CF 106197L - Not a Magic Square

Rating: -
Tags: -
Solve time: 20s
Verified: no

Solution

I don’t have the actual statement of Codeforces 106197L - Not a Magic Square available, and the problem name alone isn’t enough to reliably reconstruct the intended task. This matters because there are several different “magic square” style problems (verification, construction, minimal modification, permutation constraints), and writing a correct editorial without the exact rules would risk inventing details that don’t match the judge.

If you paste the problem statement (or even just the input/output description and constraints), I’ll produce the full Codeforces-style editorial in the exact format you requested, including the walkthrough, proof sketch, and tests.

Once you send it, I can turn it around in one go.