Capital One vs Grammarly Interview Questions
Capital One lists 47 LeetCode interview questions while Grammarly lists 30. They share 4 problems — 9% of Capital One's bank and 13% of Grammarly's. Focus on the overlap first, then drill into 43 Capital One-only and 26 Grammarly-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 Grammarly.
Step 2 — Company-specific depth: Add Capital One-specific problems like Simple Bank System, Spiral Matrix, Block Placement Queries and Grammarly-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
4 Shared Questions
High-priority problems to practice for both Capital One and Grammarly.
| Problem | Difficulty |
|---|---|
| Word Search | Medium |
| Merge Intervals | Medium |
| Non-overlapping Intervals | Medium |
| Number of Islands | Medium |
Unique to Capital One (43)
Problems in Capital One's list that do not appear at Grammarly.
| 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 Grammarly (26)
Problems in Grammarly's list that do not appear at Capital One.
| Problem | Difficulty |
|---|---|
| Remove All Adjacent Duplicates In String | Easy |
| Search in Rotated Sorted Array | Medium |
| Vowel Spellchecker | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Remove All Adjacent Duplicates in String II | Medium |
| Climbing Stairs | Easy |
| Repeated DNA Sequences | Medium |
| Sqrt(x) | Easy |
| Generate Parentheses | Medium |
| Perfect Number | Easy |
| Logger Rate Limiter | Easy |
| Sum of Left Leaves | Easy |
Frequently Asked Questions
How many LeetCode questions do Capital One and Grammarly share?
Capital One and Grammarly share 4 LeetCode interview questions. 43 problems appear only in Capital One's list and 26 appear only in Grammarly's list.
What topics overlap most between Capital One and Grammarly?
The most common shared topics between Capital One and Grammarly are Array (4 shared questions), Depth-First Search (2 shared questions), Matrix (2 shared questions), Sorting (2 shared questions), String (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Capital One or Grammarly?
Capital One has 9 Easy, 28 Medium, and 10 Hard questions. Grammarly has 7 Easy, 19 Medium, and 4 Hard questions. Capital One has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Capital One and Grammarly?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 20 Capital One-specific and 20 Grammarly-specific questions to round out your prep.