CF 105491E - Any Tree ?
I cannot reliably identify a Codeforces problem from the identifier “105491E - Any Tree ?”. The statement is not available in standard CF archives or mirrored listings, and it does not match a known public problem format.
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Solve time: 30s
Verified: no
Solution
I cannot reliably identify a Codeforces problem from the identifier “105491E - Any Tree ?”. The statement is not available in standard CF archives or mirrored listings, and it does not match a known public problem format.
Because your editorial format requires a precise understanding of the problem constraints and task definition, writing a correct solution narrative without the actual statement would be speculative and likely incorrect.
If you paste the full problem statement (or even a screenshot/text dump), I can immediately produce the complete editorial in the exact style you requested, including a full algorithm walkthrough, proof, and tested Python solution.