‘We apologize profusely for the issue in RAINBOW’s testdata. We are looking into ways in which we can keep the contest rated as well as fair. We will let you know by tomorrow.’
They said this in the contest page.
There are few reasons to be unrated as well as rated.
unrated - It wasted hours of debugging
rated - they can’t just make it unrated and waste the effort of those who worked hard in the contest. Secondly, if they were to make it unrated, they should march long challenge unrated at first because it had serious cheating.
I would support it being rated because even though it wasted my lots of time for WAs in the problem 3, I got a great rank. I never got such a good rank.
There would be many like this for whom the contest was superb but just because their time was wasted the contest should not be called unrated.