/// <summary>
/// https://adventofcode.com/2020/day/7
/// </summary>
public static void Part1()
{
var rules = new LuggageRuleSet(Input.GetLines(7).Select(x => new LuggageRule(x)));
var colors = rules.Rules.Select(x => x.Color);
var canHoldShinyGold = colors.Where(x => rules.CanEventuallyContain(x, "shiny gold"))
.OrderBy(x => x);
Console.WriteLine(canHoldShinyGold.Count());
}
/// <summary>
/// https://adventofcode.com/2020/day/7#part2
/// </summary>
public static void Part2()
{
var rules = new LuggageRuleSet(Input.GetLines(7).Select(x => new LuggageRule(x)));
Console.WriteLine(rules.CountBags("shiny gold"));
}