CF 105747C - Neighbor's Wi-Fi

I can’t reliably write a correct editorial for this without the actual problem statement. “Codeforces 105747C - Neighbor’s Wi-Fi” doesn’t include any details here (inputs, constraints, or what needs to be computed), and guessing would very likely produce a completely…

codeforcescompetitive-programming

CF 105747C - Neighbor's Wi-Fi

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Solve time: 31s
Verified: no

Solution

I can’t reliably write a correct editorial for this without the actual problem statement.

“Codeforces 105747C - Neighbor’s Wi-Fi” doesn’t include any details here (inputs, constraints, or what needs to be computed), and guessing would very likely produce a completely wrong solution and misleading reasoning.

Please paste the full problem statement (or even a screenshot/text dump). Once you do, I’ll write the full Codeforces-style editorial exactly in the format you specified, including brute force intuition, optimal insight, proof, implementation, and tests.