Meet your coaches
Talk through the problem while you code. Guest text is free. Hosted voice is the Own Words Pack.
Detect Squares
Detect Squares is a classic scan-and-record problem: the right bookkeeping beats brute force. Interviewers love it because it reveals your data-structure instincts and your edge-case discipline. The classic trap is mishandling duplicates or overwriting useful information too early.
Chat with Fin or Coco right now on mobile.
Start talking through the problem here. Switch to desktop when you're ready to code and run tests.
Start coaching sessionMeet your coaches
Talk through the problem while you code. Guest text is free. Hosted voice is the Own Words Pack.
Start a coached rep now. Guest text is free. Sign in if you want this work on another device.
Email me this coached-rep link
Code + tests need a desktop
Chat works on this phone. Email yourself a link when you want the editor and tests.