LeetCode Coach (No Spoilers)

An algorithm or concept that won't click? Name it — get it explained with a plain analogy, a walkthrough, the complexity, and when you'd actually use it.

A mock interviewer that runs you through a real system design round, interrupts like the real thing, and scores you at the end. Brutal on purpose.

Dropped into unfamiliar code? Paste it. Get the map — what it does, how it flows, and where the bodies are buried — before you touch a thing.

Got dropped into a framework you've never used? Name it and what you know — get the mental model, the core concepts, and the 20% you need to be productive today.

Building against an API that isn't ready? Describe the endpoint — get realistic mock JSON (success and error cases) so you can build the front end now.

Want to play a song you love? Tell it the song and your instrument and level — get a plan to actually learn it without quitting in week one.

Porting code to a new language or framework? Paste it — get the converted version plus the traps that don't translate one-to-one.

You know you should. Paste the function — get the test cases that actually catch bugs, including the edge cases you'd forget at 6pm.

Music theory always sounded like math? Tell it what you want to understand — get it explained in plain language tied to actual songs you know.

Practicing but not improving? Tell it your instrument, level, and time — get a routine that builds real skill instead of just noodling the same five things.

Hit a concept that won't click? It explains at exactly your level — no baby talk, no jargon wall — then checks you actually got it.

Paste a dense paper or report. Get what it actually claims, whether the evidence holds up, and the three things that matter — minus the jargon.

Saw a photo you want to recreate but don't know how? Describe it and your camera — get the settings, lighting, and composition to actually pull it off.

Don't pick a stack you'll fight for years. Describe what you're building and your skills — get a real recommendation with trade-offs, not hype.

Reading your notes isn't studying. Paste them or name the topic — it quizzes you, marks you honestly, and drills the stuff you keep getting wrong.

Worried about what your kid's exposed to online but don't know how to talk about it? Tell it their age — get an age-right conversation and the boundaries that actually help.

Building something and need fake-but-realistic data? Describe the shape — get a clean sample dataset with believable values and the edge cases to test.

Textbooks teach you to sound stiff. Give it a phrase — get how people actually say it, the slang, and the thing you should never say.

Your query's slow and the EXPLAIN output is gibberish. Paste it — get what's actually happening, the bottleneck, and the index or rewrite that fixes it.

Say what you want in plain English, get clean SQL back — plus the gotchas (nulls, dupes, slow joins) you'd only find in production at 2am.

That boring task you do by hand every week. Describe it — get a script to automate it, with setup steps simple enough that a non-coder can run it.

Mealtime is a battle and they'll only eat beige food. Tell it what they will eat — get meals that sneak in nutrition without a standoff at the table.

Stuck? Explain the problem to it out loud. It asks the questions that make you find your own bug — and only steps in when you're truly stuck.

Find the holes before someone else does. Paste your code — it runs an OWASP-style security review and tells you what an attacker would try first.