public void Add(CompositeFactor cf)
{
if (hashes.Add(cf.GetLongHashCode()))
{
items.Add(cf);
}
}
static void Main(string[] args)
{
var cfs = new CompositeFactors();
var cfHashes = new C5.HashSet <int>();
var b = ImmutableSortedDictionary.CreateBuilder <int, int>();
b.Add(0, Limit);
CompositeFactor initial = new CompositeFactor(b);
cfs.Add(initial);
cfHashes.Add(initial.GetHashCode());
for (int i = 0; i < Limit - 1; i++)
{
if (i % 100 == 0)
{
Console.Write($"{(double)i / Limit:P1}, count = {cfs.Count} / {cfs.HashCount}\r");
}
var firstUnexpanded = cfs.DeleteMin();
var expansions = firstUnexpanded.Expand();
foreach (var e in expansions)
{
cfs.Add(e);
}
cfs.Add(new CompositeFactor(firstUnexpanded.Factors.ToBuilder().Increase(0)));
}
Console.Out.WriteLine($"\nFound {Limit}th factor");
var answerFactor = cfs.DeleteMin();
mpz_t result = answerFactor.Factors.Aggregate(new mpz_t(1), (res, f) => res * new mpz_t(Primes.Values[f.Key]).Power(f.Value)).Mod(123454321);
Console.WriteLine(result);
}