DSA mock interviews
Most DSA preparation is silent and solitary, which trains the wrong half of the skill. In the room you have to think out loud, and a correct solution explained badly still reads as luck.
AI rounds from ₹49 · Live mocks with a working engineer from ₹999 · Pay per session
What a DSA round covers
Working the problem out loud
Restating the question, naming your assumptions, and choosing an approach before you write anything. This is the part solo practice never rehearses.
Complexity you can defend
Not just stating O(n log n), but saying where the cost comes from and what you would trade to move it. Expect to be asked for the space cost you skipped over.
Edge cases and correctness
Empty input, duplicates, overflow, and walking your own solution against a case you did not plan for. Finding your own bug scores better than being handed it.
The follow-up
Almost every question has a second half: make it faster, make it streaming, make it work when the input no longer fits in memory. Rehearsed answers come apart here.
What the interviewer is listening for
Interviewers score the path more than the destination. A candidate who narrates a wrong first approach, spots why it fails and adjusts usually outscores one who produces the optimal answer in silence.
Where candidates lose marks
- Writing code before stating the approach.
- Going quiet for minutes at a time while thinking.
- Reciting a memorised solution and stalling on the follow-up.
Two ways to practise
An AI round, on your own
One question at a time with real follow-ups on what you actually said. Choose three, five or eight questions. Scored the moment you finish, with a written breakdown across technical depth, problem solving and communication.
A live mock with an engineer
Forty minutes over Zoom with someone who runs dsa interviews for a living. They score five criteria and write up what to fix, and you keep a numbered certificate for the session.
Pick your stack for an AI round: Data structures · Java · Python · C++ · C · JavaScript.
Other tracks
Not sure which to book? The FAQ covers how sessions are scored, and candidate stories show what people did with the feedback.