Capital One vs Twitter Interview Questions
Capital One lists 47 LeetCode interview questions while Twitter lists 53. They share 4 problems — 9% of Capital One's bank and 8% of Twitter's. Focus on the overlap first, then drill into 43 Capital One-only and 49 Twitter-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 4 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Capital One and Twitter.
Step 2 — Company-specific depth: Add Capital One-specific problems like Simple Bank System, Spiral Matrix, Block Placement Queries 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
4 Shared Questions
High-priority problems to practice for both Capital One and Twitter.
| Problem | Difficulty |
|---|---|
| Number of Black Blocks | Medium |
| Merge Intervals | Medium |
| LRU Cache | Medium |
| Valid Parentheses | Easy |
Unique to Capital One (43)
Problems in Capital One's list that do not appear at Twitter.
| Problem | Difficulty |
|---|---|
| Simple Bank System | Medium |
| Spiral Matrix | Medium |
| Block Placement Queries | Hard |
| Text Justification | 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 |
Unique to Twitter (49)
Problems in Twitter's list that do not appear at Capital One.
| Problem | Difficulty |
|---|---|
| Regular Expression Matching | Hard |
| Integer to Roman | Medium |
| Merge k Sorted Lists | Hard |
| Trapping Rain Water | Hard |
| Multiply Strings | 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 |
Frequently Asked Questions
How many LeetCode questions do Capital One and Twitter share?
Capital One and Twitter share 4 LeetCode interview questions. 43 problems appear only in Capital One's list and 49 appear only in Twitter's list.
What topics overlap most between Capital One and Twitter?
The most common shared topics between Capital One and Twitter are Array (2 shared questions), Hash Table (2 shared questions), Enumeration (1 shared questions), Sorting (1 shared questions), Linked List (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Capital One or Twitter?
Capital One has 9 Easy, 28 Medium, and 10 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 Capital One and Twitter?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 20 Capital One-specific and 20 Twitter-specific questions to round out your prep.