ByteDance vs Twitter Interview Questions
ByteDance lists 64 LeetCode interview questions while Twitter lists 53. They share 10 problems — 16% of ByteDance's bank and 19% of Twitter's. Focus on the overlap first, then drill into 54 ByteDance-only and 43 Twitter-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 10 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ByteDance and Twitter.
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 Twitter-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Twitter skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
10 Shared Questions
High-priority problems to practice for both ByteDance and Twitter.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Merge Intervals | Medium |
| Regular Expression Matching | Hard |
| Trapping Rain Water | Hard |
| Rotting Oranges | Medium |
| Multiply Strings | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Trapping Rain Water II | Hard |
| Merge k Sorted Lists | Hard |
| Valid Parentheses | Easy |
Unique to ByteDance (54)
Problems in ByteDance's list that do not appear at Twitter.
| Problem | Difficulty |
|---|---|
| Remove Duplicate Letters | Medium |
| Smallest Subsequence of Distinct Characters | Medium |
| First Day Where You Have Been in All the Rooms | Medium |
| Number of Islands | Medium |
| Course Schedule | Medium |
| Combination Sum | Medium |
| Basic Calculator II | Medium |
| Shortest Bridge | Medium |
| House Robber | Medium |
| Maximal Square | Medium |
| Top K Frequent Elements | Medium |
| Design Memory Allocator | Medium |
Unique to Twitter (43)
Problems in Twitter's list that do not appear at ByteDance.
| Problem | Difficulty |
|---|---|
| Integer to Roman | Medium |
| Wildcard Matching | Hard |
| Permutation Sequence | Hard |
| Pascal's Triangle | Easy |
| Word Break II | Hard |
| Time Needed to Buy Tickets | Easy |
| Max Points on a Line | Hard |
| One Edit Distance | Medium |
| Happy Number | Easy |
| Reverse Linked List | Easy |
| Implement Trie (Prefix Tree) | Medium |
| The Skyline Problem | Hard |
Frequently Asked Questions
How many LeetCode questions do ByteDance and Twitter share?
ByteDance and Twitter share 10 LeetCode interview questions. 54 problems appear only in ByteDance's list and 43 appear only in Twitter's list.
What topics overlap most between ByteDance and Twitter?
The most common shared topics between ByteDance and Twitter are Array (5 shared questions), String (3 shared questions), Hash Table (2 shared questions), Linked List (2 shared questions), Design (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: ByteDance or Twitter?
ByteDance has 4 Easy, 51 Medium, and 9 Hard questions. Twitter has 8 Easy, 33 Medium, and 12 Hard questions. Twitter has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both ByteDance and Twitter?
Start with the 10 shared problems since they cover what both companies ask most often. Then add 20 ByteDance-specific and 20 Twitter-specific questions to round out your prep.