Deloitte vs DoorDash Interview Questions
Deloitte lists 43 LeetCode interview questions while DoorDash lists 78. They share 7 problems — 16% of Deloitte's bank and 9% of DoorDash's. Focus on the overlap first, then drill into 36 Deloitte-only and 71 DoorDash-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 7 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Deloitte and DoorDash.
Step 2 — Company-specific depth: Add Deloitte-specific problems like Change Null Values in a Table to the Previous Value, Second Highest Salary, Valid Parentheses 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
7 Shared Questions
High-priority problems to practice for both Deloitte and DoorDash.
| Problem | Difficulty |
|---|---|
| Merge k Sorted Lists | Hard |
| Two Sum | Easy |
| Longest Palindromic Substring | Medium |
| Merge Intervals | Medium |
| Group Anagrams | Medium |
| Roman to Integer | Easy |
| Next Permutation | Medium |
Unique to Deloitte (36)
Problems in Deloitte's list that do not appear at DoorDash.
Unique to DoorDash (71)
Problems in DoorDash's list that do not appear at Deloitte.
Frequently Asked Questions
How many LeetCode questions do Deloitte and DoorDash share?
Deloitte and DoorDash share 7 LeetCode interview questions. 36 problems appear only in Deloitte's list and 71 appear only in DoorDash's list.
What topics overlap most between Deloitte and DoorDash?
The most common shared topics between Deloitte and DoorDash are Array (4 shared questions), Hash Table (3 shared questions), String (3 shared questions), Two Pointers (2 shared questions), Sorting (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Deloitte or DoorDash?
Deloitte has 17 Easy, 23 Medium, and 3 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 Deloitte and DoorDash?
Start with the 7 shared problems since they cover what both companies ask most often. Then add 20 Deloitte-specific and 20 DoorDash-specific questions to round out your prep.