DoorDash vs Zeta Interview Questions
DoorDash lists 78 LeetCode interview questions while Zeta lists 30. They share 3 problems — 4% of DoorDash's bank and 10% of Zeta's. Focus on the overlap first, then drill into 75 DoorDash-only and 27 Zeta-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 3 overlapping problems first. These are the highest-yield questions for candidates interviewing at both DoorDash and Zeta.
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 Zeta-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Zeta skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
3 Shared Questions
High-priority problems to practice for both DoorDash and Zeta.
| Problem | Difficulty |
|---|---|
| Sliding Window Maximum | Hard |
| Insert Delete GetRandom O(1) | Medium |
| Merge Intervals | Medium |
Unique to DoorDash (75)
Problems in DoorDash's list that do not appear at Zeta.
Unique to Zeta (27)
Problems in Zeta's list that do not appear at DoorDash.
Frequently Asked Questions
How many LeetCode questions do DoorDash and Zeta share?
DoorDash and Zeta share 3 LeetCode interview questions. 75 problems appear only in DoorDash's list and 27 appear only in Zeta's list.
What topics overlap most between DoorDash and Zeta?
The most common shared topics between DoorDash and Zeta are Array (3 shared questions), Queue (1 shared questions), Sliding Window (1 shared questions), Heap (Priority Queue) (1 shared questions), Monotonic Queue (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: DoorDash or Zeta?
DoorDash has 7 Easy, 45 Medium, and 26 Hard questions. Zeta has 0 Easy, 20 Medium, and 10 Hard questions. Zeta has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both DoorDash and Zeta?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 DoorDash-specific and 20 Zeta-specific questions to round out your prep.