Write code.
Get it judged. Write code. Get it judged.

A private playground with a real judge behind it: your program reads real input, and you get a verdict — not just whatever the browser prints.

• Real standard input

  Your cin, input() and Scanner read actual input, exactly like they do on your own machine.

• A verdict, not an echo

  Set the expected output and get Accepted or Wrong Answer, with runtime and memory used.

• Yours only

  Self-hosted and behind a login with passkeys. Nothing you write ever leaves the house.

17 languages · C++, Python, Java, Go, Rust and more