LinkedIn vs Zenefits Interview Questions
LinkedIn lists 141 LeetCode interview questions while Zenefits lists 21. They share 7 problems — 5% of LinkedIn's bank and 33% of Zenefits's. Focus on the overlap first, then drill into 134 LinkedIn-only and 14 Zenefits-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 7 overlapping problems first. These are the highest-yield questions for candidates interviewing at both LinkedIn and Zenefits.
Step 2 — Company-specific depth: Add LinkedIn-specific problems like Max Stack, Nested List Weight Sum II, All O`one Data Structure 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
7 Shared Questions
High-priority problems to practice for both LinkedIn and Zenefits.
| Problem | Difficulty |
|---|---|
| Valid Parentheses | Easy |
| Number of Islands | Medium |
| LRU Cache | Medium |
| Graph Valid Tree | Medium |
| Min Stack | Medium |
| Course Schedule II | Medium |
| Median of Two Sorted Arrays | Hard |
Unique to LinkedIn (134)
Problems in LinkedIn's list that do not appear at Zenefits.
| Problem | Difficulty |
|---|---|
| Max Stack | Hard |
| Nested List Weight Sum II | Medium |
| All O`one Data Structure | Hard |
| Word Ladder | Hard |
| Find the Celebrity | Medium |
| Nested List Weight Sum | Medium |
| Design Authentication Manager | Medium |
| Find Leaves of Binary Tree | Medium |
| Shortest Word Distance II | Medium |
| Maximum Subarray | Medium |
| Max Consecutive Ones III | Medium |
| Maximum Product Subarray | Medium |
Unique to Zenefits (14)
Problems in Zenefits's list that do not appear at LinkedIn.
| Problem | Difficulty |
|---|---|
| Reverse Linked List | Easy |
| Course Schedule | Medium |
| Generate Parentheses | Medium |
| Majority Element II | Medium |
| Excel Sheet Column Title | Easy |
| Majority Element | Easy |
| Trapping Rain Water | Hard |
| Convert Sorted List to Binary Search Tree | Medium |
| Sliding Window Maximum | Hard |
| N-Queens II | Hard |
| Valid Palindrome | Easy |
| Flatten 2D Vector | Medium |
Frequently Asked Questions
How many LeetCode questions do LinkedIn and Zenefits share?
LinkedIn and Zenefits share 7 LeetCode interview questions. 134 problems appear only in LinkedIn's list and 14 appear only in Zenefits's list.
What topics overlap most between LinkedIn and Zenefits?
The most common shared topics between LinkedIn and Zenefits are Depth-First Search (3 shared questions), Breadth-First Search (3 shared questions), Stack (2 shared questions), Array (2 shared questions), Union Find (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: LinkedIn or Zenefits?
LinkedIn has 25 Easy, 90 Medium, and 26 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 LinkedIn and Zenefits?
Start with the 7 shared problems since they cover what both companies ask most often. Then add 20 LinkedIn-specific and 14 Zenefits-specific questions to round out your prep.