static void Main(string[] args)
{
Directory.SetCurrentDirectory(@"D:\projects\adventofcode\2020");
var contents = System.IO.File.ReadAllLines("input/day07.data");
foreach (var line in contents)
{
var s = line.Split(new string[] { " bags contain " }, StringSplitOptions.RemoveEmptyEntries);
var b = new bag(s[0]);
foreach (var d in s[1].Split(new string[] { " bags, ", " bags.", " bag, ", " bag." }, StringSplitOptions.RemoveEmptyEntries))
{
if (d != "no other")
{
b.contains(
int.Parse(d.Substring(0, d.IndexOf(' '))),
d.Substring(d.IndexOf(' ') + 1)
);
}
}
data.Add(b.name, b);
}
foreach (var bag in data.Values)
{
if (bag.name != myBag)
{
bag.gold = process(bag);
}
}
Console.WriteLine("Answer: "
+ data.Values.Where(d => d.gold).Count());
int count = 0;
foreach (var bag in data[myBag].bags)
{
count += Count(bag);
}
Console.WriteLine("Answer: " + count);
}
private void day7_Load(object sender, EventArgs e)
{
for (int i = 0; i < input.Count; i++)
{
bag temp = new bag(i);
temp.bagColor = input[i].Substring(0, input[i].IndexOf(" bags"));
temp.bagCount = 1;
temp.index = i;
string contentString = input[i].Substring(input[i].LastIndexOf("contain ") + 8);
if (!contentString.Contains("no other"))
{
string[] line = contentString.Split(delims);
temp.contents = new List <bag>();
for (int j = 0; j < line.Length; j++)
{
line[j] = line[j].Trim();
bag contentTemp = new bag(line[j][0], j);
contentTemp.bagColor = line[j].Substring(2, line[j].Length - 7);
temp.contents.Add(contentTemp);
}
}
bags.Add(temp);
}
int gbOptions = -1;
for (int i = 0; i < bags.Count; i++)
{
/*printRecursive("", i);*/
if (countRecursive(i))
{
Console.Out.WriteLine(i + " is true");
gbOptions++;
}
else
{
Console.Out.WriteLine(i + " is false");
}
}
Console.Out.WriteLine("Number of possible shinys: " + gbOptions);
}
static Boolean process(bag p)
{
if (p.name == myBag)
{
return(true);
}
if (seen.Contains(p.name))
{
return(p.gold);
}
seen.Add(p.name);
foreach (var b in p.bags)
{
if (process(data[b.name]))
{
p.gold = true;
}
}
return(p.gold);
}
