Datadog gave me a take-home assignment, which I could have done sloppily in one day or done well in two days. They added "we respect your time, so don't spend m

Datadog gave me a take-home assignment, which I could have done sloppily in one day or done well in two days. They added "we respect your time, so don't spend more than 3 hours on it". Then they rejected my solution because I didn't guard for all kinds of invalid input that was never mentioned anywhere.