim());
            }

            Console.WriteLine("Input Swiped Keys");
            string input = Console.ReadLine();
            Console.Clear();
            Console.WriteLine("Possible Words: ");

            foreach(string word in words.Where(w => w.Length > 4 && w[0] == input[0]))
            {
                bool possible = true;
                int cursorPos = 0;

                foreach(char c in word)
                {
                    cursorPos = input.Substring(cursorPos).IndexOf(c);
                    if (cursorPos == -1)
                    {
                        possible = false;
                        cursorPos = 0;
                        break;
                    }
                }

                if (possible)
                    Console.WriteLine(word);
            }

            Console.ReadKey();
        }
    }
}

For Reddit Easy Challenge 284

Dictionary.txt can be found here