Pooya87 sometimes seems to me that you are too kind to people around you, including newbies ... I just want to say that I just feel sorry for your time spent on answering this guy, since being guided only by logic, we can confidently say that he did not understand anything from what he published and, as a result, did not understand anything from your explanations.
Thank you very much for pointing out my mistake and thank Pooya87 for explaining it to me.
I now take pooya87's advice ， don't try to explain what u are not familiar with.
The sentence that was judged to be plagiarized. It is about the history of DSA, so I directly move that sentence here. My knowledge of history can only be obtained from books.
Thank you for pointing out my mistake, I will correct it.