CF 106102B - Move-a-coin-2

I can't write a correct editorial for this problem because the actual statement for Codeforces 106102B - Move-a-coin-2 is not included in your message. The prompt currently contains only: with no description of the game, graph, board, constraints, or sample tests.

codeforcescompetitive-programming

CF 106102B - Move-a-coin-2

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Solve time: 25s
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Solution

I can't write a correct editorial for this problem because the actual statement for Codeforces 106102B - Move-a-coin-2 is not included in your message.

The prompt currently contains only:

## Problem Statement

## Input

## Output

with no description of the game, graph, board, constraints, or sample tests.

For a competitive programming editorial, the exact statement is essential. The solution, proof, edge cases, complexity analysis, worked examples, and code all depend on details that are missing.

Please provide one of the following:

  1. The full problem statement, including input/output format and constraints.
  2. A link to the problem.
  3. The sample input/output from the problem page.

Once you provide the statement, I'll write the complete editorial in the requested format, including:

  • Problem Understanding
  • Approaches
  • Algorithm Walkthrough
  • Correctness reasoning
  • Full Python 3 solution
  • Worked examples
  • Complexity analysis
  • Assert-based test cases
  • Edge case discussion

all in the exact style and structure you requested.