Deloitte vs Morgan Stanley Interview Questions
Deloitte lists 43 LeetCode interview questions while Morgan Stanley lists 60. They share 15 problems — 35% of Deloitte's bank and 25% of Morgan Stanley's. Focus on the overlap first, then drill into 28 Deloitte-only and 45 Morgan Stanley-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 15 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Deloitte and Morgan Stanley.
Step 2 — Company-specific depth: Add Deloitte-specific problems like Merge k Sorted Lists, Change Null Values in a Table to the Previous Value, Second Highest Salary and Morgan Stanley-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Morgan Stanley skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
15 Shared Questions
High-priority problems to practice for both Deloitte and Morgan Stanley.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Longest Palindromic Substring | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Container With Most Water | Medium |
| Palindrome Number | Easy |
| Merge Intervals | Medium |
| First Unique Character in a String | Easy |
| 3Sum | Medium |
| Maximum Subarray | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Group Anagrams | Medium |
| Coin Change | Medium |
| Kth Largest Element in an Array | Medium |
| Longest Consecutive Sequence | Medium |
Unique to Deloitte (28)
Problems in Deloitte's list that do not appear at Morgan Stanley.
| Problem | Difficulty |
|---|---|
| Merge k Sorted Lists | Hard |
| Change Null Values in a Table to the Previous Value | Medium |
| Second Highest Salary | Medium |
| Valid Parentheses | Easy |
| Longest Common Prefix | Easy |
| Climbing Stairs | Easy |
| Valid Palindrome | Easy |
| Add Binary | Easy |
| Managers with at Least 5 Direct Reports | Medium |
| Minimum Time to Repair Cars | Medium |
| Nth Highest Salary | Medium |
| Remove K Digits | Medium |
Unique to Morgan Stanley (45)
Problems in Morgan Stanley's list that do not appear at Deloitte.
Frequently Asked Questions
How many LeetCode questions do Deloitte and Morgan Stanley share?
Deloitte and Morgan Stanley share 15 LeetCode interview questions. 28 problems appear only in Deloitte's list and 45 appear only in Morgan Stanley's list.
What topics overlap most between Deloitte and Morgan Stanley?
The most common shared topics between Deloitte and Morgan Stanley are Array (11 shared questions), Hash Table (5 shared questions), String (4 shared questions), Two Pointers (4 shared questions), Dynamic Programming (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Deloitte or Morgan Stanley?
Deloitte has 17 Easy, 23 Medium, and 3 Hard questions. Morgan Stanley has 13 Easy, 40 Medium, and 7 Hard questions. Morgan Stanley has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Deloitte and Morgan Stanley?
Start with the 15 shared problems since they cover what both companies ask most often. Then add 20 Deloitte-specific and 20 Morgan Stanley-specific questions to round out your prep.