DoorDash vs Snap Interview Questions
DoorDash lists 78 LeetCode interview questions while Snap lists 84. They share 21 problems — 27% of DoorDash's bank and 25% of Snap's. Focus on the overlap first, then drill into 57 DoorDash-only and 63 Snap-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 21 overlapping problems first. These are the highest-yield questions for candidates interviewing at both DoorDash and Snap.
Step 2 — Company-specific depth: Add DoorDash-specific problems like Walls and Gates, Longest Increasing Path in a Matrix, Search Suggestions System and Snap-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: DoorDash skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
21 Shared Questions
High-priority problems to practice for both DoorDash and Snap.
| Problem | Difficulty |
|---|---|
| Binary Tree Maximum Path Sum | Hard |
| Koko Eating Bananas | Medium |
| Making A Large Island | Hard |
| Basic Calculator III | Hard |
| Course Schedule II | Medium |
| Basic Calculator | Hard |
| Basic Calculator II | Medium |
| Best Meeting Point | Hard |
| Word Search II | Hard |
| Number of Islands | Medium |
| Sliding Window Median | Hard |
| Course Schedule | Medium |
| Sudoku Solver | Hard |
| Binary Tree Vertical Order Traversal | Medium |
| LRU Cache | Medium |
| Merge k Sorted Lists | Hard |
| Merge Intervals | Medium |
| Design Add and Search Words Data Structure | Medium |
| LFU Cache | Hard |
| Design Browser History | Medium |
| Group Anagrams | Medium |
Unique to DoorDash (57)
Problems in DoorDash's list that do not appear at Snap.
Unique to Snap (63)
Problems in Snap's list that do not appear at DoorDash.
| Problem | Difficulty |
|---|---|
| Meeting Rooms II | Medium |
| Word Ladder | Hard |
| Minimum Window Substring | Hard |
| Design Log Storage System | Medium |
| Number of Distinct Islands | Medium |
| Bus Routes | Hard |
| Word Break II | Hard |
| Combination Sum | Medium |
| Reverse Words in a String | Medium |
| Bricks Falling When Hit | Hard |
| Alien Dictionary | Hard |
| Closest Binary Search Tree Value | Easy |
Frequently Asked Questions
How many LeetCode questions do DoorDash and Snap share?
DoorDash and Snap share 21 LeetCode interview questions. 57 problems appear only in DoorDash's list and 63 appear only in Snap's list.
What topics overlap most between DoorDash and Snap?
The most common shared topics between DoorDash and Snap are Array (10 shared questions), Depth-First Search (7 shared questions), String (6 shared questions), Hash Table (6 shared questions), Breadth-First Search (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: DoorDash or Snap?
DoorDash has 7 Easy, 45 Medium, and 26 Hard questions. Snap has 5 Easy, 52 Medium, and 27 Hard questions. DoorDash has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both DoorDash and Snap?
Start with the 21 shared problems since they cover what both companies ask most often. Then add 20 DoorDash-specific and 20 Snap-specific questions to round out your prep.