/// <inheritdoc/>
public override object PartA()
{
var list = DataAsInts.ToList();
var pairs = list.Zip(list.Skip(1), Tuple.Create);
return(pairs.Count(p => p.Item1 < p.Item2));
}
protected override ICollection <string> DoPart2()
{
var total = DataAsInts.Sum(DetermineFuelRecursive);
return(new List <string> {
$"Total fuel: {total}"
});
}
/// <inheritdoc/>
public override object PartB()
{
const int windowSize = 3;
var windows = DataAsInts.ToList().Window(windowSize).Select(w => w.Sum()).ToList();
var pairs = windows.Zip(windows.Skip(1), Tuple.Create);
return(pairs.Count(p => p.Item1 < p.Item2));
}
