Oracle vs Uber Interview Questions
Oracle lists 314 LeetCode interview questions while Uber lists 362. They share 125 problems — 40% of Oracle's bank and 35% of Uber's. Focus on the overlap first, then drill into 189 Oracle-only and 237 Uber-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 125 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Oracle and Uber.
Step 2 — Company-specific depth: Add Oracle-specific problems like Minimum One Bit Operations to Make Integers Zero, Remove All Adjacent Duplicates in String II, 3Sum and Uber-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Uber skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
125 Shared Questions
High-priority problems to practice for both Oracle and Uber.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Number of Islands | Medium |
| Two Sum | Easy |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Sliding Window Maximum | Hard |
| Valid Parentheses | Easy |
| Merge k Sorted Lists | Hard |
| Merge Intervals | Medium |
| Meeting Rooms II | Medium |
| Longest Palindromic Substring | Medium |
| Spiral Matrix | Medium |
| LFU Cache | Hard |
| Search in Rotated Sorted Array | Medium |
| Asteroid Collision | Medium |
| Container With Most Water | Medium |
| Reverse Linked List | Easy |
| Trapping Rain Water | Hard |
| Longest Consecutive Sequence | Medium |
| Min Stack | Medium |
| Valid Anagram | Easy |
| Rotting Oranges | Medium |
| Maximum Subarray | Medium |
| Roman to Integer | Easy |
| Koko Eating Bananas | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Binary Tree Right Side View | Medium |
| Generate Parentheses | Medium |
| Course Schedule | Medium |
Showing top 30 of 125 shared problems.
Unique to Oracle (189)
Problems in Oracle's list that do not appear at Uber.
Unique to Uber (237)
Problems in Uber's list that do not appear at Oracle.
Frequently Asked Questions
How many LeetCode questions do Oracle and Uber share?
Oracle and Uber share 125 LeetCode interview questions. 189 problems appear only in Oracle's list and 237 appear only in Uber's list.
What topics overlap most between Oracle and Uber?
The most common shared topics between Oracle and Uber are Array (17 shared questions), Hash Table (9 shared questions), String (7 shared questions), Sorting (5 shared questions), Dynamic Programming (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Oracle or Uber?
Oracle has 61 Easy, 194 Medium, and 59 Hard questions. Uber has 45 Easy, 215 Medium, and 102 Hard questions. Uber has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Oracle and Uber?
Start with the 125 shared problems since they cover what both companies ask most often. Then add 20 Oracle-specific and 20 Uber-specific questions to round out your prep.