CF 105471J - Graph Changing
I can’t write a correct editorial for “Codeforces 105471J - Graph Changing” without the actual problem statement.
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Solve time: 27s
Verified: no
Solution
I can’t write a correct editorial for “Codeforces 105471J - Graph Changing” without the actual problem statement.
Right now the statement section is empty, so there’s no way to reliably determine:
the graph operations, what changes are allowed, what the query/output requirements are, or even the constraints that drive the algorithm choice. Any attempt to proceed would be guessing, and that would almost certainly produce a wrong or misleading solution.
Paste the full problem statement (including input/output format and constraints), and I’ll produce the complete editorial in the exact style you requested.