Oracle vs Samsung Interview Questions
Oracle lists 314 LeetCode interview questions while Samsung lists 65. They share 36 problems — 11% of Oracle's bank and 55% of Samsung's. Focus on the overlap first, then drill into 278 Oracle-only and 29 Samsung-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 36 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Oracle and Samsung.
Step 2 — Company-specific depth: Add Oracle-specific problems like Longest Substring Without Repeating Characters, Group Anagrams, Top K Frequent Elements and Samsung-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Samsung skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
36 Shared Questions
High-priority problems to practice for both Oracle and Samsung.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Two Sum | Easy |
| Valid Parentheses | Easy |
| Merge k Sorted Lists | Hard |
| Merge Intervals | Medium |
| Longest Palindromic Substring | Medium |
| Search in Rotated Sorted Array | Medium |
| 3Sum | Medium |
| Trapping Rain Water | Hard |
| Rotting Oranges | Medium |
| Maximum Subarray | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Generate Parentheses | Medium |
| Longest Common Prefix | Easy |
| Sort Colors | Medium |
| Median of Two Sorted Arrays | Hard |
| Coin Change | Medium |
| Vertical Order Traversal of a Binary Tree | Hard |
| Word Ladder | Hard |
| Move Zeroes | Easy |
| Longest Increasing Subsequence | Medium |
| Word Search | Medium |
| Next Permutation | Medium |
| Rotate Image | Medium |
| Permutations | Medium |
| Divide Two Integers | Medium |
| Subarray Product Less Than K | Medium |
| Merge Sorted Array | Easy |
| Jump Game II | Medium |
Showing top 30 of 36 shared problems.
Unique to Oracle (278)
Problems in Oracle's list that do not appear at Samsung.
| Problem | Difficulty |
|---|---|
| Longest Substring Without Repeating Characters | Medium |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Sliding Window Maximum | Hard |
| Meeting Rooms II | Medium |
| Spiral Matrix | Medium |
| Minimum One Bit Operations to Make Integers Zero | Hard |
| LFU Cache | Hard |
| Asteroid Collision | Medium |
| Remove All Adjacent Duplicates in String II | Medium |
| Container With Most Water | Medium |
| Reverse Linked List | Easy |
Unique to Samsung (29)
Problems in Samsung's list that do not appear at Oracle.
Frequently Asked Questions
How many LeetCode questions do Oracle and Samsung share?
Oracle and Samsung share 36 LeetCode interview questions. 278 problems appear only in Oracle's list and 29 appear only in Samsung's list.
What topics overlap most between Oracle and Samsung?
The most common shared topics between Oracle and Samsung are Array (22 shared questions), Dynamic Programming (8 shared questions), Two Pointers (7 shared questions), String (6 shared questions), Breadth-First Search (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Oracle or Samsung?
Oracle has 61 Easy, 194 Medium, and 59 Hard questions. Samsung has 12 Easy, 36 Medium, and 17 Hard questions. Samsung has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Oracle and Samsung?
Start with the 36 shared problems since they cover what both companies ask most often. Then add 20 Oracle-specific and 20 Samsung-specific questions to round out your prep.