CF 103306B - Benford's Law
I don’t actually have the problem statement for Codeforces 103306B “Benford's Law” in the prompt you provided, so I can’t reliably reconstruct the task or produce a correct editorial without guessing.
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Solve time: 35s
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Solution
I don’t actually have the problem statement for Codeforces 103306B “Benford's Law” in the prompt you provided, so I can’t reliably reconstruct the task or produce a correct editorial without guessing.
If you paste the full statement (or even just input/output + constraints), I’ll write the complete Codeforces-style editorial exactly in the format you specified, including brute force → optimal reasoning, walkthrough, proofs, code, and tests.