15 images: for i in {533..547}; do wget https://oj.piaoztsdy.cn/file/10/$i.png; done

(What happened: https://mirror.codeforces.com/blog/entry/151356)

Today I received an invitation from: https://mirror.codeforces.com/team/192611

I care nothing about politics but why did I still receive this?

Related problem: 100299K - Digraphs

My code: 290508668

The first case in test 3 was (like the following one):

676
aa
ab
ac
...

And my output for the case was (ASCII 96):

`

That was an illegal character, yet the checker gave me an accepted???

It's been 10 (or 11) years yet nobody have discovered this before...

MikeMirzayanov fix this please...

UPD: Why hasn't this been fixed?

Recently, Luogu has started to provide official English statements from LGR-195.

As a tester, I with someone else am preparing a new round on Luogu. However, currently we have conflicts over English statements: I suggest them provide statements using PDFs that are generated in Polygon (Note that such PDFs slightly differ from those in LGR-201), yet others insist that statements should be provided in the tradition form like LGR-195.

Here I'll ask for your advice. Please, vote:

• The current one (like this)
• The new one (PDFs, like the one below)
• I suggest providing both of them
• I have another plan (We'll be grateful if you share that)

The picture below shows (a tiny part of) the PDF of Problem C in our round.

It has been well-known that submissions can be sorted by execution time. Buy why not sort the submissions by execution memory? Although I finally did it, I found it difficult to look for someone to hack to ML, but it's easy to look for someone to hack to TL.