How does D already have 4k submissions?
How does C have 12k submissions (with 10 minutes left in the contest)?
I thought I was having a good contest, So I stayed in the zone, and didn’t check the standings.
After submitting D, I finally saw the standings — and I am shocked I am wondering about quitting CP altogether at this point.
I miss the days when solving up to C roughly meant Expert-level performance… …and solving up to D was around Candidate Master-level.
Have I genuinely become bad at programming? Or is there something else going on?
Auto comment: topic has been updated by hermit_parth (previous revision, new revision, compare).
i was wondering the same question. i feel like noob for not solving D
D was hard took me a lot of attempts to get accepted.
HOW DID so many people solve it so quickly i dont know
This just shows that C and D are not E-level or CM-level problems.
are u sure nothing else is going on here???
Even if, for example, 1/2 of D solves are not legit, D can still be hardly a CM-level problem.
For C, well it is a trivial PIE that can be put as A.
I feel like $$$D$$$ would be tough if you haven't seen similar $$$dp$$$ definitions before, but not too bad if you have. So I think that perhaps that sort of dp definition is more common than I thought.
Yes, as a newbie, the problem wasn't really difficult for me. Even tho I didn't solve D, mostly due to lack of time, I had the solution in the mind.
Agree, problems of this round upto D are not as hard as other rounds for me. Especially CD are just straightforward application of techniques.
Hi! Could you please explain how you practiced D type problems to make them easy. If I didn’t make dumb mistakes I could’ve solved A-C in 20 mins but I still can’t solve D after 2 hours of thinking, even knowing it’s a DP problem. And I’m generally not held back by my math abilities so this problem being straightforward is quite the roadblock. Thank you!
Try problem 'Projects' on Cses DP section, uses the same idea.D was just an extension of this problem which uses probability as well
Thank you!
rank went from 600 — 4000 :(
up to D was easily gpt-able :/
I think the reason is that, now gemini pro is free for students
Even i was happy after solving problem c as i have solved first time problem c of div 2 during contest. Sad to see so many people solving C.
IMO, I believe that the high number of submissions of C comes from probably the fact that C is a classical problem, for example for my case, I used a math stack exchange blog to solve it : This, I directly used the formula, I have also seen many submissions of people who used basic PIE. Though, I guess that this is normal for an "EDU" contest.
About D, I'm also shocked about it, didn't except to find 4k submissions. Impressive !
you can literally google problem C
D is pure math (you just do a bunch of addition and multiplication) so maybe people are just good at math
really man, im so disappointed i did expect sth like this, but D having 4k subs was shocking
The contest was also on quite easier side, maybe that's why
B and C were Div.2 A level problems. Some of the submissions for problem D seem to be plagiarized, although it is easier than a usual Div.2 D.
i think D was pretty doable,and also gptable,still 4k solves is definitely too much lol
Yeah, I think many D submissions (like 10-20%?) are from AI. If you look at early accepted submissions of D by gray coders, you can see clear similarity — most of them have something like
vector<vector<pair<ll, ll>>> endsAt;and very similar logic. Some Python submissions are suspicious, too.Your submissions of C 330346357 Is so gpt like and D 330396646 too is suspicious. I wonder we are in a time where chesters are creating blogs on cheating.
wtf is even gpt-like in there?!
Ask chatgpt that question and see its solution you would know. By the way, i don't care.
brother, Just cause i like to give proper variable and function name's doesnt mean i used AI.
Nothing suspicious to me
thats why i dont check the standing during contest, put pressure on you either way
abs the problem C this time is too easy compared to the C lesson of the edu question every time
Compared to ABC, D felt like a jump in difficulty even though it wasn't that hard. A contestant with a level somewhere between problems C-D won't be able to distinguish him/herself in this contest. Feel a bit disheartened since couldn't solve D in contest time though...
This is probably off topic, but idk in this blog and comment section how many people didn't realize that you don't need to solve any CM-level problems to have CM performance, and the same holds for any rating.
Than what do u need Speed in solving other problems??
Besides cheating I also believe that the average skill of people has risen since the time I joined CP.
Yeah could also be true, Using Ai for learning can help you a lot and increase your level faster