ByteDance vs Capital One Interview Questions
ByteDance lists 64 LeetCode interview questions while Capital One lists 47. They share 8 problems — 13% of ByteDance's bank and 17% of Capital One's. Focus on the overlap first, then drill into 56 ByteDance-only and 39 Capital One-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 8 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ByteDance and Capital One.
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 Capital One-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Capital One skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
8 Shared Questions
High-priority problems to practice for both ByteDance and Capital One.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Merge Intervals | Medium |
| Add Two Numbers | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Valid Parentheses | Easy |
| Find the Length of the Longest Common Prefix | Medium |
| Text Justification | Hard |
Unique to ByteDance (56)
Problems in ByteDance's list that do not appear at Capital One.
| Problem | Difficulty |
|---|---|
| Remove Duplicate Letters | Medium |
| Smallest Subsequence of Distinct Characters | Medium |
| First Day Where You Have Been in All the Rooms | Medium |
| Course Schedule | Medium |
| Combination Sum | Medium |
| Basic Calculator II | Medium |
| Shortest Bridge | Medium |
| House Robber | Medium |
| Maximal Square | Medium |
| Regular Expression Matching | Hard |
| Top K Frequent Elements | Medium |
| Design Memory Allocator | Medium |
Unique to Capital One (39)
Problems in Capital One's list that do not appear at ByteDance.
| Problem | Difficulty |
|---|---|
| Simple Bank System | Medium |
| Spiral Matrix | Medium |
| Block Placement Queries | Hard |
| Minimum Operations to Write the Letter Y on a Grid | Medium |
| Candy Crush | Medium |
| Count Alternating Subarrays | Medium |
| Rotate Image | Medium |
| Four Divisors | Medium |
| Simplify Path | Medium |
| Count Operations to Obtain Zero | Easy |
| Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit | Medium |
| Split Message Based on Limit | Hard |
Frequently Asked Questions
How many LeetCode questions do ByteDance and Capital One share?
ByteDance and Capital One share 8 LeetCode interview questions. 56 problems appear only in ByteDance's list and 39 appear only in Capital One's list.
What topics overlap most between ByteDance and Capital One?
The most common shared topics between ByteDance and Capital One are Array (5 shared questions), String (3 shared questions), Hash Table (2 shared questions), Linked List (2 shared questions), Design (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: ByteDance or Capital One?
ByteDance has 4 Easy, 51 Medium, and 9 Hard questions. Capital One has 9 Easy, 28 Medium, and 10 Hard questions. Capital One has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both ByteDance and Capital One?
Start with the 8 shared problems since they cover what both companies ask most often. Then add 20 ByteDance-specific and 20 Capital One-specific questions to round out your prep.