Amazon vs Morgan Stanley Interview Questions
Amazon lists 1,968 LeetCode interview questions while Morgan Stanley lists 60. They share 51 problems — 3% of Amazon's bank and 85% of Morgan Stanley's. Focus on the overlap first, then drill into 1,917 Amazon-only and 9 Morgan Stanley-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 51 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Amazon and Morgan Stanley.
Step 2 — Company-specific depth: Add Amazon-specific problems like Trapping Rain Water, Number of Islands, Add Two Numbers and Morgan Stanley-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
51 Shared Questions
High-priority problems to practice for both Amazon and Morgan Stanley.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| LRU Cache | Medium |
| 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 |
| Top K Frequent Elements | Medium |
| Maximum Subarray | Medium |
| Longest Consecutive Sequence | Medium |
| Copy List with Random Pointer | Medium |
| Generate Parentheses | Medium |
| Palindrome Number | Easy |
| Majority Element | Easy |
| Jump Game | Medium |
| Word Search | Medium |
| Spiral Matrix | Medium |
| Coin Change | Medium |
| Kth Largest Element in an Array | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Meeting Rooms II | Medium |
| Sort Colors | Medium |
| Palindrome Linked List | Easy |
| Daily Temperatures | Medium |
| Next Greater Element II | Medium |
| First Unique Character in a String | Easy |
| Candy | Hard |
| Maximum Product Subarray | Medium |
Showing top 30 of 51 shared problems.
Unique to Amazon (1,917)
Problems in Amazon's list that do not appear at Morgan Stanley.
| Problem | Difficulty |
|---|---|
| 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 |
| Valid Parentheses | Easy |
| Course Schedule | Medium |
| Merge k Sorted Lists | Hard |
| Longest Common Prefix | Easy |
| Rotting Oranges | Medium |
| Subarray Sum Equals K | Medium |
Unique to Morgan Stanley (9)
Problems in Morgan Stanley's list that do not appear at Amazon.
Frequently Asked Questions
How many LeetCode questions do Amazon and Morgan Stanley share?
Amazon and Morgan Stanley share 51 LeetCode interview questions. 1917 problems appear only in Amazon's list and 9 appear only in Morgan Stanley's list.
What topics overlap most between Amazon and Morgan Stanley?
The most common shared topics between Amazon and Morgan Stanley are Array (22 shared questions), Hash Table (9 shared questions), Sorting (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 Morgan Stanley?
Amazon has 527 Easy, 1074 Medium, and 367 Hard questions. Morgan Stanley has 13 Easy, 40 Medium, and 7 Hard questions. Amazon has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Amazon and Morgan Stanley?
Start with the 51 shared problems since they cover what both companies ask most often. Then add 20 Amazon-specific and 9 Morgan Stanley-specific questions to round out your prep.