TikTok vs Visa Interview Questions
TikTok lists 351 LeetCode interview questions while Visa lists 146. They share 78 problems — 22% of TikTok's bank and 53% of Visa's. Focus on the overlap first, then drill into 273 TikTok-only and 68 Visa-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 78 overlapping problems first. These are the highest-yield questions for candidates interviewing at both TikTok and Visa.
Step 2 — Company-specific depth: Add TikTok-specific problems like Number of Distinct Islands, Course Schedule II, Subarray With Elements Greater Than Varying Threshold and Visa-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
78 Shared Questions
High-priority problems to practice for both TikTok and Visa.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Longest Increasing Subsequence | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Meeting Rooms II | Medium |
| Merge Intervals | Medium |
| Course Schedule | Medium |
| Trapping Rain Water | Hard |
| Text Justification | Hard |
| Word Search | Medium |
| Longest Palindromic Substring | Medium |
| Search in Rotated Sorted Array | Medium |
| Subarray Sum Equals K | Medium |
| Top K Frequent Elements | Medium |
| 3Sum | Medium |
| Spiral Matrix | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Longest Consecutive Sequence | Medium |
| Kth Largest Element in an Array | Medium |
| Valid Parentheses | Easy |
| Two Sum | Easy |
| Word Ladder | Hard |
| Sort Colors | Medium |
| Daily Temperatures | Medium |
| Word Search II | Hard |
| Add Strings | Easy |
| Edit Distance | Medium |
| Word Break II | Hard |
| Simplify Path | Medium |
| Binary Tree Right Side View | Medium |
Showing top 30 of 78 shared problems.
Unique to TikTok (273)
Problems in TikTok's list that do not appear at Visa.
| Problem | Difficulty |
|---|---|
| Number of Distinct Islands | Medium |
| Course Schedule II | Medium |
| Subarray With Elements Greater Than Varying Threshold | Hard |
| Decode String | Medium |
| N-Queens | Hard |
| Minimum Window Substring | Hard |
| Minimum Swaps to Group All 1's Together | Medium |
| Sqrt(x) | Easy |
| Coin Change | Medium |
| Making A Large Island | Hard |
| Maximum Value at a Given Index in a Bounded Array | Medium |
| Merge k Sorted Lists | Hard |
Unique to Visa (68)
Problems in Visa's list that do not appear at TikTok.
Frequently Asked Questions
How many LeetCode questions do TikTok and Visa share?
TikTok and Visa share 78 LeetCode interview questions. 273 problems appear only in TikTok's list and 68 appear only in Visa's list.
What topics overlap most between TikTok and Visa?
The most common shared topics between TikTok and Visa are Array (20 shared questions), String (11 shared questions), Hash Table (8 shared questions), Dynamic Programming (6 shared questions), Sorting (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: TikTok or Visa?
TikTok has 34 Easy, 245 Medium, and 72 Hard questions. Visa has 32 Easy, 92 Medium, and 22 Hard questions. TikTok has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both TikTok and Visa?
Start with the 78 shared problems since they cover what both companies ask most often. Then add 20 TikTok-specific and 20 Visa-specific questions to round out your prep.