I liked the problem, but something odd happened in the evaluation. I passed E1 and E2 during the contest, but in the post-validation got TLE in E1. It's such an odd thing to pass E2 and fail E1, and it is due to the fact that TLE strictness vary during and after the contest. Of course, if I had noticed this TLE, it would have been easy to submit the same program that had succeeded for E2...

In the old system, when you copy&pasted the input, there was inserted a carriage return at the end of the text. Then, all test cases where executed once you pasted the input.

Now this carriage return is missing, and you have to insert it manually. It is specially confusing if you are debugging code, as you paste, get to the dubugging page, and then you have to change to the prompt screen to insert this return when the execution gets to the last case.

I suppose I will get used to it, but I think it was much better with the carriage return. I don't know if the new behaviour is intended or accidental. Anybody else has had problems with it?

Anyway, the visualization in different colors is great. Thanks for all!

In my opinion, it should be rated. The server failure has affected equally everybody, and the site has run enough time to be able to submit several problems. It would be a shame to have lost all the time spent. But it is up to Mike of course...

You are right, I didn't know the difference between that notations, and even though I realized that the floor supposition didn't make much sense, I took it for granted. Frustrating, but I've learned something new...

Thanks!

In problem Div2-C, looking for programs that have been scored as correct, I see that all of them considered half of W as [W/2+1], but in the text of the problem it was clear that the condition was [W/2] <= C <= W. So, if W=101, a sum of 50 was within of the constraints of the problem.

Don't you agree?

If you got the idea of problem B, it didn't matter the constraints. And the notification of the correction was done with plenty of time to review the problem for any player. I don't think the effect to the score would be stronger than what happens when hidden tests fail at the end of the round after pretests passed. In my opinion, the round shouldn't be unrated...

I suppose there is something I haven't got about how contests work. I saw a green "tests passed" in problem D2 during the contest and now I see an error in test 67... How can it be?

I didn't know the meaning of this symbol. You are right, I confused it, I apologize.

Thanks

Great contest! I've enjoyed it, even though, as always, I've spent lots of time with silly errors. Looking for other player's solutions, I came into a program with a swastika commented in the first lines. Looking for other solutions of the same user, I saw that was a constant. The player is OuDaRjA_17o3oo2, and I think he should be banned. Do you know how I could report it?

Many thanks in advance.