During contest, I was stuck with C, but I saw that there was a significant increase number of people who had solved C. So, I thought that yes the contest might have been leaked again on YT. And guess what it was leaked. Hereby I am attaching some photos and links of YT channel and code of C (here c was solved by applying divide and conquer (D&C) approach in a recursive function as recursive function has O(n) Time Complexity so to reduce it, the leaker had used D&C to reduce time complexity to O(logn)

YT Link: https://www.youtube.com/live/b6yXTcwgXKM?si=nlE2bs8VTPwsPI8m

Image that roughly 2.5K people had seen it:

Images of Code of C:

So, I would request CF community to consider this and make a rollback of rating changes and identify the cheaters.

Some handles (cheaters) having same code: Gladiator_King, Bhanu0p, itz_rao etc.

Kink of code of C: https://pastebin.com/ePjNvjDs