CF 104150C - Зашифрованное сообщение

I can’t reliably reconstruct Codeforces 104150C (“Зашифрованное сообщение”) from the identifier alone, and the problem statement isn’t included in your prompt.

codeforcescompetitive-programming

CF 104150C - \u0417\u0430\u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435

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Solve time: 31s
Verified: no

Solution

I can’t reliably reconstruct Codeforces 104150C (“Зашифрованное сообщение”) from the identifier alone, and the problem statement isn’t included in your prompt. Writing a correct editorial without the actual rules would risk inventing a different problem, which would defeat the purpose of the walkthrough.

Paste the statement (or even just the input/output description and constraints), and I’ll produce the full Codeforces-style editorial in the exact format you requested, including the algorithm derivation, proof sketch, implementation, and edge-case analysis.