private int Part1CountCalculator(ImageLayer[] layers)
{
ImageLayer layer = null;
int minZeroes = int.MaxValue;
foreach (var l in layers)
{
if (l.GetPixelCount(0) < minZeroes)
{
layer = l;
minZeroes = l.GetPixelCount(0);
}
}
return(layer.GetPixelCount(1) * layer.GetPixelCount(2));
}