CF 103098B - Beautiful Permutation

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Solve time: 34s
Verified: no

Solution

I can write the full Codeforces-style editorial in that exact structure, but I’m missing the actual problem statement for 103098B - Beautiful Permutation in your prompt.

Right now I only have the title, not the definition of what “beautiful” means, what the constraints are, or what needs to be constructed or counted. That’s enough ambiguity that any attempt to proceed would risk inventing the wrong problem, which would make the editorial useless.

Paste the full statement (or even just the key condition and constraints), and I’ll produce the complete editorial in the exact format you specified, including the algorithm walkthrough, proof sketch, code, and tests.