DoorDash vs Intel Interview Questions
DoorDash lists 78 LeetCode interview questions while Intel lists 25. They share 4 problems — 5% of DoorDash's bank and 16% of Intel's. Focus on the overlap first, then drill into 74 DoorDash-only and 21 Intel-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 Intel.
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 Intel-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 Intel.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Number of Islands | Medium |
| LRU Cache | Medium |
| Add Two Numbers | Medium |
Unique to DoorDash (74)
Problems in DoorDash's list that do not appear at Intel.
Unique to Intel (21)
Problems in Intel's list that do not appear at DoorDash.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Find Consecutive Integers from a Data Stream | Medium |
| Maximum Nesting Depth of the Parentheses | Easy |
| Valid Parentheses | Easy |
| Copy List with Random Pointer | Medium |
| Count Primes | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| Reverse Integer | Medium |
| Maximum Subarray | Medium |
| Climbing Stairs | Easy |
| Merge Two Sorted Lists | Easy |
Frequently Asked Questions
How many LeetCode questions do DoorDash and Intel share?
DoorDash and Intel share 4 LeetCode interview questions. 74 problems appear only in DoorDash's list and 21 appear only in Intel's list.
What topics overlap most between DoorDash and Intel?
The most common shared topics between DoorDash and Intel are Array (2 shared questions), Hash Table (2 shared questions), Linked List (2 shared questions), Depth-First Search (1 shared questions), Breadth-First Search (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: DoorDash or Intel?
DoorDash has 7 Easy, 45 Medium, and 26 Hard questions. Intel has 10 Easy, 14 Medium, and 1 Hard questions. DoorDash has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both DoorDash and Intel?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 20 DoorDash-specific and 20 Intel-specific questions to round out your prep.