public void TestIsEven()
{
var odd = PrimeFactorization.IsEven(5);
var even = PrimeFactorization.IsEven(14);
var zero = PrimeFactorization.IsEven(0);
var negative = PrimeFactorization.IsEven(-2);
Assert.AreEqual(false, odd);
Assert.AreEqual(true, even);
Assert.AreEqual(true, zero);
Assert.AreEqual(false, negative);
}
public static List <long> GetCollatzSequence(long startingValue)
{
if (startingValue <= 0)
{
throw new ArgumentException("Value must be bigger than 0.");
}
var currentValue = startingValue;
var result = new List <long> {
startingValue
};
while (currentValue != 1)
{
currentValue = PrimeFactorization.IsEven(currentValue) ? ApplyRuleForEvenNumber(currentValue) : ApplyRuleForOddNumber(currentValue);
result.Add(currentValue);
}
return(result);
}
