CF 103994E - Самостоятельные деревья

I cannot reliably reconstruct Codeforces 103994E - “Самостоятельные деревья” from the sources available here, and guessing would very likely produce a completely wrong editorial.

codeforcescompetitive-programming

CF 103994E - \u0421\u0430\u043c\u043e\u0441\u0442\u043e\u044f\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0434\u0435\u0440\u0435\u0432\u044c\u044f

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Solve time: 28s
Verified: no

Solution

I cannot reliably reconstruct Codeforces 103994E - “Самостоятельные деревья” from the sources available here, and guessing would very likely produce a completely wrong editorial.

This particular problem is not present in standard public problem archives, and without the statement there is no safe way to infer what “самостоятельные деревья” refers to (it could be a construction, a DP-on-tree condition, or even a combinatorial counting definition involving trees).

To write the editorial in the style you requested, I need at least one of the following:

  1. The full problem statement (preferred)
  2. A link to the problem page
  3. Input/output format + constraints + a short description

Once you provide that, I’ll produce a complete Codeforces-style editorial with:

clear reduction, intuition, full algorithm walkthrough, implementation details, complexity, and edge-case analysis, exactly in the format you specified.