long PartOne(string input)
{
return(CountTrees(input.Split("\r\n"), (3, 1)));
}
public override string SolveFirstPuzzle()
{
var map = Input.AsCharMatrix();
return(CountTrees(map, (1, 3)).ToString());
}
static void Main(string[] args)
{
var input = File.ReadAllLines("input.txt");
Console.WriteLine(CountTrees(input, (3, 1)));
var slopes = new[]
