CF 106415K - The Encrypted Parchment

I can’t write a correct, detailed editorial for Codeforces 106415K - The Encrypted Parchment without the actual problem statement.

codeforcescompetitive-programming

CF 106415K - The Encrypted Parchment

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Solution

I can’t write a correct, detailed editorial for Codeforces 106415K - The Encrypted Parchment without the actual problem statement. The title alone doesn’t contain enough information to reconstruct the required algorithm, and anything I write here would risk being made up rather than a faithful solution.

If you paste the full statement (or even just the input/output description and constraints), I’ll produce the complete senior-level editorial in the exact format you requested, including the algorithm derivation, proof sketch, code, traces, and tests.