Arista Networks vs DoorDash Interview Questions
Arista Networks lists 39 LeetCode interview questions while DoorDash lists 78. They share 3 problems — 8% of Arista Networks's bank and 4% of DoorDash's. Focus on the overlap first, then drill into 36 Arista Networks-only and 75 DoorDash-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 Arista Networks and DoorDash.
Step 2 — Company-specific depth: Add Arista Networks-specific problems like Construct String With Repeat Limit, Find the Town Judge, Reverse Nodes in k-Group 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
3 Shared Questions
High-priority problems to practice for both Arista Networks and DoorDash.
| Problem | Difficulty |
|---|---|
| Course Schedule II | Medium |
| LRU Cache | Medium |
| Longest Palindromic Substring | Medium |
Unique to Arista Networks (36)
Problems in Arista Networks's list that do not appear at DoorDash.
| Problem | Difficulty |
|---|---|
| Construct String With Repeat Limit | Medium |
| Find the Town Judge | Easy |
| Reverse Nodes in k-Group | Hard |
| Restore IP Addresses | Medium |
| Reorder List | Medium |
| Reverse Linked List II | Medium |
| Remove Linked List Elements | Easy |
| Contains Duplicate II | Easy |
| Inorder Successor in BST II | Medium |
| Maximum Depth of Binary Tree | Easy |
| Copy List with Random Pointer | Medium |
| Missing Number | Easy |
Unique to DoorDash (75)
Problems in DoorDash's list that do not appear at Arista Networks.
Frequently Asked Questions
How many LeetCode questions do Arista Networks and DoorDash share?
Arista Networks and DoorDash share 3 LeetCode interview questions. 36 problems appear only in Arista Networks's list and 75 appear only in DoorDash's list.
What topics overlap most between Arista Networks and DoorDash?
The most common shared topics between Arista Networks and DoorDash are Depth-First Search (1 shared questions), Breadth-First Search (1 shared questions), Graph Theory (1 shared questions), Topological Sort (1 shared questions), Hash Table (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Arista Networks or DoorDash?
Arista Networks has 12 Easy, 26 Medium, and 1 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 Arista Networks and DoorDash?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 Arista Networks-specific and 20 DoorDash-specific questions to round out your prep.