Waymo vs X Interview Questions
Waymo lists 25 LeetCode interview questions while X lists 51. They share 3 problems — 12% of Waymo's bank and 6% of X's. Focus on the overlap first, then drill into 22 Waymo-only and 48 X-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 3 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Waymo and X.
Step 2 — Company-specific depth: Add Waymo-specific problems like Number of Islands, Random Pick with Weight, Logger Rate Limiter and X-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
3 Shared Questions
High-priority problems to practice for both Waymo and X.
| Problem | Difficulty |
|---|---|
| Max Points on a Line | Hard |
| Regular Expression Matching | Hard |
| Alien Dictionary | Hard |
Unique to Waymo (22)
Problems in Waymo's list that do not appear at X.
| Problem | Difficulty |
|---|---|
| Number of Islands | Medium |
| Random Pick with Weight | Medium |
| Logger Rate Limiter | Easy |
| 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 |
Unique to X (48)
Problems in X's list that do not appear at Waymo.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Merge Intervals | Medium |
| Tweet Counts Per Frequency | Medium |
| LRU Cache | Medium |
| Flatten Nested List Iterator | Medium |
| Implement Trie (Prefix Tree) | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Design Twitter | Medium |
| Binary Gap | Easy |
| Integer to Roman | Medium |
| Word Break II | Hard |
| Time Needed to Buy Tickets | Easy |
Frequently Asked Questions
How many LeetCode questions do Waymo and X share?
Waymo and X share 3 LeetCode interview questions. 22 problems appear only in Waymo's list and 48 appear only in X's list.
What topics overlap most between Waymo and X?
The most common shared topics between Waymo and X are Array (2 shared questions), String (2 shared questions), Hash Table (1 shared questions), Math (1 shared questions), Geometry (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Waymo or X?
Waymo has 1 Easy, 13 Medium, and 11 Hard questions. X has 8 Easy, 31 Medium, and 12 Hard questions. Waymo has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Waymo and X?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 Waymo-specific and 20 X-specific questions to round out your prep.