Create and manipulate the Linked List Data Structure in C++

[thmm]

Don't do it. C++ has a std::list and std::forward_list.
If you have to any search engine will give you countless hits.

Also be aware that linked list have a very poor performance in many cases.

[Ganado]

It's probably for school, just as literally every single "linked list" assignment is. OP could of course google a linked link c++ if he just wants a quick answer.

[thmm]

There is no way to quickly explain it.
Have a look at this article: https://en.wikipedia.org/wiki/Linked_list