public long GetProductWhereSum(int sum)
{
for (long c = sum / 2; c >= sum / 3; c--)
{
for (long b = (sum - c); b > (sum - c) / 2; b--)
{
long a = sum - c - b;
if (Pythagorea.isPythagorea(a, b, c))
{
return(a * b * c);
}
}
}
throw new Exception("NO product found");
}
public void Test_GetNumberOfIntegerRightTriangles(int len, int expected)
{
/* The number 145 is well known for the property that the sum of the factorial of its digits is equal to 145: */
Assert.Equal(expected, Pythagorea.GetNumberOfIntegerRightTriangles(len));
}