Hello Codeforces Community,

I recently received a notice about the similarity between my submission 298251853 and 298260333 by enze_qwq for 2043B - Digits. I want to clarify that these similarities are purely coincidental and are a natural outcome of the problem’s structure and the large number of participants who solved it.

Why Similar Solutions Are Normal

This problem has over 9,000 accepted solutions, which makes the likelihood of overlapping logic and implementation very high. The task itself is straightforward: determine which odd digits (1, 3, 5, 7, 9) divide a number formed by repeating a single digit d exactly n! times. The following points explain why similar solutions are inevitable:

1. Fixed Divisors: The divisors (1, 3, 5, 7, 9) are predefined, and the divisibility rules are simple and well-known.
2. Predictable Logic: The problem is highly structured, and the solution steps are nearly identical for anyone solving it correctly.
3. Large Number of Participants: With over 9,000 accepted solutions, it is statistically likely that many submissions will look alike, especially for such a straightforward problem.

Frustration with Such Notices

It’s frustrating to receive a notice about coincidental similarities for problems of this nature. For tasks with so many correct solutions and predictable logic, overlapping implementations should be expected rather than treated with suspicion. As someone who values fair competition and works hard on these problems, it’s disheartening to have my integrity questioned over something that’s a natural consequence of the problem design.

Request for Review

I kindly request the Codeforces Team to reconsider this notice, keeping in mind the problem’s deterministic nature and the large number of accepted solutions. I firmly believe this situation is a normal coincidence and not an indication of misconduct.

Thank you for understanding.

Sincerely,
BlackIce666