TheScrasse's blog

Sad story
By TheScrasse, history, 11 months ago, In English

This problem was going to be used in Pinely round...

Problem

but it has exactly the same solution as 1913D - Array Collapse.

A while ago I invented another problem, but my coordinator rejected it because the authors of Hello 2024 (whose coordinator is the same) had just invented the same exact problem!

:(

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11 months ago, # |
  Vote: I like it +162 Vote: I do not like it

The positive side of this is:

Spoiler
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11 months ago, # |
  Vote: I like it +110 Vote: I do not like it

I've just found out (from the comment section of the last Educational round) that my problem is identical to TKOC 2021/4, which I had already solved. Now I feel less sad. (If 1913D - Array Collapse didn't appear, in my round there would have been a problem which already appeared previously.)

Actually, when I invented my problem, I thought I had already seen something similar on the TLX website, but I convinced myself the "similar problem" was this problem, which is much harder, and I missed that I had actually seen an identical problem.

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    11 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    There are a lot of online problems, so inventing new problems without duplication is very hard for setter

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    11 months ago, # ^ |
      Vote: I like it +23 Vote: I do not like it

    It's ok bro, it happens even in ICPC World Finals. You can't know all problems ever invented.

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11 months ago, # |
← Rev. 2   Vote: I like it -21 Vote: I do not like it


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11 months ago, # |
  Vote: I like it +10 Vote: I do not like it

The fact you don't reveal the second problem means that there won't be any replacements in Hello 2023. I wonder, whether you are allowed to participate in the round :D. Most likely, you are eligible to take part in the contest, but were persuaded not to use your advantage of knowing a problem, right?

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11 months ago, # |
  Vote: I like it +23 Vote: I do not like it

https://en.wikipedia.org/wiki/Noosphere

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11 months ago, # |
  Vote: I like it -16 Vote: I do not like it

Invent original problems based on real life or games. Pure math problems can coincide with much higher probability.

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