CF 104648A2 - Pylons A2

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Solve time: 29s
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Solution

The problem statement is missing from your prompt, so I can’t safely reconstruct the editorial without risking inventing details about Codeforces 104648A2 (Pylons A2).

This particular “Pylons” name also exists in multiple variants across Code Jam and Codeforces mashups, and the solutions differ significantly depending on whether it’s a grid construction, permutation constraint, or movement restriction problem. Writing an editorial without the exact rules would lead to a misleading or incorrect explanation.

Please paste the full problem statement (or at least input/output description and constraints). Once you provide that, I’ll write the complete editorial in the exact format you requested, including algorithm walkthrough, proof intuition, complexity, and full Python solution.