What is Recursion?

Recursion in computer science is a method of solving a problem where the solution depends on solutions to smaller instances of the same problem. In the context of algorithms, this is achieved using a recursive function.
this is simply a function that calls itself.


Recursion in 4 steps:
1. Identify a base case(s)
2. Build up a recursive case(s)
3. Return output where needed
4. Get closer to base case(s).



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