public override int Puzzle1Solution()
{
Slope slope = new Slope(Data.Get());
Heading heading = new Heading(3, 1);
return(TreeCount(slope, heading));
}
private int TreeCount(Slope slope, Heading heading)
{
var treeCounter = 0;
int col = 0;
for (int row = 0; row < slope.Segments.Length; row += heading.Down)
{
treeCounter += slope.Segments[row][col].Cost;
col += heading.Right;
}
return(treeCounter);
}
public override int Puzzle2Solution()
{
Heading[] headings = new Heading[]
{
new Heading(1, 1),
new Heading(3, 1),
new Heading(5, 1),
new Heading(7, 1),
new Heading(1, 2)
};
Slope slope = new Slope(Data.Get());
return(headings.Select(heading => TreeCount(slope, heading))
.Aggregate(1, (accumulator, newVal) => accumulator * newVal));
}
