Cache's blog

By Cache, history, 2 months ago, In English,

I invite you to experience 3 hours of uninterrupted coding experience at the March Lunchtime. This 3-hour contest will offer 5 challenging problems to solve. A showdown to reach the top spot. So sharpen your coding skills and get ready to pack your Lunchtime with a box of Code. And not forgetting about our Birthday Surprise, you stand to win Laddus, with double the chances.

The problem statements of the contest will be available in English, Hindi, Bengali, Russian, Mandarin, and Vietnamese. Also, if you have some original and engaging problem ideas, and you’re interested in them being used in the CodeChef's contests, you can share them here: www.codechef.com/problemsetting/new-ideas.

I hope you will participate with your fellow programmers and enjoy the contest problems. Joining me on the problem setting panel are:

  • Setters:imanik (Anik Sarker), phoenix71 (Saad Muhammed Junayed), [user:hasinfarhan] (Md. Farhan Hasin), ezio_26 (Hasin Rayhan Dewan Dhruboo)

  • Admin & Tester: teja349 (Teja Vardhan Reddy)

  • Editorialist: taran_1407 (Taranpreet Singh)

  • Statement Verifier: Xellos (Jakub Safin)

  • Mandarin Translator: stzgd (Gedi Zheng)

  • Vietnamese Translator: Team VNOI

  • Russian Translator: Fedosik (Fedor Korobeinikov)

  • Bengali Translator: solaimanope (Mohammad Solaiman)

  • Hindi Translator: Akash Shrivastava

Contest Details:

Time: 28th March 2020 (1930 hrs) to 28th March 2020 (2230 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone.

  • Contest link: www.codechef.com/LTIME82
  • Registration: You just need to have a CodeChef handle to participate. For all those who are interested and do not have a CodeChef handle, are requested to register in order to participate.
  • Prizes: Top 10 Indian and top 10 Global school students from ranklist will receive certificates and CodeChef laddus, with which the winners can claim cool CodeChef goodies. Know more here. Good Luck!
    Hope to see you participating!!
    Happy Programming!!
 
 
 
 
  • Vote: I like it
  • -135
  • Vote: I do not like it

»
2 months ago, # |
  Vote: I like it +62 Vote: I do not like it

The site doesn't load :/

»
2 months ago, # |
  Vote: I like it +18 Vote: I do not like it

Website Not Working

500 Internal Server Error

»
2 months ago, # |
  Vote: I like it +18 Vote: I do not like it

500 Internal Server Error

»
2 months ago, # |
  Vote: I like it +3 Vote: I do not like it

Does anybody else got 500 Internal Server Error?

»
2 months ago, # |
  Vote: I like it +1 Vote: I do not like it

Site down.
Can't handle no. of participants during quarantine >_< .

  • »
    »
    2 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Looks like there are a lot of participants like previous cf div 3.

»
2 months ago, # |
  Vote: I like it 0 Vote: I do not like it

site not opening for me, "500 Internal Server Error"

»
2 months ago, # |
  Vote: I like it +24 Vote: I do not like it

Tum madarchodho ki website 3000 logo kaa bhi load nhi le sakti. Codechef is basically shit man , never fucking loads.

»
2 months ago, # |
  Vote: I like it 0 Vote: I do not like it

How much time it may take to resolve the error?

Or contest may be canceled

»
2 months ago, # |
  Vote: I like it +53 Vote: I do not like it
I invite you to experience 3 hours of uninterrupted coding experience at the March Lunchtime.

Uninterrupted?

»
2 months ago, # |
  Vote: I like it +1 Vote: I do not like it

8 minutes into the contest and the site still doesn't load!!

»
2 months ago, # |
  Vote: I like it +26 Vote: I do not like it

site ke laude lag gaye!!

»
2 months ago, # |
  Vote: I like it +41 Vote: I do not like it

It's near april fools day... and probably this is the one from codechef lol

»
2 months ago, # |
  Vote: I like it +1 Vote: I do not like it

All due to this 21 days lockdown.

