Hello Codeforces Community, I am writing this to appeal a plagiarism warning I received for Problem B (Secret String Patterns) in the recent Div. 2 round. The system flagged my code for matching with multiple other participants. However, after looking at the status page, it is clear that many participants implemented the exact same approach. Because Problem B is an interactive problem with a strict limit of 5 queries, the mathematical logic to deduce the answer inherently dictates a very specific querying strategy. When a problem forces a unique, optimized sequence of interactive queries (such as checking the total number of 1s across specific bounds), the implementation logic for the query loop and the standard flushing mechanisms (like cout.flush() or fflush) leave virtually zero room for structural variation. It is mathematically inevitable that multiple independent participants targeting the same optimal query sequence will write structurally identical code. Furthermore, I submitted my code early during the contest, well before many of the other flagged solutions. I have never shared my code, nor do I know any of the users involved. I kindly request the round coordinators and administrators to review this case and remove the unfair flag. • My Submission: https://codeforces.me/contest/2280/submission/397756269 • Problem Link: https://codeforces.me/problemset/problem/2280/B Thank you for your understanding.