TikTok vs Zeta Interview Questions
TikTok lists 351 LeetCode interview questions while Zeta lists 30. They share 18 problems — 5% of TikTok's bank and 60% of Zeta's. Focus on the overlap first, then drill into 333 TikTok-only and 12 Zeta-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 18 overlapping problems first. These are the highest-yield questions for candidates interviewing at both TikTok and Zeta.
Step 2 — Company-specific depth: Add TikTok-specific problems like LRU Cache, Number of Islands, Longest Increasing Subsequence and Zeta-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Zeta skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
18 Shared Questions
High-priority problems to practice for both TikTok and Zeta.
| Problem | Difficulty |
|---|---|
| Longest Substring Without Repeating Characters | Medium |
| Merge Intervals | Medium |
| Trapping Rain Water | Hard |
| Minimum Window Substring | Hard |
| House Robber | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Sliding Window Maximum | Hard |
| Word Break | Medium |
| Reverse Nodes in k-Group | Hard |
| Maximum Subarray | Medium |
| Capacity To Ship Packages Within D Days | Medium |
| Find All Possible Recipes from Given Supplies | Medium |
| Heaters | Medium |
| Remove K Digits | Medium |
| Task Scheduler | Medium |
| Median of Two Sorted Arrays | Hard |
| Partition to K Equal Sum Subsets | Medium |
| Next Greater Element II | Medium |
Unique to TikTok (333)
Problems in TikTok's list that do not appear at Zeta.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Longest Increasing Subsequence | Medium |
| Number of Distinct Islands | Medium |
| Meeting Rooms II | Medium |
| Course Schedule II | Medium |
| Course Schedule | Medium |
| Subarray With Elements Greater Than Varying Threshold | Hard |
| Text Justification | Hard |
| Decode String | Medium |
| Word Search | Medium |
| Longest Palindromic Substring | Medium |
Unique to Zeta (12)
Problems in Zeta's list that do not appear at TikTok.
| Problem | Difficulty |
|---|---|
| Apply Operations to Make Two Strings Equal | Medium |
| Split Array Largest Sum | Hard |
| Palindrome Partitioning II | Hard |
| Remove Boxes | Hard |
| Maximal Rectangle | Hard |
| Count Univalue Subtrees | Medium |
| Minimize the Maximum Difference of Pairs | Medium |
| Binary Tree Cameras | Hard |
| Shifting Letters II | Medium |
| Guess Number Higher or Lower II | Medium |
| Distribute Coins in Binary Tree | Medium |
| Power Grid Maintenance | Medium |
Frequently Asked Questions
How many LeetCode questions do TikTok and Zeta share?
TikTok and Zeta share 18 LeetCode interview questions. 333 problems appear only in TikTok's list and 12 appear only in Zeta's list.
What topics overlap most between TikTok and Zeta?
The most common shared topics between TikTok and Zeta are Array (14 shared questions), Hash Table (6 shared questions), String (5 shared questions), Dynamic Programming (5 shared questions), Sliding Window (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: TikTok or Zeta?
TikTok has 34 Easy, 245 Medium, and 72 Hard questions. Zeta has 0 Easy, 20 Medium, and 10 Hard questions. Zeta has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both TikTok and Zeta?
Start with the 18 shared problems since they cover what both companies ask most often. Then add 20 TikTok-specific and 12 Zeta-specific questions to round out your prep.