Advent of Code - adventofcode.com

I've just caught up to day three...

I have to say, day three / part two took a long time to finish; I wasn't expecting or looking for integer overflow on the final multiplication and you don't get an exception by default for it in c#, which I don't think I knew.

In case anyone's doing c#, I don't think it's terribly different to a couple of earlier answers:

public int Answer(int r = 3, int d = 1)
            {
                var inputData = GetInputData().ToArray();

                var returnValue = 0;
                var lengthOfRow = inputData[0].Length;
                var currenthPoz = 0;

                for (var currentvPoz =  d; currentvPoz < inputData.Length; currentvPoz += d)
                {
                    currenthPoz = (currenthPoz + r) % lengthOfRow;                   
                    if (inputData[currentvPoz].ElementAt(currenthPoz) == '#')
                        returnValue++;
                }    
                return returnValue;
            }