What I learned by solving 50 Advent of Code challenges in Rust - Luciano Mammino

In 2020 I started to be a bit more serious about learning Rust. After having read a few books and having done some coding challenges, I decided to start live-streaming my attempts to solve Advent of Code challenges using Rust. Fast forward to 2022 I completed 50 challenges and learned a lot about how to use Rust to solve specific programming challenges. In this talk, I’ll be sharing some common tips and tricks that I discovered while live-coding also thanks to the beautiful Rust community that gave me tons of suggestions! Some topics I’ll be covering in this talk: parsing input, data structures, error handling, iterators, performance, allocating and manipulating 2d matrices, etc.

[nikensss]

No way an hour just passed… I really enjoyed the presentation, time flew 🎉

[theycallmesloth]

wow, this was pretty cool talk. thank you.

[martynclarke]

coming from JS and C# to rust has been a real breath of fresh air. Iterators in rust are just beyond fun! Great talk tooo.

[Galakyllz]

This talk was great. I need to remember that traits are so useful and it was good to learn that const generics exist. Thanks for that.

[flwi]

Ciao Luciano! What a great debut talk! I'm currently learning rust and can relate to many things you mentioned.

[maksimivanov]

Thanks! It was great to see these real-world examples.

[privettoli]

I really liked your talk, thanks Luciano! Wish you do more talks in a similar format.

[JOHNSMITH-verq]

Low level programming is another world. Really amazing and educational.

[oleksrow]

Really thorough analysis!
I'd love another talk with the listed at the end items.

[KodosUnofficial-jqoo]

I've been surprised that functional solution is so easy to think, since people assumed that functional programming is hard.

[learnbyexample]

Great talk! I have been on and off AOC, and this year I hope to solve the problems in Rust! So thanks for all the helpful pointers!

[jRsqILVOY]

once_cell might be better than lazy_static now (since it's on track to be added to the standard library, and avoids macros).

Also for the top_3 case using smallvec / tinyvec might be a good trade-off between ergonomics and not allocating.

[Qrzychu]

so, Vector vs fixed size array difference is actually quite big. Compiler can use the fixed size for optimization. array.rev().take(1) can be optimized to array[array.length -1] and so on - the Primagen has video on this :)

[harrymiller]

great presentation / thank you very much.
I currently try to learn Rust on solving AoC 2019 - today on day 14. But I'm not so hardworking in refactoring a running solution 🙂
Congratulations for your learnings on refactoring.

[MaQiavelli]

Very good presentation and thank you for advice and analyses you did.

[emanuelegurini]

ah, ma c'è Luciano?! Ok, prima metto like e poi guardo il video

[G]

Implement a trait on a trait: 24:20 Cool.

[GlynNormington]

I went to download the slides using the link 48 seconds in and the link has expired. Any chance of posting the slides?