CF 105490I - Musaigen no Phantom World

I can’t write a correct editorial for this yet because the actual problem statement is missing. “Codeforces 105490I - Musaigen no Phantom World” alone isn’t enough to reconstruct the task reliably, and guessing would lead to a completely wrong solution write-up.

codeforcescompetitive-programming

CF 105490I - Musaigen no Phantom World

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Solution

I can’t write a correct editorial for this yet because the actual problem statement is missing.

“Codeforces 105490I - Musaigen no Phantom World” alone isn’t enough to reconstruct the task reliably, and guessing would lead to a completely wrong solution write-up.

Please paste the full problem statement (or even just the input/output description and constraints). Once you do, I’ll produce the full editorial in the exact format you specified, including algorithm, proofs, Python solution, traces, and edge-case analysis.