Apple vs Capital One Interview Questions
Apple lists 300 LeetCode interview questions while Capital One lists 47. They share 23 problems — 8% of Apple's bank and 49% of Capital One's. Focus on the overlap first, then drill into 277 Apple-only and 24 Capital One-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 23 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Apple and Capital One.
Step 2 — Company-specific depth: Add Apple-specific problems like Two Sum, Design Hit Counter, Longest Common Prefix 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
23 Shared Questions
High-priority problems to practice for both Apple and Capital One.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Merge Intervals | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Rotate Array | Medium |
| Valid Parentheses | Easy |
| Rotate Image | Medium |
| Spiral Matrix | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| Meeting Rooms II | Medium |
| Merge Two Sorted Lists | Easy |
| Find Servers That Handled Most Number of Requests | Hard |
| Binary Tree Paths | Easy |
| Text Justification | Hard |
| Roman to Integer | Easy |
| Coin Change | Medium |
| Add Two Numbers | Medium |
| Word Search | Medium |
| Simplify Path | Medium |
| Largest Rectangle in Histogram | Hard |
| Reverse Nodes in k-Group | Hard |
| Non-overlapping Intervals | Medium |
| Word Search II | Hard |
Unique to Apple (277)
Problems in Apple's list that do not appear at Capital One.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Design Hit Counter | Medium |
| Longest Common Prefix | Easy |
| Reverse Linked List | Easy |
| Valid Sudoku | Medium |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Course Schedule II | Medium |
| Course Schedule | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Product of Array Except Self | Medium |
| Valid Palindrome | Easy |
Unique to Capital One (24)
Problems in Capital One's list that do not appear at Apple.
Frequently Asked Questions
How many LeetCode questions do Apple and Capital One share?
Apple and Capital One share 23 LeetCode interview questions. 277 problems appear only in Apple's list and 24 appear only in Capital One's list.
What topics overlap most between Apple and Capital One?
The most common shared topics between Apple and Capital One are Array (15 shared questions), String (7 shared questions), Matrix (5 shared questions), Linked List (4 shared questions), Dynamic Programming (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Apple or Capital One?
Apple has 76 Easy, 178 Medium, and 46 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 Apple and Capital One?
Start with the 23 shared problems since they cover what both companies ask most often. Then add 20 Apple-specific and 20 Capital One-specific questions to round out your prep.