public static int FindWeight(BaseProgram b)
{
if (b.programs == null || b.programs.Count == 0)
{
return(0);
}
var childWeights = b.programs.Select(x => x.totalweight);
Console.WriteLine(b.weight + ", " + string.Join(",", childWeights));
return(b.totalweight);
}
public static string Calculate2()
{
Console.WriteLine("Day7 part 1");
string result = null;
var lines = File.ReadAllLines("..\\..\\Input\\Day7.txt");
var pd = new Dictionary <string, BaseProgram>();
var basePrograms = new List <BaseProgram>();
foreach (var line in lines)
{
var words = line.Split();
var r = words[0].Trim();
int weight = int.Parse(words[1].Replace("(", string.Empty).Replace(")", string.Empty));
List <string> children = new List <string>();
if (line.Contains("->"))
{
children = line.Split('>')[1].Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries).Select(x => x.Trim()).ToList();
}
BaseProgram p;
if (pd.ContainsKey(r))
{
p = pd[r];
p.weight = weight;
}
else
{
p = new BaseProgram()
{
name = r, programs = new List <BaseProgram>(), weight = weight
};
pd.Add(r, p);
}
foreach (var c in children)
{
BaseProgram child = null;
if (pd.ContainsKey(c))
{
child = pd[c];
}
else
{
child = new BaseProgram()
{
name = c, programs = new List <BaseProgram>(), weight = -1
};
pd.Add(c, child);
}
p.programs.Add(child);
}
}
var root = pd.Values.Except(pd.Values.SelectMany(x => x.programs)).First();
int targetWeight = 0;
while (true)
{
var groups = root.programs.GroupBy(x => x.totalweight).OrderBy(gp => gp.Count());
if (groups.Count() > 1)
{
root = groups.First().First();
targetWeight = groups.Last().First().totalweight;
}
else
{
var difference = root.totalweight - targetWeight;
result = (root.weight - difference).ToString();
break;
}
}
return(result);
}