Explore Rust’s unique features with 24 brain-teasing puzzles. Gain insights into Rust concepts, enhancing your skills and preparing for advanced topics after completing the course.

newrust.tar.gz

codewidgetrust

livewidgetrust

livewidgetrust-cargo-toml-release

codewidgetrust-cargo

livewidgetrust-cargo-main-toml-release

livewidgetrust-cargo-clippy

livewidgetrust-cargo-main-release

livewidgetrust-cargo-nightly

livewidgetrust-cargo-release-update

livewidgetrust-cargo-languages

livewidgetrust-shadow-same

livewidgetrust-shadow-reuse

livewidgetrust-shadow-unrelated

live-cargo-clippy

live-cargo-release-update

live-cargo-nightly

live-cargo-shadow-same

live-cargo-shadow-reuse

live-cargo-shadow-unrelated

live-cargo-sleepless

livewidgetrust-cargo-release-update-puzzle11

This course provides insights into Rust’s unique features by exploring them in 24 brain-teasing puzzles. Each puzzle is explained in its following lesson. Complete all 24, and by the time you’re done, your knowledge about different concepts in Rust will definitely be improved, and you will be ready to move on to more advanced concepts.

Rust Brain Teasers

# Guess the output
Before moving on to the explanation, try to guess the output of the following program. Good luck!

fn main() {
    loop {
        let buffer = (0..1000).collect::<Vec<u32>>();
        std::mem::forget(buffer);
        print!(".");
    }
}

The program loop runs forever since there's no `break` keyword to stop it.

The program prints a thousand dots (`.`) and exits.

The program prints dots (`.`) for 10 seconds and then stops executing.

<p>What is the output of the code above?</p>


Let’s solve this memory safety puzzle in Rust.

Introduction

Puzzles

Wrapping it up

Puzzle 12: Amnesia