/// <summary>
/// Solve the problem
/// </summary>
/// <returns>The sum result</returns>
private long Solve()
{
long sum = 0;
this.Amicables = new List <long>();
this.NotAmicables = new List <long>();
AmicableNumber num;
for (int i = 2; i <= this.Limit; i++)
{
if (!this.Amicables.Contains(i) && !this.NotAmicables.Contains(i))
{
num = new AmicableNumber(i);
if (num.IsAmicable)
{
this.Amicables.Add(num.Number);
this.Amicables.Add(num.Amicable);
}
else
{
if (!this.NotAmicables.Contains(num.Number))
{
this.NotAmicables.Add(num.Number);
}
if (!this.NotAmicables.Contains(num.Amicable))
{
this.NotAmicables.Add(num.Amicable);
}
}
}
sum = this.Amicables.Sum <long>(x => x);
}
return(sum);
}
public static long SumOfAmicableNumbersUnder10000()
{
long sum = 0;
for (int i = 1; i < 10000; i++)
{
if (AmicableNumber.IsAmicable(i))
{
sum += i;
}
}
return(sum);
}
public void AmicableNumber_220()
{
Assert.True(AmicableNumber.IsAmicable(220));
}
public void AmicableNumber_284()
{
Assert.True(AmicableNumber.IsAmicable(284));
}