Waymo DSA Interview Questions

What Waymo asks in the DSA round

Waymo asks medium-hard DSA with a robotics flavour — grids, graphs, geometry and search — plus C++ depth and a discussion of perception or planning systems.

Across the 29 questions on this page, the weight sits on these patterns:

• Breadth-First Search — 4 questions · read the breadth first search (bfs) guide
• Dynamic Programming — 4 questions · read the dynamic programming guide
• Design — 3 questions · read the design data structure guide
• Monotonic Stack — 3 questions · read the monotonic stack guide
• Sorting — 3 questions
• Binary Search — 2 questions · read the modified binary search guide
• Greedy — 2 questions · read the greedy guide
• Topological Sort — 2 questions · read the graphs guide

How to prepare for the Waymo interview

1. 1. Start at the top of the list above. The patterns are ordered by how often Waymo uses them, so the first two or three buy you the most coverage per hour.
2. 2. Solve by pattern, not at random. Doing eight breadth-first search problems in a row is what makes the ninth recognisable in an interview — jumping between topics does not.
3. 3. Tick problems off as you go so the gaps are visible. The per-pattern counts tell you which Waymo topic you have actually covered.
4. 4. Write the approach before the code. Waymo interviews are judged on the reasoning as much as the working solution.
5. 5. Pair this with the pattern guides when a topic is new, and the system design sheet if the role is senior enough to have that round.
6. 6. If this is a campus or off-campus drive rather than a lateral move, the placement preparation guide covers the stages around the DSA round — aptitude, core subjects and the HR interview — in the order they actually happen.

Waymo interview questions — FAQ

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