public static void AddTerm(this GoldbachBuckets goldbachBuckets, int evenNum, int smallerPrime)
{
if (evenNum < goldbachBuckets.LowLimit)
{
throw new Exception($"evenNum: {evenNum} is less than LowLimit: {goldbachBuckets.LowLimit}");
}
if (evenNum < goldbachBuckets.MidPoint)
{
goldbachBuckets.LowBuckets[evenNum].Add(smallerPrime);
return;
}
if (evenNum < goldbachBuckets.HiLimit)
{
goldbachBuckets.HiBuckets[evenNum].Add(smallerPrime);
return;
}
throw new Exception($"evenNum: {evenNum} is >= HiLimit:{goldbachBuckets.HiLimit}");
}
public static GoldbachBuckets FillGoldbachBuckets(this GoldbachBuckets goldbachBuckets)
{
var primeLimit = goldbachBuckets.MidPoint;
var chunks = PrimeNumbers.CompPrimeBins(primeLimit, goldbachBuckets.BucketSize * 2)
.ToList();
foreach (var compL in chunks)
{
foreach (var lowerItem in compL.Item1)
{
foreach (var upperItem in compL.Item2)
{
goldbachBuckets.AddTerm(lowerItem + upperItem, lowerItem);
}
}
}
return(goldbachBuckets);
}
public GoldbachTermFinder(GoldbachBuckets goldbachBuckets,
Dictionary <int, List <int> > results)
{
Results = results;
CurrentGoldbachBuckets = goldbachBuckets;
}
public static GoldbachBuckets StepDown(this GoldbachBuckets origBucket)
{
return(new GoldbachBuckets(midPoint: origBucket.LowLimit,
bucketSize: origBucket.BucketSize,
hiBuckets: origBucket.LowBuckets));
}
