Capital One vs Google Interview Questions
Capital One lists 47 LeetCode interview questions while Google lists 2,305. They share 41 problems — 87% of Capital One's bank and 2% of Google's. Focus on the overlap first, then drill into 6 Capital One-only and 2,264 Google-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 41 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Capital One and Google.
Step 2 — Company-specific depth: Add Capital One-specific problems like Minimum Operations to Write the Letter Y on a Grid, Count Alternating Subarrays, Split Message Based on Limit and Google-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Google skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
41 Shared Questions
High-priority problems to practice for both Capital One and Google.
| Problem | Difficulty |
|---|---|
| Simple Bank System | Medium |
| Spiral Matrix | Medium |
| Block Placement Queries | Hard |
| Text Justification | Hard |
| Candy Crush | 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 |
| Rotating the Box | Medium |
| Number of Black Blocks | Medium |
| Largest Rectangle in Histogram | Hard |
| Best Time to Buy and Sell Stock | Easy |
| Remove Boxes | Hard |
| Find the Length of the Longest Common Prefix | Medium |
| Number of Flowers in Full Bloom | Hard |
| Palindrome Number | Easy |
| Word Search | Medium |
| Coin Change | Medium |
| Design File System | Medium |
| Merge Intervals | Medium |
| Add Strings | Easy |
| Non-overlapping Intervals | Medium |
| Number of Islands | Medium |
| Word Search II | Hard |
| Add Two Numbers | Medium |
| Binary Tree Paths | Easy |
| LRU Cache | Medium |
| Merge Two Sorted Lists | Easy |
Showing top 30 of 41 shared problems.
Unique to Capital One (6)
Problems in Capital One's list that do not appear at Google.
Unique to Google (2,264)
Problems in Google's list that do not appear at Capital One.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Trapping Rain Water | Hard |
| Median of Two Sorted Arrays | Hard |
| Longest Common Prefix | Easy |
| Merge Sorted Array | Easy |
| Longest Substring Without Repeating Characters | Medium |
| 3Sum | Medium |
| Create Hello World Function | Easy |
| Merge Strings Alternately | Easy |
| Longest Palindromic Substring | Medium |
| Longest Consecutive Sequence | Medium |
| Container With Most Water | Medium |
Frequently Asked Questions
How many LeetCode questions do Capital One and Google share?
Capital One and Google share 41 LeetCode interview questions. 6 problems appear only in Capital One's list and 2264 appear only in Google's list.
What topics overlap most between Capital One and Google?
The most common shared topics between Capital One and Google are Array (21 shared questions), String (8 shared questions), Matrix (7 shared questions), Hash Table (6 shared questions), Simulation (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Capital One or Google?
Capital One has 9 Easy, 28 Medium, and 10 Hard questions. Google has 601 Easy, 1205 Medium, and 499 Hard questions. Google has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Capital One and Google?
Start with the 41 shared problems since they cover what both companies ask most often. Then add 6 Capital One-specific and 20 Google-specific questions to round out your prep.