DE Shaw vs Roblox Interview Questions
DE Shaw lists 105 LeetCode interview questions while Roblox lists 56. They share 11 problems — 10% of DE Shaw's bank and 20% of Roblox's. Focus on the overlap first, then drill into 94 DE Shaw-only and 45 Roblox-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 11 overlapping problems first. These are the highest-yield questions for candidates interviewing at both DE Shaw and Roblox.
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 Roblox-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
11 Shared Questions
High-priority problems to practice for both DE Shaw and Roblox.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Valid Parentheses | Easy |
| Insert Delete GetRandom O(1) | Medium |
| Reorganize String | Medium |
| Sliding Window Maximum | Hard |
| Rotting Oranges | Medium |
| Longest Consecutive Sequence | Medium |
| Text Justification | Hard |
| Longest Substring Without Repeating Characters | Medium |
| Number of Ways to Wear Different Hats to Each Other | Hard |
| Two Sum | Easy |
Unique to DE Shaw (94)
Problems in DE Shaw's list that do not appear at Roblox.
Unique to Roblox (45)
Problems in Roblox's list that do not appear at DE Shaw.
| Problem | Difficulty |
|---|---|
| Candy Crush | Medium |
| Maximize Distance to Closest Person | Medium |
| Task Scheduler | Medium |
| Course Schedule II | Medium |
| Design Hit Counter | Medium |
| Design Search Autocomplete System | Hard |
| Integer to English Words | Hard |
| Count Number of Nice Subarrays | Medium |
| Group the People Given the Group Size They Belong To | Medium |
| Rotate Image | Medium |
| Convert Binary Number in a Linked List to Integer | Easy |
| Students and Examinations | Easy |
Frequently Asked Questions
How many LeetCode questions do DE Shaw and Roblox share?
DE Shaw and Roblox share 11 LeetCode interview questions. 94 problems appear only in DE Shaw's list and 45 appear only in Roblox's list.
What topics overlap most between DE Shaw and Roblox?
The most common shared topics between DE Shaw and Roblox are Array (8 shared questions), Hash Table (5 shared questions), String (4 shared questions), Dynamic Programming (2 shared questions), Stack (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: DE Shaw or Roblox?
DE Shaw has 11 Easy, 64 Medium, and 30 Hard questions. Roblox has 8 Easy, 35 Medium, and 13 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 Roblox?
Start with the 11 shared problems since they cover what both companies ask most often. Then add 20 DE Shaw-specific and 20 Roblox-specific questions to round out your prep.