Challenge 01 is now free! Try the Order Book challenge in C++ or Rust — no subscription required. Set up your repo, submit your solution, and see how you rank. Start now

13 Rust challenges now live! Every C++ challenge except Ring Buffer and Seqlock has a Rust counterpart — same problems, same thresholds, separate leaderboards. unsafe is blocked. Prove you can go fast in safe Rust. Browse Rust challenges