Advent of CodSpeed
Rust speed contest on Advent of Code puzzles, ranked by runtime
Advent of CodSpeed was a speed contest built on the 2024 Advent of Code puzzles. Getting the right answer was only the start: your Rust solution was ranked by how fast it ran. Each day had two parts, and the total time decided your place on the daily leaderboard.
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About Advent of CodSpeed
It practises writing fast Rust code, measuring performance and choosing efficient algorithms and data structures.
It suits experienced Rust programmers. To take part, you needed a public GitHub repository with your solutions, registered with CodSpeed. Entries were Rust only. The 2024 leaderboards are still on the site, but we could not confirm a newer edition.
On Breakpoint since 23 Oct 2026.