CF 105484C - Topology

I can’t write a correct editorial for “Codeforces 105484C - Topology” because the actual problem statement is missing from your prompt. Right now I don’t know: what the input describes, what “topology” refers to in this context (graph orientation, sorting, DP, etc.

CF 105484C - Topology

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Solve time: 31s
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Solution

I can’t write a correct editorial for “Codeforces 105484C - Topology” because the actual problem statement is missing from your prompt.

Right now I don’t know:

what the input describes, what “topology” refers to in this context (graph orientation, sorting, DP, etc.), or what the required output is. Without that, any “solution” would just be guessing, and that would produce a completely incorrect editorial.

If you paste the full problem statement (or even a screenshot / raw text), I’ll produce a complete Codeforces-style editorial in the exact format you requested, including the algorithm derivation, correctness argument, Python solution, worked traces, and edge-case analysis.