Twitter vs Waymo Interview Questions
Twitter lists 53 LeetCode interview questions while Waymo lists 25. They share 4 problems — 8% of Twitter's bank and 16% of Waymo's. Focus on the overlap first, then drill into 49 Twitter-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 Twitter and Waymo.
Step 2 — Company-specific depth: Add Twitter-specific problems like Integer to Roman, Valid Parentheses, Merge k Sorted Lists 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 Twitter and Waymo.
| Problem | Difficulty |
|---|---|
| Regular Expression Matching | Hard |
| Max Points on a Line | Hard |
| Alien Dictionary | Hard |
| Random Pick with Weight | Medium |
Unique to Twitter (49)
Problems in Twitter's list that do not appear at Waymo.
| Problem | Difficulty |
|---|---|
| Integer to Roman | Medium |
| Valid Parentheses | Easy |
| Merge k Sorted Lists | Hard |
| Trapping Rain Water | Hard |
| Multiply Strings | Medium |
| Wildcard Matching | Hard |
| Merge Intervals | Medium |
| Permutation Sequence | Hard |
| Pascal's Triangle | Easy |
| Word Break II | Hard |
| LRU Cache | Medium |
| Time Needed to Buy Tickets | Easy |
Unique to Waymo (21)
Problems in Waymo's list that do not appear at Twitter.
| Problem | Difficulty |
|---|---|
| Number of Islands | 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 |
| Divide Array in Sets of K Consecutive Numbers | Medium |
Frequently Asked Questions
How many LeetCode questions do Twitter and Waymo share?
Twitter and Waymo share 4 LeetCode interview questions. 49 problems appear only in Twitter's list and 21 appear only in Waymo's list.
What topics overlap most between Twitter and Waymo?
The most common shared topics between Twitter and Waymo are Array (2 shared questions), Math (2 shared questions), String (1 shared questions), Dynamic Programming (1 shared questions), Recursion (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Twitter or Waymo?
Twitter has 8 Easy, 33 Medium, and 12 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 Twitter and Waymo?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 20 Twitter-specific and 20 Waymo-specific questions to round out your prep.