What are pointers ?

Answer 1

here is a quick start for you in C
https://www.sololearn.com/learn/1416/?ref=app

Answer 2

Pointers generally refers to the memory address of any other variable or value in the code.
In our code when we assign a value to any variable then that variable will automatically assigned a memory address inside the system.
To fetch those memory addresses, pointers are used.

Syntax: datatype *pointername
Example: int *ptr