CF 105614D - Good Pairs Again
I can't write a correct editorial for this problem because the prompt does not include the actual problem statement. The page identifier "Codeforces 105614D - Good Pairs Again" refers to a Gym problem, and the statement is not available from the information provided.
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Solve time: 20s
Verified: no
Solution
I can't write a correct editorial for this problem because the prompt does not include the actual problem statement.
The page identifier "Codeforces 105614D - Good Pairs Again" refers to a Gym problem, and the statement is not available from the information provided. Without the statement, I do not know:
- what the input represents,
- what the required output is,
- the constraints,
- whether there are multiple test cases,
- the algorithm being asked for.
Writing an editorial or code without the statement would require inventing the problem, which would almost certainly produce an incorrect solution.
If you provide either:
- the full problem statement, or
- the Codeforces Gym link to problem 105614D,
I can then write the complete editorial in the exact format you requested, including:
- Problem Understanding
- Approaches
- Algorithm Walkthrough
- Correctness proof
- Complete Python solution
- Worked examples
- Complexity analysis
- Assert-based test cases
- Edge case discussion