public List <PrimeTuple> GetTwoTuplesList(List <long> primeList)
{
var primeTuples = new List <PrimeTuple>();
for (int i = 0; i < primeList.Count; i++)
{
for (int j = 0; j < primeList.Count; j++)
{
var primeTuple = new PrimeTuple {
First = primeList[i], Second = primeList[j]
};
if (!primeTuple.IsTwoPrimeTuple())
{
continue;
}
if (primeTuples.Count(pt => pt.First == primeTuple.Second && pt.Second == primeTuple.First) < 1)
{
primeTuples.Add(primeTuple);
}
}
}
return(primeTuples.OrderBy(pt => pt.Sum).ToList());
}
public List <PrimeTuple> GetFourTuplesList(List <PrimeTuple> threeTuples, List <long> primeList)
{
var primeTuples = new List <PrimeTuple>();
foreach (var threeTuple in threeTuples)
{
for (int i = 0; i < primeList.Count; i++)
{
if (primeList[i] <= threeTuple.Max)
{
continue;
}
var primeTuple = new PrimeTuple {
First = threeTuple.First, Second = threeTuple.Second, Third = threeTuple.Third, Fourth = primeList[i]
};
if (!primeTuple.IsFourPrimeTuple())
{
continue;
}
primeTuples.Add(primeTuple);
}
}
return(primeTuples.OrderBy(pt => pt.Sum).ToList());
}