LinkedIn vs TikTok Interview Questions
LinkedIn lists 141 LeetCode interview questions while TikTok lists 351. They share 67 problems — 48% of LinkedIn's bank and 19% of TikTok's. Focus on the overlap first, then drill into 74 LinkedIn-only and 284 TikTok-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 67 overlapping problems first. These are the highest-yield questions for candidates interviewing at both LinkedIn and TikTok.
Step 2 — Company-specific depth: Add LinkedIn-specific problems like Nested List Weight Sum II, Nested List Weight Sum, Design Authentication Manager and TikTok-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: TikTok skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
67 Shared Questions
High-priority problems to practice for both LinkedIn and TikTok.
| Problem | Difficulty |
|---|---|
| Max Stack | Hard |
| All O`one Data Structure | Hard |
| Word Ladder | Hard |
| Find the Celebrity | Medium |
| Maximum Subarray | Medium |
| Max Consecutive Ones III | Medium |
| Valid Parentheses | Easy |
| Number of Islands | Medium |
| Maximum Product Subarray | Medium |
| Search in Rotated Sorted Array | Medium |
| Pow(x, n) | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Partition to K Equal Sum Subsets | Medium |
| Find First and Last Position of Element in Sorted Array | Medium |
| Serialize and Deserialize Binary Tree | Hard |
| Minimum Window Substring | Hard |
| Kth Largest Element in an Array | Medium |
| Lowest Common Ancestor of a Binary Tree | Medium |
| Process Tasks Using Servers | Medium |
| Symmetric Tree | Easy |
| Merge Intervals | Medium |
| Longest Valid Parentheses | Hard |
| House Robber | Medium |
| LRU Cache | Medium |
| Merge Two Sorted Lists | Easy |
| Permutations II | Medium |
| Permutations | Medium |
| Two Sum | Easy |
| Binary Tree Zigzag Level Order Traversal | Medium |
| Merge k Sorted Lists | Hard |
Showing top 30 of 67 shared problems.
Unique to LinkedIn (74)
Problems in LinkedIn's list that do not appear at TikTok.
| Problem | Difficulty |
|---|---|
| Nested List Weight Sum II | Medium |
| Nested List Weight Sum | Medium |
| Design Authentication Manager | Medium |
| Find Leaves of Binary Tree | Medium |
| Shortest Word Distance II | Medium |
| Can Place Flowers | Easy |
| Binary Tree Upside Down | Medium |
| Paint House | Medium |
| Maximize Subarrays After Removing One Conflicting Pair | Hard |
| Building H2O | Medium |
| Exclusive Time of Functions | Medium |
| Factor Combinations | Medium |
Unique to TikTok (284)
Problems in TikTok's list that do not appear at LinkedIn.
| Problem | Difficulty |
|---|---|
| Longest Increasing Subsequence | Medium |
| Number of Distinct Islands | Medium |
| Meeting Rooms II | Medium |
| Course Schedule | Medium |
| Trapping Rain Water | Hard |
| Subarray With Elements Greater Than Varying Threshold | Hard |
| Decode String | Medium |
| Word Search | Medium |
| N-Queens | Hard |
| Subarray Sum Equals K | Medium |
| Top K Frequent Elements | Medium |
| 3Sum | Medium |
Frequently Asked Questions
How many LeetCode questions do LinkedIn and TikTok share?
LinkedIn and TikTok share 67 LeetCode interview questions. 74 problems appear only in LinkedIn's list and 284 appear only in TikTok's list.
What topics overlap most between LinkedIn and TikTok?
The most common shared topics between LinkedIn and TikTok are Array (15 shared questions), Hash Table (6 shared questions), Linked List (5 shared questions), Design (5 shared questions), String (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: LinkedIn or TikTok?
LinkedIn has 25 Easy, 90 Medium, and 26 Hard questions. TikTok has 34 Easy, 245 Medium, and 72 Hard questions. TikTok has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both LinkedIn and TikTok?
Start with the 67 shared problems since they cover what both companies ask most often. Then add 20 LinkedIn-specific and 20 TikTok-specific questions to round out your prep.