Voice-guided DSA practice

Practice DSA the way interviews actually work.

Talk through your approach, get nudged when you're stuck, and watch your tests turn green.

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JSpart1.js

Live

// Do these meetings conflict?
function hasConflict(meetings) {
  meetings.sort((a,b) => a[0] - b[0]);
  for (let i = 1; i < meetings.length; i++) {
    if (meetings[i][0] < meetings[i-1][1]) {
      return true;
    }
  }
  return false;
}

JavaScript Connected

OUTPUT

Test 1: passed

Test 2: failed

Test 2: passed

🧑‍🏫Max

Alright, meeting conflicts—how would you tackle this?

Sort by start, then scan for overlaps.

Nice. Check that boundary—off by one?

Part 1

[[7,10], [2,4]] → true

[[0,30], [5,10], [15,20]] → false

[[1,2], [2,3], [3,4]] → true

LeetCode teaches you to code.
We teach you to think out loud.

You know how to solve problems. The hard part is doing it while someone's watching.

Voice

Talk through it

Code

Write it out

Tests

See if it runs

Real code. Real tests.

Your code runs on Judge0—the engine behind many online code editors. Real compilation, real execution.

JSsolution.js

Connected

function hasConflict(meetings) {
  meetings.sort((a,b) => a[0] - b[0]);
  for (let i = 1; i < meetings.length; i++) {
    if (meetings[i][0] < meetings[i-1][1]) 
      return true;
  }
  return false;
}

Run Code

Output

Test 1: [[7,10],[2,4]] → true

Test 2: [[0,30],[5,10]] → false

Test 3: [[1,2],[2,3]] → true

Executed in 0.8s · Memory: 12.4 MB

Not simulated

We actually compile and run your code.

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Coach knows what's failing

So it can actually help you debug.

Supported languages