Oracle vs Roblox Interview Questions
Oracle lists 314 LeetCode interview questions while Roblox lists 56. They share 25 problems — 8% of Oracle's bank and 45% of Roblox's. Focus on the overlap first, then drill into 289 Oracle-only and 31 Roblox-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 25 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Oracle and Roblox.
Step 2 — Company-specific depth: Add Oracle-specific problems like LRU Cache, Number of Islands, Group Anagrams 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
25 Shared Questions
High-priority problems to practice for both Oracle and Roblox.
| Problem | Difficulty |
|---|---|
| Longest Substring Without Repeating Characters | Medium |
| Two Sum | Easy |
| Sliding Window Maximum | Hard |
| Valid Parentheses | Easy |
| Merge Intervals | Medium |
| Spiral Matrix | Medium |
| Trapping Rain Water | Hard |
| Longest Consecutive Sequence | Medium |
| Rotting Oranges | Medium |
| Course Schedule | Medium |
| Longest Common Prefix | Easy |
| Implement Trie (Prefix Tree) | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Task Scheduler | Medium |
| Logger Rate Limiter | Easy |
| Rotate Image | Medium |
| Course Schedule II | Medium |
| Reorganize String | Medium |
| Integer to English Words | Hard |
| Convert Binary Number in a Linked List to Integer | Easy |
| Text Justification | Hard |
| Count Number of Nice Subarrays | Medium |
| Subarrays with K Different Integers | Hard |
| Largest Rectangle in Histogram | Hard |
| Design Hit Counter | Medium |
Unique to Oracle (289)
Problems in Oracle's list that do not appear at Roblox.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Merge k Sorted Lists | Hard |
| Meeting Rooms II | Medium |
| Longest Palindromic Substring | Medium |
| Minimum One Bit Operations to Make Integers Zero | Hard |
| LFU Cache | Hard |
| Search in Rotated Sorted Array | Medium |
| Asteroid Collision | Medium |
| Remove All Adjacent Duplicates in String II | Medium |
Unique to Roblox (31)
Problems in Roblox's list that do not appear at Oracle.
Frequently Asked Questions
How many LeetCode questions do Oracle and Roblox share?
Oracle and Roblox share 25 LeetCode interview questions. 289 problems appear only in Oracle's list and 31 appear only in Roblox's list.
What topics overlap most between Oracle and Roblox?
The most common shared topics between Oracle and Roblox are Array (16 shared questions), Hash Table (10 shared questions), String (7 shared questions), Math (5 shared questions), Sliding Window (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Oracle or Roblox?
Oracle has 61 Easy, 194 Medium, and 59 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 Oracle and Roblox?
Start with the 25 shared problems since they cover what both companies ask most often. Then add 20 Oracle-specific and 20 Roblox-specific questions to round out your prep.