This book comes with a lot of code examples and implementations. For you to learn the most that you can, it is recommended to install Rust (any version later than 1.33 should do) and run all of the examples. Here are a few recommendations for text editors and other tools:

• Microsoft's Visual Studio Code (https://code.visualstudio.com/), arguably one of the best Rust code editors
• Rust support for Visual Studio Code via a plugin (https://github.com/rust-lang/rls-vscode)
• Rust Language Server (RLS), found at https://github.com/rust-lang/rls-vscode, installed via rustup (https://rustup.rs/)
• Debugging support using the LLDB frontend plugin (https://github.com/vadimcn/vscode-lldb) for Visual Studio Code

Having this environment set up and being familiar with it is great for your daily Rust programming, and will let you debug and inspect the workings of the code provided in this book. For you to get the most out of this book, we recommend that you do the following:

• Check out the source code in the repository to get the whole picture. The snippets are only isolated examples to show specifics.
• Don't blindly trust our results; run the tests and benchmarks of each sub-project (chapters) to reproduce the findings yourself.

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. You can download it here https://www.packtpub.com/sites/default/files/downloads/9781788995528_ColorImages.pdf.

You can download the example code files for this book from your account at www.packt.com. If you purchased this book elsewhere, you can visit www.packt.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packt.com.
2. Select the SUPPORT tab.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/Hands-On-Data-Structures-and-Algorithms-with-Rust. In case there's an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "The reason is that the passing_through variable outlives x."

A block of code is set as follows:

fn my_function() {
    let x = 10;
    do_something(x); // ownership is moved here
    let y = x; // x is now invalid!
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

fn main() { 
    let mut a = 42; 
    let b = &a; // borrow a 
    let c = &mut a; // borrow a again, mutably 
    // ... but don't ever use b
}

Any command-line input or output is written as follows:

$ cargo test 

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."