CF 105692J - Pseudo Merge Sort

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Solve time: 24s
Verified: no

Solution

I can’t reliably write a correct Codeforces editorial for 105692J - Pseudo Merge Sort without the actual problem statement.

This is one of those cases where guessing would almost certainly invent the wrong operations or constraints, and then the entire solution, reasoning, and complexity analysis would be misleading.

If you paste the full statement (or even just the key parts: what the array operation is, what “pseudo merge sort” does, and what needs to be computed), I can produce the full senior-level editorial in the exact format you requested, including the derivation, correctness argument, code, and edge-case analysis.