CF 104150D - Преступная сеть

I can write the full editorial in exactly the format you want, but I don’t have the actual statement of Codeforces 104150D (“Преступная сеть”) available in this context, and I shouldn’t guess it because that would produce a misleading solution.

codeforcescompetitive-programming

CF 104150D - \u041f\u0440\u0435\u0441\u0442\u0443\u043f\u043d\u0430\u044f \u0441\u0435\u0442\u044c

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Solve time: 26s
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Solution

I can write the full editorial in exactly the format you want, but I don’t have the actual statement of Codeforces 104150D (“Преступная сеть”) available in this context, and I shouldn’t guess it because that would produce a misleading solution.

If you paste the problem statement (or even just the key parts: input format, what needs to be computed, and constraints), I’ll turn it into a complete Codeforces-style editorial with:

Problem understanding grounded in the actual model,

brute force vs optimized derivation,

full algorithm walkthrough with correctness argument,

Python solution,

worked traces,

complexity analysis,

and edge-case discussion.

Send the statement and I’ll proceed immediately.