ByteDance vs Oracle Interview Questions
ByteDance lists 64 LeetCode interview questions while Oracle lists 314. They share 46 problems — 72% of ByteDance's bank and 15% of Oracle's. Focus on the overlap first, then drill into 18 ByteDance-only and 268 Oracle-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 46 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ByteDance and Oracle.
Step 2 — Company-specific depth: Add ByteDance-specific problems like Remove Duplicate Letters, Smallest Subsequence of Distinct Characters, First Day Where You Have Been in All the Rooms and Oracle-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
46 Shared Questions
High-priority problems to practice for both ByteDance and Oracle.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Course Schedule | Medium |
| Combination Sum | Medium |
| Basic Calculator II | Medium |
| Merge Intervals | Medium |
| House Robber | Medium |
| Maximal Square | Medium |
| Regular Expression Matching | Hard |
| Top K Frequent Elements | Medium |
| Two Sum | Easy |
| Word Ladder | Hard |
| Longest Increasing Subsequence | Medium |
| Trapping Rain Water | Hard |
| Search in Rotated Sorted Array | Medium |
| Combination Sum II | Medium |
| Rotting Oranges | Medium |
| Add Two Numbers | Medium |
| Basic Calculator | Hard |
| Maximum Subarray | Medium |
| Multiply Strings | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Restore IP Addresses | Medium |
| Decode String | Medium |
| Delete Node in a BST | Medium |
| Single Element in a Sorted Array | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Kth Largest Element in an Array | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Climbing Stairs | Easy |
Showing top 30 of 46 shared problems.
Unique to ByteDance (18)
Problems in ByteDance's list that do not appear at Oracle.
| Problem | Difficulty |
|---|---|
| Remove Duplicate Letters | Medium |
| Smallest Subsequence of Distinct Characters | Medium |
| First Day Where You Have Been in All the Rooms | Medium |
| Shortest Bridge | Medium |
| Design Memory Allocator | Medium |
| Longest Common Subsequence | Medium |
| Maximum Width of Binary Tree | Medium |
| Accounts Merge | Medium |
| Number of Good Leaf Nodes Pairs | Medium |
| Minimum Area Rectangle | Medium |
| Shortest Distance from All Buildings | Hard |
| Longest Repeating Character Replacement | Medium |
Unique to Oracle (268)
Problems in Oracle's list that do not appear at ByteDance.
| Problem | Difficulty |
|---|---|
| Group Anagrams | Medium |
| 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 |
| 3Sum | Medium |
| Reverse Linked List | Easy |
| Longest Consecutive Sequence | Medium |
| Min Stack | Medium |
Frequently Asked Questions
How many LeetCode questions do ByteDance and Oracle share?
ByteDance and Oracle share 46 LeetCode interview questions. 18 problems appear only in ByteDance's list and 268 appear only in Oracle's list.
What topics overlap most between ByteDance and Oracle?
The most common shared topics between ByteDance and Oracle are Array (17 shared questions), String (8 shared questions), Dynamic Programming (8 shared questions), Hash Table (6 shared questions), Math (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: ByteDance or Oracle?
ByteDance has 4 Easy, 51 Medium, and 9 Hard questions. Oracle has 61 Easy, 194 Medium, and 59 Hard questions. Oracle has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both ByteDance and Oracle?
Start with the 46 shared problems since they cover what both companies ask most often. Then add 18 ByteDance-specific and 20 Oracle-specific questions to round out your prep.