TCS vs Yelp Interview Questions
TCS lists 228 LeetCode interview questions while Yelp lists 27. They share 11 problems — 5% of TCS's bank and 41% of Yelp's. Focus on the overlap first, then drill into 217 TCS-only and 16 Yelp-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 11 overlapping problems first. These are the highest-yield questions for candidates interviewing at both TCS and Yelp.
Step 2 — Company-specific depth: Add TCS-specific problems like Friday Purchases I, Longest Palindromic Substring, Palindrome Number and Yelp-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Yelp skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
11 Shared Questions
High-priority problems to practice for both TCS and Yelp.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Common Prefix | Easy |
| Valid Anagram | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Merge Intervals | Medium |
| Group Anagrams | Medium |
| Reverse Words in a String | Medium |
| String Compression | Medium |
| Top K Frequent Elements | Medium |
| Reverse Linked List | Easy |
| Word Ladder | Hard |
Unique to TCS (217)
Problems in TCS's list that do not appear at Yelp.
| Problem | Difficulty |
|---|---|
| Friday Purchases I | Medium |
| Longest Palindromic Substring | Medium |
| Palindrome Number | Easy |
| Maximum Subarray | Medium |
| Move Zeroes | Easy |
| Majority Element | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Sort Colors | Medium |
| Find the Index of the First Occurrence in a String | Easy |
| Single Number | Easy |
| Second Highest Salary | Medium |
| Valid Parentheses | Easy |
Unique to Yelp (16)
Problems in Yelp's list that do not appear at TCS.
Frequently Asked Questions
How many LeetCode questions do TCS and Yelp share?
TCS and Yelp share 11 LeetCode interview questions. 217 problems appear only in TCS's list and 16 appear only in Yelp's list.
What topics overlap most between TCS and Yelp?
The most common shared topics between TCS and Yelp are String (7 shared questions), Hash Table (6 shared questions), Array (5 shared questions), Sorting (4 shared questions), Two Pointers (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: TCS or Yelp?
TCS has 99 Easy, 108 Medium, and 21 Hard questions. Yelp has 7 Easy, 15 Medium, and 5 Hard questions. Yelp has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both TCS and Yelp?
Start with the 11 shared problems since they cover what both companies ask most often. Then add 20 TCS-specific and 16 Yelp-specific questions to round out your prep.