This module provides the best approach to learn Rust, starting from the basics to advance topics. It is an introduction to Rust, specifically for beginners aspiring to become skilled Rust developers.

Become a Rust Web Developer

The word is out: developers love Rust. It's rapidly becoming a top choice for systems and embedded programmers, and the demand for Rust developers is rising. Known for its performance, reliability, and productivity—especially compared to C++—Rust is a powerful language to master. If you're a systems developer, it's a fantastic next step.
In this module, you'll learn Rust by actively engaging in coding. It starts with a simple "Hello world" program and covers essential concepts like arrays, strings, vectors, enums, structures, traits, generics, functions, and logic. You'll also dive into advanced topics such as lifetime and memory management.

Learn Rust

## Problem Statement
* A variable `x` is provided to you.

* Repeatedly decrease the value of the variable 
  `x` by 3 each time,
  as long as `x` is greater than or equal to 0.

* Print the number of times the iteration runs.

### Input
```
   integer
```
### Output
```
   iteration count
```

### Sample Input
```
   21
```
### Sample Ouput
```
   8
```
## Coding Exercise

Write your code below. It is recommended​ that you try solving the exercise yourself before viewing the solution.

> **Note:** There is a `test` function given in the code for testing purposes. Do not modify it.


> **Important Note:** A mutable variable `x` is already provided to you. This has the desired value. You just have to write the `while` loop construct.


Good luck! 🤞



# Problem Statement
* A variable `x` is provided to you.

* Repeatedly decrease the value of the variable 
  `x` by 3 each time,
  as long as `x` is greater than or equal to 0.

* Print the number of times the iteration runs.

## Input
```
   integer
```
## Output
```
   iteration count
```

## Sample Input
```
   21
```
## Sample Ouput
```
   8
```
# Coding Exercise

Write your code below. It is recommended​ that you try solving the exercise yourself before viewing the solution.

> **Note:** There is a `test` function given in the code for testing purposes. Do not modify it.


> **Important Note:** A mutable variable `x` is already provided to you. This has the desired value. You just have to write the `while` loop construct.


Good luck! 🤞



This challenge will test your knowledge of while loops.

Rust Programs

Rust Variables

Rust Data Types

Rust Operators

Rust if and if let Expressions

Rust Loops

Rust Functions

Rust Strings

Rust Vectors

Rust Structs

Conclusion

Problem Statement