Brush up your skills to solve problems using recursion.

Ace the Python Coding Interview

Recursion is an important problem-solving approach. Every developer is expected to solve problems using recursion.
In this module, we'll start with the basics of what recursion is and why it’s important, before diving into practicing solving actual questions. We’ll have access to detailed explanations and visualizations for each problem to help us along the way.
By the time we have completed this module, we’ll be able to use recursion to solve complex real-world problems.

Recursion

## Problem Statement
Implement a function that takes a stack, `testVariable`, and reverses it. Do not use any other extra stack or data structure.

> Helper functions are provided in the file `stack.py`. Take a look at the file before implementing your solution.

### Input
A variable `testVariable` that contains a stack.

### Output
No **explicit output**. Our task is to reverse the contents of the stack.

### Sample Input
```
8, 5, 3, 2
```




# Problem Statement
Implement a function that takes a stack, `testVariable`, and reverses it. Do not use any other extra stack or data structure.

> Helper functions are provided in the file `stack.py`. Take a look at the file before implementing your solution.

## Input
A variable `testVariable` that contains a stack.

## Output
No **explicit output**. Our task is to reverse the contents of the stack.

## Sample Input
```
8, 5, 3, 2
```




Given a stack, reverse the contents of the stack.

Prelude

Recursion Problems

Conclusion

Challenge 2: Reverse a Stack

Problem Statement