Reverse a given linked list.

[Simran1604]

Is your feature request related to a problem? Please describe.
I would like to add the code for reversing a given linked list.

Describe the solution you'd like
By changing the previous and current pointers pointing at a node, this can be achieved very smoothly.

Describe alternatives you've considered
I would provide the algorithm as well as the code with output for better understanding.

Please assign me this issue and consider it for the Hacktoberfest 2021
Thank you.

[siriak]

That's a simple thing to do, we don't need an example here, thanks!