/// <summary>
/// Main Thread
/// </summary>
static void Main()
{
Factorial.CalculateTermsUntilIndex(101);
int solution = 0;
for (int n = 1; n <= 100; n++)
{
for (int r = 1; r <= n; r++)
{
BigInteger product = 1;
for (int j = 0; j < r; j++)
{
product *= (n - j);
}
BigInteger result = product / BigInteger.Parse(Factorial.GetFactorialTerm(r + 1));
if (result > 1000000)
{
solution++;
}
}
}
Console.WriteLine("Solution: {0}", solution);
}
/// <summary>
/// Main Thread
/// </summary>
static void Main()
{
Factorial.CalculateTermsUntilIndex(100);
int result = (from c in Factorial.GetFactorialTerm(100).ToCharArray()
select int.Parse(c.ToString())).Sum();
Console.WriteLine("Solution: {0}", result);
}
