CF 105213A2 - На заре приключений

I can't write a correct editorial for this problem because the prompt does not include the actual problem statement.

CF 105213A2 - \u041d\u0430 \u0437\u0430\u0440\u0435 \u043f\u0440\u0438\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0439

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Solve time: 29s
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Solution

I can't write a correct editorial for this problem because the prompt does not include the actual problem statement. The title alone, "Codeforces 105213A2 - На заре приключений", is not sufficient to reconstruct the task, and I could not reliably retrieve the statement from public sources.

A complete editorial requires the missing information, including:

  • The full problem statement.
  • The input format.
  • The output format.
  • Any constraints.
  • Sample tests, if available.

Once you provide the statement (or a link to it), I'll produce a full editorial following your requested structure:

  • Problem Understanding
  • Approaches
  • Algorithm Walkthrough
  • Python Solution
  • Worked Examples
  • Complexity Analysis
  • Test Cases
  • Edge Cases

The editorial will be written in the exact style and formatting you requested, including a complete Python implementation and detailed correctness reasoning.