private static FractionBigInt AddInverseSquare(FractionBigInt cur, ulong integer)
{
var isqr = integer * integer;
var den = cur.Denumerator * isqr;
var num = cur.Numerator * isqr + cur.Denumerator;
return(new FractionBigInt(num, den));
}
private static FractionBigInt Sum(IEnumerable <ulong> integers)
{
var sum = new FractionBigInt(0, 1);
foreach (var i in integers)
{
sum = AddInverseSquare(sum, i);
}
return(sum.Simplify());
}
private static FractionBigInt Sum(ulong[] numbers, ulong mask)
{
var sum = new FractionBigInt(0, 1);
var i = 0;
while (mask > 0)
{
if (mask % 2 != 0)
{
sum = AddInverseSquare(sum, numbers[i]);
}
i++;
mask >>= 1;
}
return(sum.Simplify());
}
private static int CompareToTarget(FractionBigInt fraction)
{
return((fraction.Numerator << 1).CompareTo(fraction.Denumerator));
}
