Snapchat vs Waymo Interview Questions
Snapchat lists 99 LeetCode interview questions while Waymo lists 25. They share 6 problems — 6% of Snapchat's bank and 24% of Waymo's. Focus on the overlap first, then drill into 93 Snapchat-only and 19 Waymo-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 6 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Snapchat and Waymo.
Step 2 — Company-specific depth: Add Snapchat-specific problems like LRU Cache, Valid Sudoku, Sudoku Solver 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
6 Shared Questions
High-priority problems to practice for both Snapchat and Waymo.
| Problem | Difficulty |
|---|---|
| Meeting Rooms II | Medium |
| Number of Islands | Medium |
| Alien Dictionary | Hard |
| Minimum Area Rectangle | Medium |
| Random Pick with Weight | Medium |
| Car Fleet | Medium |
Unique to Snapchat (93)
Problems in Snapchat's list that do not appear at Waymo.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Valid Sudoku | Medium |
| Sudoku Solver | Hard |
| Combination Sum | Medium |
| Combination Sum II | Medium |
| Wildcard Matching | Hard |
| Minimum Window Substring | Hard |
| Unique Binary Search Trees | Medium |
| Word Ladder | Hard |
| Word Break II | Hard |
| Reverse Words in a String | Medium |
| Min Stack | Medium |
Unique to Waymo (19)
Problems in Waymo's list that do not appear at Snapchat.
| Problem | Difficulty |
|---|---|
| Max Points on a Line | Hard |
| Logger Rate Limiter | Easy |
| Number of Visible People in a Queue | Hard |
| Minimum Number of Refueling Stops | Hard |
| Minimum Knight Moves | 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 |
| Find Peak Element | Medium |
| Text Justification | Hard |
Frequently Asked Questions
How many LeetCode questions do Snapchat and Waymo share?
Snapchat and Waymo share 6 LeetCode interview questions. 93 problems appear only in Snapchat's list and 19 appear only in Waymo's list.
What topics overlap most between Snapchat and Waymo?
The most common shared topics between Snapchat and Waymo are Array (4 shared questions), Math (2 shared questions), Sorting (2 shared questions), Depth-First Search (1 shared questions), Breadth-First Search (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Snapchat or Waymo?
Snapchat has 6 Easy, 62 Medium, and 31 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 Snapchat and Waymo?
Start with the 6 shared problems since they cover what both companies ask most often. Then add 20 Snapchat-specific and 19 Waymo-specific questions to round out your prep.