LinkedIn vs TCS Interview Questions
LinkedIn lists 141 LeetCode interview questions while TCS lists 228. They share 41 problems — 29% of LinkedIn's bank and 18% of TCS's. Focus on the overlap first, then drill into 100 LinkedIn-only and 187 TCS-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 41 overlapping problems first. These are the highest-yield questions for candidates interviewing at both LinkedIn and TCS.
Step 2 — Company-specific depth: Add LinkedIn-specific problems like Max Stack, Nested List Weight Sum II, All O`one Data Structure and TCS-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: LinkedIn skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
41 Shared Questions
High-priority problems to practice for both LinkedIn and TCS.
| Problem | Difficulty |
|---|---|
| Word Ladder | Hard |
| Maximum Subarray | Medium |
| Valid Parentheses | Easy |
| Number of Islands | Medium |
| Maximum Product Subarray | Medium |
| Search in Rotated Sorted Array | Medium |
| Pow(x, n) | Medium |
| Find First and Last Position of Element in Sorted Array | Medium |
| Serialize and Deserialize Binary Tree | Hard |
| Maximum Depth of Binary Tree | Easy |
| Letter Combinations of a Phone Number | Medium |
| Merge Intervals | Medium |
| Find Pivot Index | Easy |
| House Robber | Medium |
| Longest Palindromic Subsequence | Medium |
| LRU Cache | Medium |
| Merge Two Sorted Lists | Easy |
| Permutations | Medium |
| Two Sum | Easy |
| Merge k Sorted Lists | Hard |
| Sqrt(x) | Easy |
| Product of Array Except Self | Medium |
| Find K Closest Elements | Medium |
| Insert Interval | Medium |
| Min Stack | Medium |
| Bulb Switcher | Medium |
| Task Scheduler | Medium |
| Intersection of Two Linked Lists | Easy |
| Find Smallest Letter Greater Than Target | Easy |
| Longest Palindromic Substring | Medium |
Showing top 30 of 41 shared problems.
Unique to LinkedIn (100)
Problems in LinkedIn's list that do not appear at TCS.
| Problem | Difficulty |
|---|---|
| Max Stack | Hard |
| Nested List Weight Sum II | Medium |
| All O`one Data Structure | Hard |
| Find the Celebrity | Medium |
| Nested List Weight Sum | Medium |
| Design Authentication Manager | Medium |
| Find Leaves of Binary Tree | Medium |
| Shortest Word Distance II | Medium |
| Max Consecutive Ones III | Medium |
| Can Place Flowers | Easy |
| Insert Delete GetRandom O(1) | Medium |
| Binary Tree Upside Down | Medium |
Unique to TCS (187)
Problems in TCS's list that do not appear at LinkedIn.
| Problem | Difficulty |
|---|---|
| Friday Purchases I | Medium |
| Palindrome Number | Easy |
| Move Zeroes | Easy |
| Majority Element | Easy |
| Longest Common Prefix | Easy |
| Sort Colors | Medium |
| Valid Anagram | Easy |
| Find the Index of the First Occurrence in a String | Easy |
| Single Number | Easy |
| Second Highest Salary | Medium |
| Subarray Sum Equals K | Medium |
| Rotate Array | Medium |
Frequently Asked Questions
How many LeetCode questions do LinkedIn and TCS share?
LinkedIn and TCS share 41 LeetCode interview questions. 100 problems appear only in LinkedIn's list and 187 appear only in TCS's list.
What topics overlap most between LinkedIn and TCS?
The most common shared topics between LinkedIn and TCS are Array (15 shared questions), Hash Table (6 shared questions), String (6 shared questions), Dynamic Programming (5 shared questions), Binary Search (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: LinkedIn or TCS?
LinkedIn has 25 Easy, 90 Medium, and 26 Hard questions. TCS has 99 Easy, 108 Medium, and 21 Hard questions. LinkedIn has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both LinkedIn and TCS?
Start with the 41 shared problems since they cover what both companies ask most often. Then add 20 LinkedIn-specific and 20 TCS-specific questions to round out your prep.