CF 103940I - Inversion Counting

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Solve time: 33s
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Solution

I can write the full Codeforces-style editorial, but I’m missing the actual problem statement for 103940I - Inversion Counting. That title alone isn’t enough to safely reconstruct the intended variant, and inversion problems on Codeforces often differ in key details (dynamic updates, ranges, multiple arrays, constraints on queries, modulo counts, etc.).

Please paste the full statement (or at least input/output format and constraints). Once I have that, I’ll produce the complete editorial in the exact structure you requested, including algorithm walkthrough, proofs, code, tests, and edge cases.