AdventOfCode2017-Day08

class Program
{
        static void Main(string[] args)
        {
            var reg = new Register();

            bool perform = false;

            foreach(var line in Properties.Resources.TextFile1.Split('\n'))
            {
                var tabs = line.Trim().Split(' ');
                switch (tabs[5])
                {
                    case "<=": perform = reg[tabs[4]] <= int.Parse(tabs[6]); break;
                    case ">=": perform = reg[tabs[4]] >= int.Parse(tabs[6]); break;
                    case "==": perform = reg[tabs[4]] == int.Parse(tabs[6]); break;
                    case "<":  perform = reg[tabs[4]] <  int.Parse(tabs[6]); break;
                    case ">":  perform = reg[tabs[4]] >  int.Parse(tabs[6]); break;
                    case "!=": perform = reg[tabs[4]] != int.Parse(tabs[6]); break;
                    default: throw new NotImplementedException();
                }

                if (perform && tabs[1] == "inc") reg[tabs[0]] += int.Parse(tabs[2]);
                else if (perform && tabs[1] == "dec") reg[tabs[0]] -= int.Parse(tabs[2]);
            }

            var answerA = reg.answerA;
            var answerB = reg.answerB;
        }


    public class Register
    {
        private Dictionary<string, int> dic = new Dictionary<string, int>();

        public int this[string index]
        {
            get
            {
                if (!dic.ContainsKey(index))
                    dic.Add(index, 0);
                return dic[index];
            }
            set
            {
                if (!dic.ContainsKey(index))
                    dic.Add(index, 0);
                this.dic[index] = value;

                answerB = Math.Max(this.answerB, value);
            }
        }

        public int answerA => dic.Max(x => x.Value);
        public int answerB { get; private set; }
    }
}