As a tester, Dominater069, Everule and satyam343 orz

So much mindless implementation with figure out what are the edge cases.

I went to Alaska and did master level testing.

Might be possible, my bad.

Probably requires minor constant optimizations. 207226137 passed in 3 seconds.

Not sure if it is compatible with your solution, but in F replacing segment tree with a priority queue or a set gives AC in approx 3 seconds.

As a tester, I shall farm contribution.

PS: Hope you like the round and wish you positive rating :D

Okay I'm a bit annoyed (and it certainly is my fault) that I FST'd Problem D and once again (yes, previous times also I was reaching Master and then FST'd) I have to wait to touch that yellow colour again.

At this point, it seems like my fate doesn't want me to reach master again :(

Anyways, it was a great contest! A big thank you to everyone involved in the problem setting team. (Although I believe C was a bit harder than usual :P)

I think it has been quite a long wait now. Any updates?

What is wrong with this comment? Why are people downvoting it?

Can agree.

how to work hard like you

Bruh.

Thanks.

Thanks a lot! Fixed the typo and added the problem.

Apparently, the main idea for the problem was the same as one of the ideas used in one of the problems in yesterday's Codechef Snackdown Finals.

The change in timings is most probably because there is Facebook Hacker Cup Round 2 from 10.30 pm to 1.30 am IST.

He never said that upvoting 'as a tester' comment will get you positive delta :(

vishesh312 setter orz

OTZ

Are you math? Because I hate you when you come as Div 2 Bs.

Its showing "Failed to log in" for me, after using the same username and password.

Deep down you know that is your alt account and you made it for bad mouthing.

Please predict mine when you get time, thanks in advance.

aryan12

Well, the working of D was googleable. You just need to connect and implement.

Link to the site: https://www.codechef.com/wiki/tutorial-expectation (Q3).

On the first iteration it will return 2 as mid (because its 0 indexed)

Should probably be something like 6 3 3. Actual answer should give 36, people who failed system tests, their answer is 120.

Weak pretests for C. Huge number of people getting WA on test 10.

There might be an interactive problem.

I guess that codeforces is trying to make interactive problems a part of the contests, which according to me, is a good thing to do.

Did someone force you to reply here?

Yes, but don't you think the implementation will go for a toss? I am not telling you that my solution is the best, just telling you from my perspective, I code a solution which is the easiest to implement.

We put the ones in $$$k / n$$$ iterations, and thus the remaining ones will be $$$k$$$ % $$$n$$$. Note, over here the answer is $$$2$$$. The remaining ones should be lesser than $$$n$$$, because if not, then we could have added another iteration to use the $$$n$$$ ones. As the remaining ones are lesser than $$$n$$$, it means that they are lesser than the number of rows and columns. Thus, we iterate for the first $$$k$$$ % $$$n$$$ rows and columns, in the next iteration, and initialise that point $$$a[row][col]$$$ to $$$1$$$.

The following is not the way written in the editorial, but I have done it in my solution. Firstly, lets observe that if $$$k$$$ is divisible by $$$n$$$, the answer is $$$0$$$, and when it is not, the answer is $$$2$$$.

Now, how to fit the integers?

What I did was first insert $$$1$$$s in indexes $$$[1, 1], [2, 2], ...., [n, n]$$$.

In the next iteration, I inserted $$$1$$$s in indexes $$$[1, 2], [2, 3], ...., [n, 1]$$$

Like this, we have $$$(k / n)$$$ iterations.

I had put the extra $$$(k$$$ % $$$n)$$$ 1s simply as if it was the $$$(k / n) + 1$$$ th iteration, and only the first $$$(k$$$ % $$$n)$$$ 1s need to be inserted.

My submission for reference: 85648287

And currently, mine is $$$(6 + 7)$$$ = $$$13$$$, but if they would have swapped $$$A$$$ and $$$B$$$, it would have been $$$(1 + 7)$$$ = $$$8$$$. But that doesn't matter much, rating would have been affected by $$$1$$$. Focus on improving skills brother!

I got a Wrong Answer on System Testing in D. Div3, here I come :).

Yes, it is rated.

Due to the unusual timing, I can't participate in the contest. RIP rating.

Hope this round has strong pretests...

Wish everyone high rating and I hope that most of you go to the next rank in this contest.

All the best to everyone who will participate in this round. I hope to become a specialist after this contest.

Thanks.

Hi, just wanted to know when will the scoring distribution be put up?

In Question E, my solution is giving MLE. Could anyone please help me. Link to submission : https://mirror.codeforces.com/contest/999/submission/66542471

When will the editorial of the problems be posted?