»
2 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Problem set loads.. CLicks on a problem 500 INTERNAL Server Error >_<

»
2 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Codechef is also attacked by COVID-19 :P

»
2 months ago, # |
  Vote: I like it 0 Vote: I do not like it

3 hours of — uninterrupted coding experience Are u sure..xD

»
2 months ago, # |
  Vote: I like it +4 Vote: I do not like it

Thanks for the April-Fool's contest.

»
2 months ago, # |
  Vote: I like it 0 Vote: I do not like it

They probably never anticipated the amount of participants.

Codeforces barely managed it last contest

»
2 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

The site was not working and the round is declared unrated.

»
2 months ago, # |
Rev. 2   Vote: I like it +4 Vote: I do not like it

people : waiting for codechef to work.

me : when crowd goes to codechef let me practise on codeforces without long queues !

»
2 months ago, # |
  Vote: I like it +17 Vote: I do not like it

codechef needs to have light-weight version like m1, m2 and m3.codeforces.com

»
2 months ago, # |
  Vote: I like it +18 Vote: I do not like it

is it rated?

»
2 months ago, # |
  Vote: I like it +14 Vote: I do not like it

Stuck in queue for more than 15 minutes now :(

»
2 months ago, # |
  Vote: I like it +3 Vote: I do not like it

After last contest I participated on codechef I was so pissed that I canceled my account. Fairly happy now that I did not participate this time.

  • »
    »
    2 months ago, # ^ |
      Vote: I like it +5 Vote: I do not like it

    Yes, these codechef dickheads made a "Lazer" question in March Long which had no fucking proper solution possible. These dickheads should have atleast mentioned that it is not possible to solve the original problem and testcases are twisted in such a fashion that you might get AC . Lol.

    And when , this guy raised the issue there, codechef admin replied him with :- Go fuck yourself.

»
2 months ago, # |
  Vote: I like it +57 Vote: I do not like it

20:30 IST: Due to large participation, the submission queue has grown very long, and we are removing most of the test files from problems. They will be added back after the contest, during a System Test phase, where all the submissions will be rejudged.

Also, you can only make 1 submission per 2 minutes.

IS THIS A JOKE? Are you really kidding, Codechef? How can this be not unrated?

  • »
    »
    2 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    They even stopped accepting submissions. Probably unrated now

    • »
      »
      »
      2 months ago, # ^ |
        Vote: I like it 0 Vote: I do not like it

      Codechef says: "Due to large participation, the submission queue has grown very long", but the easiest problem from Div2 has only 1604 submissions. Then how is this large participation?

      • »
        »
        »
        »
        2 months ago, # ^ |
          Vote: I like it +1 Vote: I do not like it

        Rest are stuck in queue maybe. Anything more than 2-3K is a lot for codechef, remember ICPC?

      • »
        »
        »
        »
        2 months ago, # ^ |
          Vote: I like it 0 Vote: I do not like it

        ac not updating after the first hour probably Servers got fried

  • »
    »
    2 months ago, # ^ |
      Vote: I like it +6 Vote: I do not like it

    They should have given some priority for div1 participants submissions...

»
2 months ago, # |
Rev. 3   Vote: I like it 0 Vote: I do not like it

it is surely going to be unrated!!

»
2 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Lol, why does it say Contest Ended?

»
2 months ago, # |
  Vote: I like it +3 Vote: I do not like it

»
2 months ago, # |
  Vote: I like it +6 Vote: I do not like it

The submission button is not visible to me. Is anyone facing the same issue?

