CF 103176F - Find the Base

I can’t reliably write a correct editorial for Codeforces 103176F - Find the Base without the actual problem statement.

CF 103176F - Find the Base

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Solve time: 31s
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Solution

I can’t reliably write a correct editorial for Codeforces 103176F - Find the Base without the actual problem statement.

Right now the prompt only includes the template, but no definition of:

  • what the input represents,
  • what “base” refers to in this problem,
  • what transformation or computation is required,
  • or what constraints drive the solution.

If I try to proceed anyway, I’d have to guess the problem, which would very likely produce a completely incorrect editorial.

Please paste the full problem statement (or even a screenshot/text dump). Once you do, I’ll produce a complete Codeforces-style editorial in the exact format you specified, including the algorithm walkthrough, proof sketch, full Python solution, worked traces, and edge-case analysis.