This newbie sa07885 AK that div 4 and reached specialist!

And he used a completely different code template at the submission of the last problem here 315380280 compared to the rest like this 315433305

And it looks like he used an AI code generator

when I used AI code detector to check, it said: Highly Likely AI-Generated Probability: ~85–95% AI-generated, possibly by ChatGPT or a similar model trained on competitive programming problems.