Amazon vs Deloitte Interview Questions
Amazon lists 1,968 LeetCode interview questions while Deloitte lists 43. They share 41 problems — 2% of Amazon's bank and 95% of Deloitte's. Focus on the overlap first, then drill into 1,927 Amazon-only and 2 Deloitte-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 41 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Amazon and Deloitte.
Step 2 — Company-specific depth: Add Amazon-specific problems like LRU Cache, Trapping Rain Water, Number of Islands and Deloitte-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Amazon skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
41 Shared Questions
High-priority problems to practice for both Amazon and Deloitte.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| 3Sum | Medium |
| Longest Palindromic Substring | Medium |
| Merge Intervals | Medium |
| Container With Most Water | Medium |
| Valid Parentheses | Easy |
| Merge k Sorted Lists | Hard |
| Longest Common Prefix | Easy |
| Subarray Sum Equals K | Medium |
| Maximum Subarray | Medium |
| Longest Consecutive Sequence | Medium |
| Palindrome Number | Easy |
| Climbing Stairs | Easy |
| Valid Anagram | Easy |
| Next Permutation | Medium |
| Coin Change | Medium |
| Kth Largest Element in an Array | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Roman to Integer | Easy |
| Rotate Array | Medium |
| First Unique Character in a String | Easy |
| Valid Palindrome | Easy |
| Edit Distance | Medium |
| Split Array Largest Sum | Hard |
| Max Consecutive Ones | Easy |
| Add Binary | Easy |
| Second Highest Salary | Medium |
Showing top 30 of 41 shared problems.
Unique to Amazon (1,927)
Problems in Amazon's list that do not appear at Deloitte.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Trapping Rain Water | Hard |
| Number of Islands | Medium |
| Add Two Numbers | Medium |
| Reorganize String | Medium |
| Median of Two Sorted Arrays | Hard |
| Koko Eating Bananas | Medium |
| Course Schedule | Medium |
| Rotting Oranges | Medium |
| Merge Sorted Array | Easy |
| Search in Rotated Sorted Array | Medium |
| Top K Frequent Elements | Medium |
Unique to Deloitte (2)
Problems in Deloitte's list that do not appear at Amazon.
| Problem | Difficulty |
|---|---|
| Change Null Values in a Table to the Previous Value | Medium |
| Remove K-Balanced Substrings | Medium |
Frequently Asked Questions
How many LeetCode questions do Amazon and Deloitte share?
Amazon and Deloitte share 41 LeetCode interview questions. 1927 problems appear only in Amazon's list and 2 appear only in Deloitte's list.
What topics overlap most between Amazon and Deloitte?
The most common shared topics between Amazon and Deloitte are Array (17 shared questions), String (11 shared questions), Hash Table (8 shared questions), Dynamic Programming (7 shared questions), Two Pointers (7 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Amazon or Deloitte?
Amazon has 527 Easy, 1074 Medium, and 367 Hard questions. Deloitte has 17 Easy, 23 Medium, and 3 Hard questions. Amazon has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Amazon and Deloitte?
Start with the 41 shared problems since they cover what both companies ask most often. Then add 20 Amazon-specific and 2 Deloitte-specific questions to round out your prep.