Google vs Zenefits Interview Questions
Google lists 2,305 LeetCode interview questions while Zenefits lists 21. They share 20 problems — 1% of Google's bank and 95% of Zenefits's. Focus on the overlap first, then drill into 2,285 Google-only and 1 Zenefits-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 20 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Google and Zenefits.
Step 2 — Company-specific depth: Add Google-specific problems like Two Sum, Add Two Numbers, Longest Common Prefix 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
20 Shared Questions
High-priority problems to practice for both Google and Zenefits.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Median of Two Sorted Arrays | Hard |
| Valid Parentheses | Easy |
| Majority Element | Easy |
| Number of Islands | Medium |
| Generate Parentheses | Medium |
| Reverse Linked List | Easy |
| LRU Cache | Medium |
| Sliding Window Maximum | Hard |
| Course Schedule | Medium |
| Valid Palindrome | Easy |
| Min Stack | Medium |
| Majority Element II | Medium |
| Course Schedule II | Medium |
| Excel Sheet Column Title | Easy |
| Graph Valid Tree | Medium |
| Shortest Distance from All Buildings | Hard |
| Convert Sorted List to Binary Search Tree | Medium |
| Flatten 2D Vector | Medium |
| N-Queens II | Hard |
Unique to Google (2,285)
Problems in Google's list that do not appear at Zenefits.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Add Two Numbers | Medium |
| Longest Common Prefix | Easy |
| Palindrome Number | Easy |
| Merge Sorted Array | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock | Easy |
| 3Sum | Medium |
| Create Hello World Function | Easy |
| Merge Strings Alternately | Easy |
| Longest Palindromic Substring | Medium |
| Longest Consecutive Sequence | Medium |
Unique to Zenefits (1)
Problems in Zenefits's list that do not appear at Google.
| Problem | Difficulty |
|---|---|
| Verify Preorder Sequence in Binary Search Tree | Medium |
Frequently Asked Questions
How many LeetCode questions do Google and Zenefits share?
Google and Zenefits share 20 LeetCode interview questions. 2285 problems appear only in Google's list and 1 appear only in Zenefits's list.
What topics overlap most between Google and Zenefits?
The most common shared topics between Google and Zenefits are Array (8 shared questions), Breadth-First Search (5 shared questions), String (4 shared questions), Depth-First Search (4 shared questions), Two Pointers (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Google or Zenefits?
Google has 601 Easy, 1205 Medium, and 499 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 Google and Zenefits?
Start with the 20 shared problems since they cover what both companies ask most often. Then add 20 Google-specific and 1 Zenefits-specific questions to round out your prep.