Oracle vs Tesla Interview Questions
Oracle lists 314 LeetCode interview questions while Tesla lists 41. They share 26 problems — 8% of Oracle's bank and 63% of Tesla's. Focus on the overlap first, then drill into 288 Oracle-only and 15 Tesla-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 26 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Oracle and Tesla.
Step 2 — Company-specific depth: Add Oracle-specific problems like Group Anagrams, Sliding Window Maximum, Merge k Sorted Lists and Tesla-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Oracle skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
26 Shared Questions
High-priority problems to practice for both Oracle and Tesla.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Number of Islands | Medium |
| Two Sum | Easy |
| Top K Frequent Elements | Medium |
| Valid Parentheses | Easy |
| Merge Intervals | Medium |
| Container With Most Water | Medium |
| 3Sum | Medium |
| Trapping Rain Water | Hard |
| Longest Consecutive Sequence | Medium |
| Valid Anagram | Easy |
| Maximum Subarray | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Course Schedule | Medium |
| Median of Two Sorted Arrays | Hard |
| First Missing Positive | Hard |
| Logger Rate Limiter | Easy |
| Word Ladder | Hard |
| Letter Combinations of a Phone Number | Medium |
| Rotate Image | Medium |
| Reorganize String | Medium |
| Basic Calculator II | Medium |
| Evaluate Reverse Polish Notation | Medium |
| Design Circular Queue | Medium |
| Happy Number | Easy |
Unique to Oracle (288)
Problems in Oracle's list that do not appear at Tesla.
| Problem | Difficulty |
|---|---|
| Group Anagrams | Medium |
| Sliding Window Maximum | Hard |
| Merge k Sorted Lists | Hard |
| Meeting Rooms II | Medium |
| Longest Palindromic Substring | Medium |
| Spiral Matrix | 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 |
| Reverse Linked List | Easy |
Unique to Tesla (15)
Problems in Tesla's list that do not appear at Oracle.
| Problem | Difficulty |
|---|---|
| Minimum Changes To Make Alternating Binary String | Easy |
| Find Followers Count | Easy |
| Building H2O | Medium |
| Rectangle Area | Medium |
| Snakes and Ladders | Medium |
| Evaluate Division | Medium |
| Shortest Bridge | Medium |
| Design Memory Allocator | Medium |
| Flatten Nested List Iterator | Medium |
| Design Tic-Tac-Toe | Medium |
| UTF-8 Validation | Medium |
| Design Parking System | Easy |
Frequently Asked Questions
How many LeetCode questions do Oracle and Tesla share?
Oracle and Tesla share 26 LeetCode interview questions. 288 problems appear only in Oracle's list and 15 appear only in Tesla's list.
What topics overlap most between Oracle and Tesla?
The most common shared topics between Oracle and Tesla are Array (15 shared questions), Hash Table (12 shared questions), String (7 shared questions), Sorting (5 shared questions), Stack (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Oracle or Tesla?
Oracle has 61 Easy, 194 Medium, and 59 Hard questions. Tesla has 10 Easy, 26 Medium, and 5 Hard questions. Oracle has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Oracle and Tesla?
Start with the 26 shared problems since they cover what both companies ask most often. Then add 20 Oracle-specific and 15 Tesla-specific questions to round out your prep.