CF 104461C - What Kind of Friends Are You?

The prompt is missing essential information needed to produce a correct editorial and solution. The provided sample input has lost its formatting because all whitespace and line breaks have been collapsed, for example: This makes it impossible to determine where one test case…

codeforcescompetitive-programming

CF 104461C - What Kind of Friends Are You?

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Solve time: 39s
Verified: no

Solution

The prompt is missing essential information needed to produce a correct editorial and solution.

The provided sample input has lost its formatting because all whitespace and line breaks have been collapsed, for example:

23 45 Serval Raccoon Fennec Alpaca Moose4 Serval Raccoon Alpaca Moose...

This makes it impossible to determine where one test case ends and the next begins, and the "Input" section of the statement is empty. As a result, I cannot reliably reconstruct:

  • the number of test cases,
  • the values of n, q, and c for each test case,
  • the per-question friend lists,
  • the query answer vectors,
  • or the intended sample inputs.

Without the original formatted input, I also cannot verify subtle details such as whether duplicate names can appear, whether every known friend has a unique answer pattern, or whether multiple known friends may legitimately share the same pattern.

Please provide either:

  1. the original Codeforces statement with properly formatted sample input, or
  2. the Codeforces URL for problem 104461C - What Kind of Friends Are You.

Once the statement is correctly formatted, I can produce the complete editorial in the exact structure you requested, including:

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