public static void GapInPrimesTests_test2()
{
var t = AtkinPrimeNumbersGenerator.PrimesOld(1000000);
var tt = AtkinPrimeNumbersGenerator.Primes(1000000L);
//var tt = new AtkinPrimeNumbersGenerator(1000000000);
Assert.AreEqual(tt.Count(), t.Count());
}
public static long[] Gap(int g, long m, long n)
{
var allPrimes = AtkinPrimeNumbersGenerator.Primes(n);
var smalRange = allPrimes.Where(a => m <= a &&
a <= n).ToList();
for (var i = 1; i < smalRange.Count(); i++)
{
var actualGap = smalRange.ElementAt(i) - smalRange.ElementAt(i - 1);
if (actualGap == g)
{
return(new[] { smalRange.ElementAt(i - 1), smalRange.ElementAt(i) });
}
}
return(null);
}
