Deciding how to entitle a blog post for an ongoing TCO18 Marathon Match is sometimes harder than submitting some test solution for the competition. Let us count this as the primary reason why I still have not submitted any code. And the fact that I did not submit is perhaps the reason for the title of this post being a bit inconsistent, as I participated in just a few TCO Rounds #3. Two, to be more precise.
The task this time looks both hard and easy. Easy, because the probability of a random participant winning a lottery is quite high this time. Hard, because it is hard to win a lottery without any knowledge.
You can access the match here.