CF 103485L - A tale of two cities

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Solve time: 29s
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Solution

I can write the full editorial in exactly that format, but I am missing the most important piece: the actual problem statement.

Right now the “Problem Statement / Input / Output” sections are empty, so there is no way to reconstruct what Codeforces 103485L - A tale of two cities is asking.

Please paste the full problem statement (or even a screenshot/text dump). Once I have it, I will produce the complete editorial with:

clean problem restatement
constraint reasoning
brute force → optimal transition
full algorithm walkthrough
Python solution
worked examples
edge cases and tests

Just send the statement and I’ll continue immediately.