Bhj2001's blog

September Circuits '19
By Bhj2001, history, 5 years ago, In English

Hello Everyone!

I invite you all to September Circuits '19, an exciting contest with 8 amazing problems (7 algorithmic problems and 1 approximation problem). The contest will start on September 21, 15:30 UTC and will run for 7 days.

This time, the problems are prepared by me Bhj2001 Bhagya Kamal Jain , aayueshbar Aayuesh Barui, ojas_bansal Ojas Bansal, _dp95 Dishant Pawar & anay_07 Anay Loya. Thanks to Arpa (AmirReza PoorAkhavan) for testing the problems and helping us prepare the problems.

To make the challenge more interesting, problems added to the contest in this order:

  • Day 0: Easy, Easy-Medium, Approximation.
  • Day 1: Medium, Medium.
  • Day 4: Medium-Hard, Medium-Hard.
  • Day 6: Hard

As usual, there will be some nice prizes for the top five competitors:

  • First place: $100 Amazon gift card + HE t-shirt.
  • Second place: $75 Amazon gift card + HE t-shirt.
  • Third place: $50 Amazon gift card + HE t-shirt.
  • Fourth place: HE t-shirt.
  • Fifth place: HE t-shirt.
  • Hope to see you at the scoreboard!

Good Luck & Have Fun.

  • Vote: I like it
  • +36
  • Vote: I do not like it

Comments Comments (23)
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5 years ago, # |
  Vote: I like it +4 Vote: I do not like it

I really expect this time the problem statements to be clear and correct. Bhj2001

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5 years ago, # |
  Vote: I like it 0 Vote: I do not like it

UPD: Contest is live.

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5 years ago, # |
  Vote: I like it +3 Vote: I do not like it

what?? on the hacker earth website writes 10 T-shirts for top 10! but here there is only 5!

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    5 years ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Bhj2001 please tell, is it 10 or just top 5..??

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5 years ago, # |
← Rev. 4   Vote: I like it 0 Vote: I do not like it

Is there any way to ask for clarifications? E.G. in Smallest chosen word does subsequence mean:

  1. substring (continuous)
  2. subsequence (without changing the order of remaining elements)
  3. submultiset (with changing the order)

thank you

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    5 years ago, # ^ |
    ← Rev. 2   Vote: I like it 0 Vote: I do not like it

    Admins look at the comments. Maybe you get answer in comments.(at hackerearth)

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      5 years ago, # ^ |
      ← Rev. 4   Vote: I like it 0 Vote: I do not like it

      I am sorry about stupid question, but where are comments there?

      UPD: at the bottom of the page

      UPD2: there is Provide custom input option and when running Compile & Test it also gives expected answer

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        5 years ago, # ^ |
          Vote: I like it +8 Vote: I do not like it

        It's not stupid. Go to the question, scroll down and there should be "View all comments" click there. (Sorry for bad English)

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    5 years ago, # ^ |
      Vote: I like it +8 Vote: I do not like it 
    `subsequence means subsequence the one that the one that you mentioned .` 
``
`consider this case : alablb` 
`output should be : aabb`
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5 years ago, # |
  Vote: I like it +8 Vote: I do not like it

In hackereath there is a sentence like: "HackerEarth T shirts for top 10 participants with ratings less than 1600". But in this blog you said that top 5. Which one is correct?

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5 years ago, # |
  Vote: I like it 0 Vote: I do not like it

Which one is the approximation one?

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5 years ago, # |
← Rev. 2   Vote: I like it +3 Vote: I do not like it

Hi Bhj2001, could you please fix the last problem? It gives max score of 70, instead of a 100.

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    5 years ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    70 is max score for last problem. That's why you are getting 70 instead of 100.

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      5 years ago, # ^ |
        Vote: I like it 0 Vote: I do not like it

      Why it should be worth 70 pts and for example "going to the office" 100? Also on top of the leaderboard, in that task's column it says 100. I don't see any reason to make it 70, so I think it's just a defect.

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        5 years ago, # ^ |
          Vote: I like it 0 Vote: I do not like it

        goto homepage of problems and checkout max score.

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    5 years ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Bhj2001 an update about this task. It was already mentioned in the discussion, but the tests are really weak. Sorry but currently this is a trash task. Could you please change the score to 100 and add stronger tests? It's a waste of your effort too.

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      5 years ago, # ^ |
        Vote: I like it +2 Vote: I do not like it

      I agree with you. test cases are very weak, I hope they put strong test cases and rejudge the solutions.

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5 years ago, # |
  Vote: I like it 0 Vote: I do not like it

Are there any hidden testcases for the last problem 'Friends in a town'?

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5 years ago, # |
  Vote: I like it +8 Vote: I do not like it

Why did the brute force solution for "friends in a town" pass all the test cases?

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