Grammarly vs Zenefits Interview Questions
Grammarly lists 30 LeetCode interview questions while Zenefits lists 21. They share 3 problems — 10% of Grammarly's bank and 14% of Zenefits's. Focus on the overlap first, then drill into 27 Grammarly-only and 18 Zenefits-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 3 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Grammarly and Zenefits.
Step 2 — Company-specific depth: Add Grammarly-specific problems like Merge Intervals, Remove All Adjacent Duplicates In String, Search in Rotated Sorted Array and Zenefits-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Zenefits skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
3 Shared Questions
High-priority problems to practice for both Grammarly and Zenefits.
| Problem | Difficulty |
|---|---|
| Generate Parentheses | Medium |
| Number of Islands | Medium |
| Trapping Rain Water | Hard |
Unique to Grammarly (27)
Problems in Grammarly's list that do not appear at Zenefits.
| Problem | Difficulty |
|---|---|
| Merge Intervals | Medium |
| 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 |
| Perfect Number | Easy |
| Logger Rate Limiter | Easy |
| Sum of Left Leaves | Easy |
Unique to Zenefits (18)
Problems in Zenefits's list that do not appear at Grammarly.
| Problem | Difficulty |
|---|---|
| Median of Two Sorted Arrays | Hard |
| Graph Valid Tree | Medium |
| Reverse Linked List | Easy |
| Course Schedule | Medium |
| LRU Cache | Medium |
| Course Schedule II | Medium |
| Valid Parentheses | Easy |
| Min Stack | Medium |
| Majority Element II | Medium |
| Excel Sheet Column Title | Easy |
| Majority Element | Easy |
| Convert Sorted List to Binary Search Tree | Medium |
Frequently Asked Questions
How many LeetCode questions do Grammarly and Zenefits share?
Grammarly and Zenefits share 3 LeetCode interview questions. 27 problems appear only in Grammarly's list and 18 appear only in Zenefits's list.
What topics overlap most between Grammarly and Zenefits?
The most common shared topics between Grammarly and Zenefits are Dynamic Programming (2 shared questions), Array (2 shared questions), String (1 shared questions), Backtracking (1 shared questions), Depth-First Search (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Grammarly or Zenefits?
Grammarly has 7 Easy, 19 Medium, and 4 Hard questions. Zenefits has 5 Easy, 11 Medium, and 5 Hard questions. Zenefits has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Grammarly and Zenefits?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 Grammarly-specific and 18 Zenefits-specific questions to round out your prep.