Roblox vs Waymo Interview Questions
Roblox lists 56 LeetCode interview questions while Waymo lists 25. They share 4 problems — 7% of Roblox's bank and 16% of Waymo's. Focus on the overlap first, then drill into 52 Roblox-only and 21 Waymo-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 4 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Roblox and Waymo.
Step 2 — Company-specific depth: Add Roblox-specific problems like Candy Crush, Reorganize String, Number of Ways to Wear Different Hats to Each Other and Waymo-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Waymo skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
4 Shared Questions
High-priority problems to practice for both Roblox and Waymo.
| Problem | Difficulty |
|---|---|
| Text Justification | Hard |
| Logger Rate Limiter | Easy |
| Largest Rectangle in Histogram | Hard |
| Random Pick with Weight | Medium |
Unique to Roblox (52)
Problems in Roblox's list that do not appear at Waymo.
| Problem | Difficulty |
|---|---|
| Candy Crush | Medium |
| Reorganize String | Medium |
| Number of Ways to Wear Different Hats to Each Other | Hard |
| Maximize Distance to Closest Person | Medium |
| Task Scheduler | Medium |
| Course Schedule II | Medium |
| Design Hit Counter | Medium |
| Design Search Autocomplete System | Hard |
| Integer to English Words | Hard |
| Count Number of Nice Subarrays | Medium |
| Group the People Given the Group Size They Belong To | Medium |
| Rotate Image | Medium |
Unique to Waymo (21)
Problems in Waymo's list that do not appear at Roblox.
| Problem | Difficulty |
|---|---|
| Max Points on a Line | Hard |
| Number of Islands | Medium |
| Number of Visible People in a Queue | Hard |
| Meeting Rooms II | Medium |
| Minimum Number of Refueling Stops | Hard |
| Minimum Knight Moves | Medium |
| Minimum Area Rectangle | Medium |
| Design Excel Sum Formula | Hard |
| Design Tic-Tac-Toe | Medium |
| Shortest Distance from All Buildings | Hard |
| Maximum Gap | Medium |
| Divide Array in Sets of K Consecutive Numbers | Medium |
Frequently Asked Questions
How many LeetCode questions do Roblox and Waymo share?
Roblox and Waymo share 4 LeetCode interview questions. 52 problems appear only in Roblox's list and 21 appear only in Waymo's list.
What topics overlap most between Roblox and Waymo?
The most common shared topics between Roblox and Waymo are Array (3 shared questions), String (1 shared questions), Simulation (1 shared questions), Hash Table (1 shared questions), Design (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Roblox or Waymo?
Roblox has 8 Easy, 35 Medium, and 13 Hard questions. Waymo has 1 Easy, 13 Medium, and 11 Hard questions. Waymo has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Roblox and Waymo?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 20 Roblox-specific and 20 Waymo-specific questions to round out your prep.