Intel vs Zenefits Interview Questions
Intel lists 25 LeetCode interview questions while Zenefits lists 21. They share 5 problems — 20% of Intel's bank and 24% of Zenefits's. Focus on the overlap first, then drill into 20 Intel-only and 16 Zenefits-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 5 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Intel and Zenefits.
Step 2 — Company-specific depth: Add Intel-specific problems like Find Consecutive Integers from a Data Stream, Maximum Nesting Depth of the Parentheses, Copy List with Random Pointer 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
5 Shared Questions
High-priority problems to practice for both Intel and Zenefits.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Valid Parentheses | Easy |
| Number of Islands | Medium |
| LRU Cache | Medium |
| Valid Palindrome | Easy |
Unique to Intel (20)
Problems in Intel's list that do not appear at Zenefits.
| Problem | Difficulty |
|---|---|
| Find Consecutive Integers from a Data Stream | Medium |
| Maximum Nesting Depth of the Parentheses | Easy |
| Copy List with Random Pointer | Medium |
| Two Sum | Easy |
| Count Primes | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| Reverse Integer | Medium |
| Maximum Subarray | Medium |
| Climbing Stairs | Easy |
| Merge Two Sorted Lists | Easy |
| Reverse Words in a String | Medium |
Unique to Zenefits (16)
Problems in Zenefits's list that do not appear at Intel.
| Problem | Difficulty |
|---|---|
| Median of Two Sorted Arrays | Hard |
| Graph Valid Tree | Medium |
| Reverse Linked List | Easy |
| Course Schedule | Medium |
| Course Schedule II | Medium |
| Generate Parentheses | Medium |
| Min Stack | Medium |
| Majority Element II | Medium |
| Excel Sheet Column Title | Easy |
| Majority Element | Easy |
| Convert Sorted List to Binary Search Tree | Medium |
| Sliding Window Maximum | Hard |
Frequently Asked Questions
How many LeetCode questions do Intel and Zenefits share?
Intel and Zenefits share 5 LeetCode interview questions. 20 problems appear only in Intel's list and 16 appear only in Zenefits's list.
What topics overlap most between Intel and Zenefits?
The most common shared topics between Intel and Zenefits are Array (2 shared questions), Two Pointers (2 shared questions), Stack (2 shared questions), String (2 shared questions), Dynamic Programming (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Intel or Zenefits?
Intel has 10 Easy, 14 Medium, and 1 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 Intel and Zenefits?
Start with the 5 shared problems since they cover what both companies ask most often. Then add 20 Intel-specific and 16 Zenefits-specific questions to round out your prep.