»
2 months ago, # |
  Vote: I like it -39 Vote: I do not like it

Due to unexpectedly large number of participants in the Lunchtime, our systems were unable to handle the load, and we are forced to stop the contest, which will be unrated. The problems will be moved to the Practice section. We are very sorry, and will be scaling up for the next contest.

https://discuss.codechef.com/t/march-2020-lunctime-unrated/59081

  • »
    »
    2 months ago, # ^ |
      Vote: I like it +57 Vote: I do not like it

  • »
    »
    2 months ago, # ^ |
    Rev. 2   Vote: I like it +4 Vote: I do not like it

    To the codechefAdmin — Bhag be bhadwe maadarchodh , tujko sirf codechef discuss pe bakchodi pelna aata hai . Codechef website and contest related tu kuch karta hi nhi hai . Bas paise khaane baitha hai betichodh . Codechef says that it is non-profit-organization . But it takes 2000-3000 rupees from thousands of Indian students every 2 months in the name of CCDSAP certification and still after having so much money , you guys can't make a webiste which has to handle only 3000 people. Big Lol to the bigAss shitty codechef team .

    Learn something from Atcoder,Codeforces,etc.... so few people, then too, they can handle 20k+ load on server and you guys cant even do for 3k even after having all the money.

  • »
    »
    2 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    bhadwey madarchod, gaand mein daal le apne discuss ko!! Bahinchod pehle site chalana seekh jaake fir post karnaa!! samjhaaa....? reply kar

  • »
    »
    2 months ago, # ^ |
      Vote: I like it +14 Vote: I do not like it

    Isn't it a good idea to introduce a registration process just like all other OJs have? This way, admins have some guess to how much scale-up or scale-down the server and they are well prepared for that.

»
2 months ago, # |
  Vote: I like it 0 Vote: I do not like it

nice chef, awesome contests

»
2 months ago, # |
  Vote: I like it +21 Vote: I do not like it

Came here only to downvote the invitation post.

»
2 months ago, # |
  Vote: I like it +8 Vote: I do not like it

I guess we should not be surprised, Codechef has had similar issues in normal contests many times before and these are abnormal times given that everyone is home these days.

»
2 months ago, # |
  Vote: I like it +1 Vote: I do not like it

Did not expect anything else from codechef. You lived up to my expectations :D

»
2 months ago, # |
Rev. 2   Vote: I like it +8 Vote: I do not like it

DISASTER

Codechef isn't prepared for the quarantine load.

(PS -waited for 30 mins to get a WA)

»
2 months ago, # |
  Vote: I like it 0 Vote: I do not like it

did I miss anything
1.server fries up
2.wrong test cases(once even wrong samples)
3. FFT ,suffix automaton in IOI syllabus contest
4. Lunchtime is not at all OI styled as claimed just a regular contest.(examples-see this lunchtime only)

from May 2019-March 2020 4 lunchtimes declared unrated(4/10)
keep it up codechef.

»
2 months ago, # |
  Vote: I like it +3 Vote: I do not like it

Dear anup.kalbalia Sir, Thoda dhyaan "AAP" yahan codechef pe bhi de lein.

"AAP"ke karan India ka naam kharab ho raha h, Thoda sambhal lo codechef ko.

»
2 months ago, # |
  Vote: I like it -13 Vote: I do not like it

How is Maximize LCM and Strip in a Tree even in IOI syllabus. Let alone the fact that they were absolutely shit problems, they were even outside IOI syllabus. If you don't want to make lunchtime an IOI style contest, then why not just remove the IOI part from the description of lunchtime? Faltu ka mera do ghanta barbaad kar diya.

  • »
    »
    2 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Maximize LCM is definitely in IOI syllabus, Strip in a Tree asks to find a modular inverse and it is quite common/useful for OI participants. Problem quality was quite good, but codechef lacks hard problems in Lunchtimes.

  • »
    »
    2 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    This isn't true, I agree that the later questions were based upon concepts beyond IOI ,but these two were fine.

    • »
      »
      »
      2 months ago, # ^ |
      Rev. 3   Vote: I like it -8 Vote: I do not like it

      Well fundamental Theorom of arithmetic and properties of LCM are explicitly excluded from ioi syllabus, and probability calculation is out of focus. Mod inverse is out of syllabus too but I don't really have a problem with that coz you can get how to do it in a single Google search.