Actually, I want to change my handle to "antidisestablishmentarianism", but it is too long so I could only change to "antidisestablishment" :(

The past round is unrated,I feel disappointed but I think unrated is the best decision.

So, why an Candidate Master can prepare problems after E? I think codeforces should set a limit.

In the Editorial, it didn't explain the SG function has a cyclic section of length $$$34$$$ by strictly proof. So I hope someone can help me.

And another problem : Why the conclusion that problem-maker cannot prove can become a problem in the contest ?

Although 1710E - Два массива can be found on the internet,this problem is actually a hard problem, *2400 is too outrageous.

Well, Can you image that 1E is well-known?

It is unfair.

last blog

I don't want to see that Div4 is a speed competition, so I think it must have at least one *1800 or *1900.

Welcome to show your ideas.

Well, it is meaningless

:(