CF 106495G - Gerald the mudcrab

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Solve time: 28s
Verified: no

Solution

I don’t have the actual problem statement for Codeforces 106495G - Gerald the mudcrab, and I can’t reliably reconstruct it from the title alone without risking inventing details.

To write a proper editorial in the style you requested (with correct reasoning, algorithm, proofs, and code), I need at least one of the following:

full problem statement, or
a link + confirmation I should assume standard CF Gym access context, or
input/output format + constraints + what needs to be computed

Paste the statement and I’ll produce the full senior-level editorial in the exact format you specified.