Google vs TikTok Interview Questions
Google lists 2,305 LeetCode interview questions while TikTok lists 351. They share 324 problems — 14% of Google's bank and 92% of TikTok's. Focus on the overlap first, then drill into 1,981 Google-only and 27 TikTok-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 324 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Google and TikTok.
Step 2 — Company-specific depth: Add Google-specific problems like Palindrome Number, Merge Sorted Array, Create Hello World Function and TikTok-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Google skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
324 Shared Questions
High-priority problems to practice for both Google and TikTok.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Add Two Numbers | Medium |
| Trapping Rain Water | Hard |
| Median of Two Sorted Arrays | Hard |
| Longest Common Prefix | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock | Easy |
| 3Sum | Medium |
| Longest Palindromic Substring | Medium |
| Longest Consecutive Sequence | Medium |
| Container With Most Water | Medium |
| Valid Parentheses | Easy |
| Roman to Integer | Easy |
| Merge Intervals | Medium |
| Number of Islands | Medium |
| Maximum Subarray | Medium |
| Subarray Sum Equals K | Medium |
| Climbing Stairs | Easy |
| Merge Two Sorted Lists | Easy |
| Next Permutation | Medium |
| Generate Parentheses | Medium |
| Spiral Matrix | Medium |
| Meeting Rooms II | Medium |
| Reverse Linked List | Easy |
| Decode String | Medium |
| Add Two Integers | Easy |
| Koko Eating Bananas | Medium |
| Search in Rotated Sorted Array | Medium |
| Move Zeroes | Easy |
| LRU Cache | Medium |
Showing top 30 of 324 shared problems.
Unique to Google (1,981)
Problems in Google's list that do not appear at TikTok.
Unique to TikTok (27)
Problems in TikTok's list that do not appear at Google.
Frequently Asked Questions
How many LeetCode questions do Google and TikTok share?
Google and TikTok share 324 LeetCode interview questions. 1981 problems appear only in Google's list and 27 appear only in TikTok's list.
What topics overlap most between Google and TikTok?
The most common shared topics between Google and TikTok are Array (18 shared questions), Two Pointers (7 shared questions), String (7 shared questions), Hash Table (6 shared questions), Dynamic Programming (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Google or TikTok?
Google has 601 Easy, 1205 Medium, and 499 Hard questions. TikTok has 34 Easy, 245 Medium, and 72 Hard questions. Google has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Google and TikTok?
Start with the 324 shared problems since they cover what both companies ask most often. Then add 20 Google-specific and 20 TikTok-specific questions to round out your prep.