TikTok vs Zenefits Interview Questions
TikTok lists 351 LeetCode interview questions while Zenefits lists 21. They share 14 problems — 4% of TikTok's bank and 67% of Zenefits's. Focus on the overlap first, then drill into 337 TikTok-only and 7 Zenefits-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 14 overlapping problems first. These are the highest-yield questions for candidates interviewing at both TikTok and Zenefits.
Step 2 — Company-specific depth: Add TikTok-specific problems like Longest Increasing Subsequence, Longest Substring Without Repeating Characters, Number of Distinct Islands 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
14 Shared Questions
High-priority problems to practice for both TikTok and Zenefits.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Course Schedule II | Medium |
| Course Schedule | Medium |
| Trapping Rain Water | Hard |
| Valid Parentheses | Easy |
| Generate Parentheses | Medium |
| Reverse Linked List | Easy |
| Sliding Window Maximum | Hard |
| Valid Palindrome | Easy |
| Shortest Distance from All Buildings | Hard |
| Median of Two Sorted Arrays | Hard |
| Graph Valid Tree | Medium |
| Verify Preorder Sequence in Binary Search Tree | Medium |
Unique to TikTok (337)
Problems in TikTok's list that do not appear at Zenefits.
| Problem | Difficulty |
|---|---|
| Longest Increasing Subsequence | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Number of Distinct Islands | Medium |
| Meeting Rooms II | Medium |
| Merge Intervals | Medium |
| Subarray With Elements Greater Than Varying Threshold | Hard |
| Text Justification | Hard |
| Decode String | Medium |
| Word Search | Medium |
| Longest Palindromic Substring | Medium |
| N-Queens | Hard |
| Minimum Window Substring | Hard |
Unique to Zenefits (7)
Problems in Zenefits's list that do not appear at TikTok.
| Problem | Difficulty |
|---|---|
| Min Stack | Medium |
| Majority Element II | Medium |
| Excel Sheet Column Title | Easy |
| Majority Element | Easy |
| Convert Sorted List to Binary Search Tree | Medium |
| N-Queens II | Hard |
| Flatten 2D Vector | Medium |
Frequently Asked Questions
How many LeetCode questions do TikTok and Zenefits share?
TikTok and Zenefits share 14 LeetCode interview questions. 337 problems appear only in TikTok's list and 7 appear only in Zenefits's list.
What topics overlap most between TikTok and Zenefits?
The most common shared topics between TikTok and Zenefits are Array (6 shared questions), Breadth-First Search (5 shared questions), Depth-First Search (4 shared questions), Graph Theory (3 shared questions), Stack (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: TikTok or Zenefits?
TikTok has 34 Easy, 245 Medium, and 72 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 TikTok and Zenefits?
Start with the 14 shared problems since they cover what both companies ask most often. Then add 20 TikTok-specific and 7 Zenefits-specific questions to round out your prep.