Amazon vs Grammarly Interview Questions
Amazon lists 1,968 LeetCode interview questions while Grammarly lists 30. They share 28 problems — 1% of Amazon's bank and 93% of Grammarly's. Focus on the overlap first, then drill into 1,940 Amazon-only and 2 Grammarly-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 28 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Amazon and Grammarly.
Step 2 — Company-specific depth: Add Amazon-specific problems like Two Sum, LRU Cache, Longest Substring Without Repeating Characters and Grammarly-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Amazon skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
28 Shared Questions
High-priority problems to practice for both Amazon and Grammarly.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Number of Islands | Medium |
| Merge Intervals | Medium |
| Search in Rotated Sorted Array | Medium |
| Generate Parentheses | Medium |
| Climbing Stairs | Easy |
| Word Search | Medium |
| Unique Paths | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Word Break | Medium |
| Sqrt(x) | Easy |
| Search Insert Position | Easy |
| Word Break II | Hard |
| Evaluate Reverse Polish Notation | Medium |
| Non-overlapping Intervals | Medium |
| Implement Trie (Prefix Tree) | Medium |
| Remove All Adjacent Duplicates in String II | Medium |
| Remove All Adjacent Duplicates In String | Easy |
| Recover a Tree From Preorder Traversal | Hard |
| Repeated DNA Sequences | Medium |
| Logger Rate Limiter | Easy |
| Decode the Slanted Ciphertext | Medium |
| Two Best Non-Overlapping Events | Medium |
| Perfect Number | Easy |
| Sum of Left Leaves | Easy |
| Vowel Spellchecker | Medium |
| Special Binary String | Hard |
| Check If a String Contains All Binary Codes of Size K | Medium |
Unique to Amazon (1,940)
Problems in Amazon's list that do not appear at Grammarly.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| Add Two Numbers | Medium |
| Reorganize String | Medium |
| 3Sum | Medium |
| Longest Palindromic Substring | Medium |
| Container With Most Water | Medium |
| Median of Two Sorted Arrays | Hard |
| Koko Eating Bananas | Medium |
Unique to Grammarly (2)
Problems in Grammarly's list that do not appear at Amazon.
| Problem | Difficulty |
|---|---|
| Minimum Substring Partition of Equal Character Frequency | Medium |
| Maximum Palindromes After Operations | Medium |
Frequently Asked Questions
How many LeetCode questions do Amazon and Grammarly share?
Amazon and Grammarly share 28 LeetCode interview questions. 1940 problems appear only in Amazon's list and 2 appear only in Grammarly's list.
What topics overlap most between Amazon and Grammarly?
The most common shared topics between Amazon and Grammarly are Array (13 shared questions), String (13 shared questions), Dynamic Programming (8 shared questions), Hash Table (8 shared questions), Math (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Amazon or Grammarly?
Amazon has 527 Easy, 1074 Medium, and 367 Hard questions. Grammarly has 7 Easy, 19 Medium, and 4 Hard questions. Amazon has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Amazon and Grammarly?
Start with the 28 shared problems since they cover what both companies ask most often. Then add 20 Amazon-specific and 2 Grammarly-specific questions to round out your prep.