public void Part1_Example_ParseRules()
{
var input = new[] {
"light red bags contain 1 bright white bag, 2 muted yellow bags.",
"dark orange bags contain 3 bright white bags, 4 muted yellow bags.",
"bright white bags contain 1 shiny gold bag.",
"muted yellow bags contain 2 shiny gold bags, 9 faded blue bags.",
"shiny gold bags contain 1 dark olive bag, 2 vibrant plum bags.",
"dark olive bags contain 3 faded blue bags, 4 dotted black bags.",
"vibrant plum bags contain 5 faded blue bags, 6 dotted black bags.",
"faded blue bags contain no other bags.",
"dotted black bags contain no other bags.",
};
var rules = input.Select(s => BagRule.FromInput(s)).ToList();
var dict = BagRule.LinkRules(rules);
dict.Should().ContainKeys(
"light red",
"dark orange",
"bright white",
"muted yellow",
"shiny gold",
"dark olive",
"vibrant plum",
"faded blue",
"dotted black");
dict["light red"].ContainRules.Should().BeEquivalentTo((dict["bright white"], 1), (dict["muted yellow"], 2));
}
private Dictionary <string, BagRule> ParseBagRules()
{
Input = Input.Replace("\r", "").Trim();
var bags = Input
.Split('\n')
.Select(l => BagRule.FromInput(l))
.ToList();
return(BagRule.LinkRules(bags));
}