round 1068, i solved the problems on my own, and left like a usual day. after some days the system found my code and yaroboy code matches a lot. iam dissapointed and feel unfair that this was marked as plagiarism altho i followed all the rules. attaching the details and submissions : (yaroboy/352030950, kr25161/352043199). plz upvote the blog guys and admin remove the false plag.

what is wrong submission but passed 306759678

this is the changed one and passed which i think is correct 309488880

ask gives hash of string from l to r

whats wrong : inv[i] gives modular inverse of factorial of i

whats correct : inv[i] should be modular inverse of power of i base prime (P)

why i think this has happened : maybe due to combined probability of binary search, unsufficient tests, and bunch of luck i manage to AC the problem XD

This Chinese Ai performing better than o1 added with reasoning is now public. Will the upcoming contests have anti LLM checks such as round 1000 for both o1 and this new deepseek r1