DE Shaw vs Deloitte Interview Questions
DE Shaw lists 105 LeetCode interview questions while Deloitte lists 43. They share 8 problems — 8% of DE Shaw's bank and 19% of Deloitte's. Focus on the overlap first, then drill into 97 DE Shaw-only and 35 Deloitte-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 8 overlapping problems first. These are the highest-yield questions for candidates interviewing at both DE Shaw and Deloitte.
Step 2 — Company-specific depth: Add DE Shaw-specific problems like Binary Tree Cameras, Find Minimum Cost to Remove Array Elements, Maximum Number of Subsequences After One Inserting and Deloitte-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: DE Shaw skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
8 Shared Questions
High-priority problems to practice for both DE Shaw and Deloitte.
| Problem | Difficulty |
|---|---|
| Valid Parentheses | Easy |
| Longest Consecutive Sequence | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Split Array Largest Sum | Hard |
| Container With Most Water | Medium |
| Two Sum | Easy |
| Next Permutation | Medium |
Unique to DE Shaw (97)
Problems in DE Shaw's list that do not appear at Deloitte.
Unique to Deloitte (35)
Problems in Deloitte's list that do not appear at DE Shaw.
| Problem | Difficulty |
|---|---|
| Merge k Sorted Lists | Hard |
| Change Null Values in a Table to the Previous Value | Medium |
| Second Highest Salary | Medium |
| Longest Palindromic Substring | Medium |
| Longest Common Prefix | Easy |
| Palindrome Number | Easy |
| Climbing Stairs | Easy |
| Valid Palindrome | Easy |
| Add Binary | Easy |
| Managers with at Least 5 Direct Reports | Medium |
| Minimum Time to Repair Cars | Medium |
| Merge Intervals | Medium |
Frequently Asked Questions
How many LeetCode questions do DE Shaw and Deloitte share?
DE Shaw and Deloitte share 8 LeetCode interview questions. 97 problems appear only in DE Shaw's list and 35 appear only in Deloitte's list.
What topics overlap most between DE Shaw and Deloitte?
The most common shared topics between DE Shaw and Deloitte are Array (6 shared questions), Hash Table (3 shared questions), String (2 shared questions), Dynamic Programming (2 shared questions), Greedy (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: DE Shaw or Deloitte?
DE Shaw has 11 Easy, 64 Medium, and 30 Hard questions. Deloitte has 17 Easy, 23 Medium, and 3 Hard questions. DE Shaw has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both DE Shaw and Deloitte?
Start with the 8 shared problems since they cover what both companies ask most often. Then add 20 DE Shaw-specific and 20 Deloitte-specific questions to round out your prep.