Capital One vs TikTok Interview Questions
Capital One lists 47 LeetCode interview questions while TikTok lists 351. They share 28 problems — 60% of Capital One's bank and 8% of TikTok's. Focus on the overlap first, then drill into 19 Capital One-only and 323 TikTok-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 28 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Capital One and TikTok.
Step 2 — Company-specific depth: Add Capital One-specific problems like Simple Bank System, Block Placement Queries, Count Alternating Subarrays and TikTok-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Capital One skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
28 Shared Questions
High-priority problems to practice for both Capital One and TikTok.
| Problem | Difficulty |
|---|---|
| Spiral Matrix | Medium |
| Text Justification | Hard |
| Minimum Operations to Write the Letter Y on a Grid | Medium |
| Candy Crush | Medium |
| Rotate Image | Medium |
| Simplify Path | Medium |
| Split Message Based on Limit | Hard |
| Largest Rectangle in Histogram | Hard |
| Best Time to Buy and Sell Stock | Easy |
| Find the Length of the Longest Common Prefix | Medium |
| Word Search | Medium |
| Coin Change | Medium |
| Merge Intervals | Medium |
| Add Strings | Easy |
| Non-overlapping Intervals | Medium |
| Number of Islands | Medium |
| Word Search II | Hard |
| Add Two Numbers | Medium |
| Number of Adjacent Elements With the Same Color | Medium |
| LRU Cache | Medium |
| Merge Two Sorted Lists | Easy |
| Meeting Rooms II | Medium |
| Rotate Array | Medium |
| Roman to Integer | Easy |
| Valid Parentheses | Easy |
| Reverse Nodes in k-Group | Hard |
| Best Time to Buy and Sell Stock II | Medium |
| Minimum Absolute Difference Between Elements With Constraint | Medium |
Unique to Capital One (19)
Problems in Capital One's list that do not appear at TikTok.
Unique to TikTok (323)
Problems in TikTok's list that do not appear at Capital One.
| Problem | Difficulty |
|---|---|
| Longest Increasing Subsequence | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Number of Distinct Islands | Medium |
| Course Schedule II | Medium |
| Course Schedule | Medium |
| Trapping Rain Water | Hard |
| Subarray With Elements Greater Than Varying Threshold | Hard |
| Decode String | Medium |
| Longest Palindromic Substring | Medium |
| N-Queens | Hard |
| Minimum Window Substring | Hard |
| Search in Rotated Sorted Array | Medium |
Frequently Asked Questions
How many LeetCode questions do Capital One and TikTok share?
Capital One and TikTok share 28 LeetCode interview questions. 19 problems appear only in Capital One's list and 323 appear only in TikTok's list.
What topics overlap most between Capital One and TikTok?
The most common shared topics between Capital One and TikTok are Array (19 shared questions), String (9 shared questions), Matrix (7 shared questions), Math (5 shared questions), Simulation (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Capital One or TikTok?
Capital One has 9 Easy, 28 Medium, and 10 Hard questions. TikTok has 34 Easy, 245 Medium, and 72 Hard questions. Capital One has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Capital One and TikTok?
Start with the 28 shared problems since they cover what both companies ask most often. Then add 19 Capital One-specific and 20 TikTok-specific questions to round out your prep.