DE Shaw vs DoorDash Interview Questions
DE Shaw lists 105 LeetCode interview questions while DoorDash lists 78. They share 13 problems — 12% of DE Shaw's bank and 17% of DoorDash's. Focus on the overlap first, then drill into 92 DE Shaw-only and 65 DoorDash-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 13 overlapping problems first. These are the highest-yield questions for candidates interviewing at both DE Shaw and DoorDash.
Step 2 — Company-specific depth: Add DE Shaw-specific problems like Binary Tree Cameras, Find Minimum Cost to Remove Array Elements, Maximum Number of Subsequences After One Inserting and DoorDash-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
13 Shared Questions
High-priority problems to practice for both DE Shaw and DoorDash.
| Problem | Difficulty |
|---|---|
| Insert Delete GetRandom O(1) | Medium |
| Sliding Window Maximum | Hard |
| Koko Eating Bananas | Medium |
| Rotting Oranges | Medium |
| LRU Cache | Medium |
| Asteroid Collision | Medium |
| Number of Islands | Medium |
| Basic Calculator II | Medium |
| Word Search II | Hard |
| Minimum Size Subarray Sum | Medium |
| Two Sum | Easy |
| 4Sum | Medium |
| Next Permutation | Medium |
Unique to DE Shaw (92)
Problems in DE Shaw's list that do not appear at DoorDash.
Unique to DoorDash (65)
Problems in DoorDash's list that do not appear at DE Shaw.
Frequently Asked Questions
How many LeetCode questions do DE Shaw and DoorDash share?
DE Shaw and DoorDash share 13 LeetCode interview questions. 92 problems appear only in DE Shaw's list and 65 appear only in DoorDash's list.
What topics overlap most between DE Shaw and DoorDash?
The most common shared topics between DE Shaw and DoorDash are Array (11 shared questions), Hash Table (3 shared questions), Matrix (3 shared questions), Math (2 shared questions), Design (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: DE Shaw or DoorDash?
DE Shaw has 11 Easy, 64 Medium, and 30 Hard questions. DoorDash has 7 Easy, 45 Medium, and 26 Hard questions. DoorDash has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both DE Shaw and DoorDash?
Start with the 13 shared problems since they cover what both companies ask most often. Then add 20 DE Shaw-specific and 20 DoorDash-specific questions to round out your prep.