CF 106500B - Pair Partitioning

I can write the full editorial, but the actual problem statement is missing from the prompt. The sections titled “Problem Statement”, “Input”, and “Output” are empty, and I cannot determine the intended algorithm from only the title “Codeforces 106500B - Pair…

codeforcescompetitive-programming

CF 106500B - Pair Partitioning

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Solution

I can write the full editorial, but the actual problem statement is missing from the prompt. The sections titled “Problem Statement”, “Input”, and “Output” are empty, and I cannot determine the intended algorithm from only the title “Codeforces 106500B - Pair Partitioning”.

Please paste the full statement (or the link to the problem), and I’ll produce the complete editorial in the exact format and style you requested, including the Python solution, walkthrough, proofs, examples, tests, and edge cases.