Day 2.txt

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            // Convert input to array of strings
            string[] inputArray = input.Split("\r\n");
            // Convert string array to list of tuples where the first item is the elfs hand and the second is mine
            List<Tuple<string, string>> roundList = new List<Tuple<string, string>>();
            foreach (string s in inputArray)
            {
                Tuple<string, string> temp = new Tuple<string, string>(s.Substring(0,1), s.Substring(2,1));
                roundList.Add(temp);
            }

            int totalPoints = 0;
            // Get score by checking each tuple(round)
            foreach (Tuple<string,string> round in roundList)
            {
                if (round.Item2 == "X")
                {
                    if (round.Item1 == "A")
                    {
                        totalPoints += 3;
                    }
                    else if (round.Item1 == "B")
                    {
                        totalPoints += 1;
                    }
                    else
                    {
                        totalPoints += 2;
                    }
                }
                else if (round.Item2 == "Y")
                {
                    if (round.Item1 == "A")
                    {
                        totalPoints += 4;
                    }
                    else if (round.Item1 == "B")
                    {
                        totalPoints += 5;
                    }
                    else
                    {
                        totalPoints += 6;
                    }
                }
                else
                {
                    if (round.Item1 == "A")
                    {
                        totalPoints += 8;
                    }
                    else if (round.Item1 == "B")
                    {
                        totalPoints += 9;
                    }
                    else
                    {
                        totalPoints += 7;
                    }
                }
            }
            Console.WriteLine(totalPoints);