DoorDash vs Lyft Interview Questions
DoorDash lists 78 LeetCode interview questions while Lyft lists 26. They share 4 problems — 5% of DoorDash's bank and 15% of Lyft's. Focus on the overlap first, then drill into 74 DoorDash-only and 22 Lyft-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 DoorDash and Lyft.
Step 2 — Company-specific depth: Add DoorDash-specific problems like Walls and Gates, Longest Increasing Path in a Matrix, Binary Tree Maximum Path Sum and Lyft-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
4 Shared Questions
High-priority problems to practice for both DoorDash and Lyft.
| Problem | Difficulty |
|---|---|
| Implement Trie (Prefix Tree) | Medium |
| Asteroid Collision | Medium |
| Range Sum Query 2D - Immutable | Medium |
| Rotting Oranges | Medium |
Unique to DoorDash (74)
Problems in DoorDash's list that do not appear at Lyft.
Unique to Lyft (22)
Problems in Lyft's list that do not appear at DoorDash.
| Problem | Difficulty |
|---|---|
| Time Based Key-Value Store | Medium |
| Read N Characters Given read4 II - Call Multiple Times | Hard |
| Minimum Window Substring | Hard |
| Max Stack | Hard |
| Convert Sorted List to Binary Search Tree | Medium |
| Check Completeness of a Binary Tree | Medium |
| Car Pooling | Medium |
| String Compression | Medium |
| Smallest Range Covering Elements from K Lists | Hard |
| Min Stack | Medium |
| Word Ladder II | Hard |
| Longest Consecutive Sequence | Medium |
Frequently Asked Questions
How many LeetCode questions do DoorDash and Lyft share?
DoorDash and Lyft share 4 LeetCode interview questions. 74 problems appear only in DoorDash's list and 22 appear only in Lyft's list.
What topics overlap most between DoorDash and Lyft?
The most common shared topics between DoorDash and Lyft are Array (3 shared questions), Design (2 shared questions), Matrix (2 shared questions), Hash Table (1 shared questions), String (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: DoorDash or Lyft?
DoorDash has 7 Easy, 45 Medium, and 26 Hard questions. Lyft has 0 Easy, 19 Medium, and 7 Hard questions. DoorDash has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both DoorDash and Lyft?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 20 DoorDash-specific and 20 Lyft-specific questions to round out your prep.