ByteDance vs Roblox Interview Questions
ByteDance lists 64 LeetCode interview questions while Roblox lists 56. They share 12 problems — 19% of ByteDance's bank and 21% of Roblox's. Focus on the overlap first, then drill into 52 ByteDance-only and 44 Roblox-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 12 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ByteDance and Roblox.
Step 2 — Company-specific depth: Add ByteDance-specific problems like LRU Cache, Remove Duplicate Letters, Smallest Subsequence of Distinct Characters and Roblox-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Roblox skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
12 Shared Questions
High-priority problems to practice for both ByteDance and Roblox.
| Problem | Difficulty |
|---|---|
| Course Schedule | Medium |
| Merge Intervals | Medium |
| Design Memory Allocator | Medium |
| Two Sum | Easy |
| Trapping Rain Water | Hard |
| Rotting Oranges | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Valid Parentheses | Easy |
| Find the Length of the Longest Common Prefix | Medium |
| Sliding Window Maximum | Hard |
| Text Justification | Hard |
Unique to ByteDance (52)
Problems in ByteDance's list that do not appear at Roblox.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Remove Duplicate Letters | Medium |
| Smallest Subsequence of Distinct Characters | Medium |
| First Day Where You Have Been in All the Rooms | Medium |
| Number of Islands | Medium |
| Combination Sum | Medium |
| Basic Calculator II | Medium |
| Shortest Bridge | Medium |
| House Robber | Medium |
| Maximal Square | Medium |
| Regular Expression Matching | Hard |
| Top K Frequent Elements | Medium |
Unique to Roblox (44)
Problems in Roblox's list that do not appear at ByteDance.
| Problem | Difficulty |
|---|---|
| Candy Crush | Medium |
| Reorganize String | Medium |
| Number of Ways to Wear Different Hats to Each Other | Hard |
| 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 |
Frequently Asked Questions
How many LeetCode questions do ByteDance and Roblox share?
ByteDance and Roblox share 12 LeetCode interview questions. 52 problems appear only in ByteDance's list and 44 appear only in Roblox's list.
What topics overlap most between ByteDance and Roblox?
The most common shared topics between ByteDance and Roblox are Array (9 shared questions), Hash Table (5 shared questions), String (4 shared questions), Breadth-First Search (2 shared questions), Design (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: ByteDance or Roblox?
ByteDance has 4 Easy, 51 Medium, and 9 Hard questions. Roblox has 8 Easy, 35 Medium, and 13 Hard questions. Roblox has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both ByteDance and Roblox?
Start with the 12 shared problems since they cover what both companies ask most often. Then add 20 ByteDance-specific and 20 Roblox-specific questions to round out your prep.