TCS vs TikTok Interview Questions
TCS lists 228 LeetCode interview questions while TikTok lists 351. They share 87 problems — 38% of TCS's bank and 25% of TikTok's. Focus on the overlap first, then drill into 141 TCS-only and 264 TikTok-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 87 overlapping problems first. These are the highest-yield questions for candidates interviewing at both TCS and TikTok.
Step 2 — Company-specific depth: Add TCS-specific problems like Friday Purchases I, Palindrome Number, Majority Element 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
87 Shared Questions
High-priority problems to practice for both TCS and TikTok.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Palindromic Substring | Medium |
| Maximum Subarray | Medium |
| Move Zeroes | Easy |
| Longest Common Prefix | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Sort Colors | Medium |
| Valid Parentheses | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Subarray Sum Equals K | Medium |
| Rotate Array | Medium |
| Median of Two Sorted Arrays | Hard |
| Container With Most Water | Medium |
| 3Sum | Medium |
| Jump Game | Medium |
| Maximum Product Subarray | Medium |
| Task Scheduler | Medium |
| Valid Palindrome | Easy |
| Spiral Matrix | Medium |
| Find First and Last Position of Element in Sorted Array | Medium |
| Trapping Rain Water | Hard |
| Pow(x, n) | Medium |
| Search in Rotated Sorted Array | Medium |
| Climbing Stairs | Easy |
| Merge Intervals | Medium |
| Roman to Integer | Easy |
| Unique Paths | Medium |
| N-Queens | Hard |
| Plus One | Easy |
| House Robber | Medium |
Showing top 30 of 87 shared problems.
Unique to TCS (141)
Problems in TCS's list that do not appear at TikTok.
| Problem | Difficulty |
|---|---|
| Friday Purchases I | Medium |
| Palindrome Number | Easy |
| Majority Element | Easy |
| Valid Anagram | Easy |
| Find the Index of the First Occurrence in a String | Easy |
| Single Number | Easy |
| Second Highest Salary | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Reverse Integer | Medium |
| Contains Duplicate | Easy |
| Remove Letter To Equalize Frequency | Easy |
| Maximum Ascending Subarray Sum | Easy |
Unique to TikTok (264)
Problems in TikTok's list that do not appear at TCS.
| Problem | Difficulty |
|---|---|
| Number of Distinct Islands | Medium |
| Meeting Rooms II | Medium |
| Course Schedule II | Medium |
| Course Schedule | Medium |
| Subarray With Elements Greater Than Varying Threshold | Hard |
| Text Justification | Hard |
| Decode String | Medium |
| Word Search | Medium |
| Minimum Window Substring | Hard |
| Minimum Swaps to Group All 1's Together | Medium |
| Coin Change | Medium |
| Making A Large Island | Hard |
Frequently Asked Questions
How many LeetCode questions do TCS and TikTok share?
TCS and TikTok share 87 LeetCode interview questions. 141 problems appear only in TCS's list and 264 appear only in TikTok's list.
What topics overlap most between TCS and TikTok?
The most common shared topics between TCS and TikTok are Array (22 shared questions), Dynamic Programming (9 shared questions), Two Pointers (8 shared questions), String (6 shared questions), Math (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: TCS or TikTok?
TCS has 99 Easy, 108 Medium, and 21 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 TCS and TikTok?
Start with the 87 shared problems since they cover what both companies ask most often. Then add 20 TCS-specific and 20 TikTok-specific questions to round out your prep.