Intel vs TikTok Interview Questions
Intel lists 25 LeetCode interview questions while TikTok lists 351. They share 18 problems — 72% of Intel's bank and 5% of TikTok's. Focus on the overlap first, then drill into 7 Intel-only and 333 TikTok-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 Intel and TikTok.
Step 2 — Company-specific depth: Add Intel-specific problems like Find Consecutive Integers from a Data Stream, Maximum Nesting Depth of the Parentheses, Count Primes 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
18 Shared Questions
High-priority problems to practice for both Intel and TikTok.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Valid Parentheses | Easy |
| Number of Islands | Medium |
| Copy List with Random Pointer | Medium |
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| LRU Cache | Medium |
| Maximum Subarray | Medium |
| Climbing Stairs | Easy |
| Merge Two Sorted Lists | Easy |
| Reverse Words in a String | Medium |
| Add Two Numbers | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Container With Most Water | Medium |
| Rotate Image | Medium |
| Valid Palindrome | Easy |
| Top K Frequent Words | Medium |
Unique to Intel (7)
Problems in Intel's list that do not appear at TikTok.
| Problem | Difficulty |
|---|---|
| Find Consecutive Integers from a Data Stream | Medium |
| Maximum Nesting Depth of the Parentheses | Easy |
| Count Primes | Medium |
| Reverse Integer | Medium |
| Palindrome Number | Easy |
| Merge Sorted Array | Easy |
| Linked List Cycle | Easy |
Unique to TikTok (333)
Problems in TikTok's list that do not appear at Intel.
| Problem | Difficulty |
|---|---|
| Longest Increasing Subsequence | Medium |
| Number of Distinct Islands | Medium |
| Meeting Rooms II | Medium |
| Course Schedule II | Medium |
| Merge Intervals | 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 |
| N-Queens | Hard |
Frequently Asked Questions
How many LeetCode questions do Intel and TikTok share?
Intel and TikTok share 18 LeetCode interview questions. 7 problems appear only in Intel's list and 333 appear only in TikTok's list.
What topics overlap most between Intel and TikTok?
The most common shared topics between Intel and TikTok are Array (9 shared questions), Dynamic Programming (5 shared questions), String (5 shared questions), Hash Table (5 shared questions), Two Pointers (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Intel or TikTok?
Intel has 10 Easy, 14 Medium, and 1 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 Intel and TikTok?
Start with the 18 shared problems since they cover what both companies ask most often. Then add 7 Intel-specific and 20 TikTok-specific questions to round out your prep.