Reddit Easy Challenge #293

Bomb_Defusing.cs

using System;
using System.Collections.Generic;

namespace BombDefusing
{
    class Program
    {
        static Dictionary<string, Predicate<string>> boomConditions = new Dictionary<string, Predicate<string>>
        {
            { "white", cut => cut != "white" && cut != "black" },
            { "black", cut => cut != "white" && cut != "green" && cut != "orange" },
            { "red", cut => cut == "green" },
            { "orange", cut => cut == "red" || cut == "black" },
            { "green", cut => cut == "orange" || cut == "white" },
            { "purple", cut => cut != "purple" && cut != "green" && cut != "orange" && cut != "white" }
        };

        static void Main(string[] args)
        {
            string line,
                lastCut = null;
            bool boom = false;

            while(!string.IsNullOrEmpty(line = Console.ReadLine()))
            {
                if (boomConditions.ContainsKey(line)) { 
                    if (lastCut != null && !boomConditions[lastCut](line))
                    {
                        boom = true;
                        break;
                    }

                    lastCut = line;
                }
                else
                    Console.WriteLine("Invalid Wire");
            }

            Console.WriteLine(boom ? "BOOM!!!!!!!!!!" : "Defused");
            Console.ReadKey();
        }
    }
}

For reddit easy Challenge #293