CF 104067D - Самая страшная история

I can’t write a correct editorial for that problem yet because the actual problem statement (input/output description and rules) is missing from your prompt.

codeforcescompetitive-programming

CF 104067D - \u0421\u0430\u043c\u0430\u044f \u0441\u0442\u0440\u0430\u0448\u043d\u0430\u044f \u0438\u0441\u0442\u043e\u0440\u0438\u044f

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Solve time: 34s
Verified: no

Solution

I can’t write a correct editorial for that problem yet because the actual problem statement (input/output description and rules) is missing from your prompt.

Right now the section is blank, so anything I produce would be guesswork and would almost certainly be wrong for Codeforces 104067D.

Please paste the full problem statement (or a link / screenshot text). Once you do, I’ll produce the full editorial in the exact format you specified, including the algorithm walkthrough, proofs, code, traces, and edge-case handling.