LeetCode Solutions in Rust

Why would I solve LeetCode problems in Rust?! I wanted to learn Rust, without committing myself to some large real-world project. LeetCode monthly challenges are good for consistently practicing.

Why would someone not use Rust for LeetCode problems? Mainly because of the learning curve. It's a little difficult to successfully run a Rust program in one go unlike other common languages. You don't want to fight the borrow checker in a contest. Also, C++/Java/Python/JavaScript are more expressive to quickly solve these problems.

Running

Most of the solutions here are self contained programs. I did not use cargo because I wanted to keep it real simple.

You can copy paste a code and run it online in Rust Playground.

To run locally:

rustc 1234-some-file.rs -g -o run
./run

With VS Code

Run the default build task to compile and run:

1. Ctrl+Shift+p
2. Select: "Tasks: Run build task".

Pro tip: Assign a keyboard shortcut to the default build task. I use Ctrl+Shift+B. Set the backtrace level in tasks.json, if needed.

There is also a "test" task for formatting the code with rustfmt. I've assigned it to Ctrl+Shift+V.