CF 102802K - Lost Child

I can't write a correct editorial for this problem because the prompt does not include the actual problem statement. The title, input, and output sections are empty, so I do not know what the task is asking.

codeforcescompetitive-programming

CF 102802K - Lost Child

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Solve time: 20s
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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, input, and output sections are empty, so I do not know what the task is asking.

If I invented the problem or solution, the editorial, algorithm, proof, complexity analysis, Python implementation, worked examples, and test cases would all be unreliable.

Please provide one of the following:

  1. The full statement of Codeforces 102802K - Lost Child, or
  2. A link to the problem, or
  3. The input/output specification and any constraints.

Once I have the statement, I'll produce the complete editorial with all of the requested sections:

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

following all of your formatting and style requirements.