static void Main(string[] args)
{
int result;
Console.WriteLine(
"Solution computed in {0}",
FrameworkUtilities.Measure(() =>
{
var qualifications = new Qualification[uBound - lBound + 1];
for (int i = lBound; i <= uBound; i++)
{
qualifications[i - lBound] = GetQualification(i);
}
var abundants = qualifications.SelectWithPosition(
(q, i) => new { q, Nbr = i + lBound - 1 }
).Where(a => a.q == Qualification.Abundant).Select(a => a.Nbr).ToList();
var crossSumOfAbundants = from x1 in abundants
from x2 in abundants
select x1 + x2;
var excepts = Enumerable.Range(1, uBound).Except(crossSumOfAbundants);
return(excepts.Sum());
},
out result));
Console.WriteLine(result);
Console.ReadLine();
}
