DoorDash vs Rippling Interview Questions
DoorDash lists 78 LeetCode interview questions while Rippling lists 23. They share 5 problems — 6% of DoorDash's bank and 22% of Rippling's. Focus on the overlap first, then drill into 73 DoorDash-only and 18 Rippling-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 5 overlapping problems first. These are the highest-yield questions for candidates interviewing at both DoorDash and Rippling.
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 Rippling-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Rippling skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
5 Shared Questions
High-priority problems to practice for both DoorDash and Rippling.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Merge k Sorted Lists | Hard |
| Merge Intervals | Medium |
| Number of Visible People in a Queue | Hard |
| LFU Cache | Hard |
Unique to DoorDash (73)
Problems in DoorDash's list that do not appear at Rippling.
Unique to Rippling (18)
Problems in Rippling's list that do not appear at DoorDash.
| Problem | Difficulty |
|---|---|
| Median of Two Sorted Arrays | Hard |
| Design Spreadsheet | Medium |
| Design Excel Sum Formula | Hard |
| Evaluate Division | Medium |
| Merge Two Sorted Lists | Easy |
| Optimal Account Balancing | Hard |
| Maximize Amount After Two Days of Conversions | Medium |
| Maximum Xor Product | Medium |
| Accounts Merge | Medium |
| Synonymous Sentences | Medium |
| Last Stone Weight | Easy |
| Minimum Number of Taps to Open to Water a Garden | Hard |
Frequently Asked Questions
How many LeetCode questions do DoorDash and Rippling share?
DoorDash and Rippling share 5 LeetCode interview questions. 73 problems appear only in DoorDash's list and 18 appear only in Rippling's list.
What topics overlap most between DoorDash and Rippling?
The most common shared topics between DoorDash and Rippling are Linked List (3 shared questions), Hash Table (2 shared questions), Design (2 shared questions), Doubly-Linked List (2 shared questions), Array (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: DoorDash or Rippling?
DoorDash has 7 Easy, 45 Medium, and 26 Hard questions. Rippling has 2 Easy, 13 Medium, and 8 Hard questions. Rippling has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both DoorDash and Rippling?
Start with the 5 shared problems since they cover what both companies ask most often. Then add 20 DoorDash-specific and 18 Rippling-specific questions to round out your prep.