CF 1051953 - Не был предателем...

I don’t have the actual statement of Codeforces 1051953 “Не был предателем…”, and without it I can’t produce a correct editorial.

CF 1051953 - \u041d\u0435 \u0431\u044b\u043b \u043f\u0440\u0435\u0434\u0430\u0442\u0435\u043b\u0435\u043c...

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Solve time: 34s
Verified: no

Solution

I don’t have the actual statement of Codeforces 1051953 “Не был предателем…”, and without it I can’t produce a correct editorial.

Right now the prompt only contains formatting instructions, so there’s no information about what the problem is asking, what the input represents, or what needs to be computed. Any attempt to write a full solution would be guesswork and very likely wrong.

Paste the full problem statement (or at least the input/output description and constraints), and I’ll write the complete editorial in the exact style you specified, including the algorithm derivation, proof sketch, Python solution, and test coverage.