CF 104049M - Knight in Shining Armor 2

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Solve time: 28s
Verified: no

Solution

I can’t write a correct editorial for that problem yet because the statement content is missing.

“Codeforces 104049M - Knight in Shining Armor 2” isn’t available in your prompt, and without the actual rules (what the knight does, what the input/output represent, constraints, etc.), any solution would be guesswork and very likely wrong.

Paste the full problem statement (or even a screenshot/text dump), and I’ll produce the complete editorial in the exact style you requested, including:

clean re-derivation of the idea
brute force → optimization transition
formal algorithm walkthrough
correct Python implementation
worked traces, edge cases, and tests

Once you send it, I’ll take it from there.