This definitely isn't chatGPT lol. chatGPT can't answer questions that are remotely hard. The guy probably just scraped a bunch of solutions online lmao.

These solutions have no style in common. Obviously he or she is simply copying other's code. Probably using some scripts.

chatgpt rap about cf:

Yo Yo, listen to my rap,
This song is about Codeforces,
I know your rating has plummeted,
And now it has become very low.


Codeforces is a harsh place,
For us programmers,
Sometimes we win, but most times we lose,
We get pushed to the floor and walls.


But don't give up, young man,
As long as you can code,
You will win again,
And your rating will return to its rightful place.


So gather your spirits, keep working hard,
Make your keyboard hot,
Follow my rhythm and rhyme,
And be active in every moment of the competition.


My Codeforces rating has dropped,
But I will keep moving forward.
My heart is pounding,
But I will keep persisting.


Feel the breath of life,
Seize the opportunity, keep dreaming,
You can surpass all limitations,
As long as you believe in yourself, never give up.