CF 105947G - Dãy số GCD
I can’t reliably reconstruct Codeforces 105947G - Dãy số GCD from the title alone, and the rest of the prompt doesn’t include the actual statement or constraints.
CF 105947G - D\u00e3y s\u1ed1 GCD
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Solve time: 21s
Verified: no
Solution
I can’t reliably reconstruct Codeforces 105947G - Dãy số GCD from the title alone, and the rest of the prompt doesn’t include the actual statement or constraints.
Given how tightly the editorial format depends on the exact operations (range queries, updates, counting subarrays, gcd transformations, etc.), guessing would very likely produce a misleading or incorrect solution.
If you paste the full problem statement (or even just the input/output description plus constraints), I can immediately produce the complete editorial in the requested Codeforces style, including a correct algorithm, proof sketch, and implementation.