Snowflake vs TCS Interview Questions
Snowflake lists 100 LeetCode interview questions while TCS lists 228. They share 21 problems — 21% of Snowflake's bank and 9% of TCS's. Focus on the overlap first, then drill into 79 Snowflake-only and 207 TCS-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 21 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Snowflake and TCS.
Step 2 — Company-specific depth: Add Snowflake-specific problems like Course Schedule II, Parallel Courses III, Design In-Memory File System and TCS-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Snowflake skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
21 Shared Questions
High-priority problems to practice for both Snowflake and TCS.
| Problem | Difficulty |
|---|---|
| Happy Number | Easy |
| Trapping Rain Water | Hard |
| Merge k Sorted Lists | Hard |
| Two Sum | Easy |
| Top K Frequent Elements | Medium |
| LRU Cache | Medium |
| Merge Two Sorted Lists | Easy |
| Task Scheduler | Medium |
| Regular Expression Matching | Hard |
| Min Stack | Medium |
| Single Element in a Sorted Array | Medium |
| Maximum Number of Events That Can Be Attended II | Hard |
| Integer to English Words | Hard |
| Roman to Integer | Easy |
| Rotting Oranges | Medium |
| Container With Most Water | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Non-overlapping Intervals | Medium |
| Add Two Numbers | Medium |
| Jump Game II | Medium |
| Number of Islands | Medium |
Unique to Snowflake (79)
Problems in Snowflake's list that do not appear at TCS.
Unique to TCS (207)
Problems in TCS's list that do not appear at Snowflake.
| Problem | Difficulty |
|---|---|
| Friday Purchases I | Medium |
| Longest Palindromic Substring | Medium |
| Palindrome Number | Easy |
| Maximum Subarray | Medium |
| 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 |
Frequently Asked Questions
How many LeetCode questions do Snowflake and TCS share?
Snowflake and TCS share 21 LeetCode interview questions. 79 problems appear only in Snowflake's list and 207 appear only in TCS's list.
What topics overlap most between Snowflake and TCS?
The most common shared topics between Snowflake and TCS are Array (12 shared questions), Hash Table (6 shared questions), Dynamic Programming (6 shared questions), Math (4 shared questions), Linked List (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Snowflake or TCS?
Snowflake has 13 Easy, 67 Medium, and 20 Hard questions. TCS has 99 Easy, 108 Medium, and 21 Hard questions. Snowflake has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Snowflake and TCS?
Start with the 21 shared problems since they cover what both companies ask most often. Then add 20 Snowflake-specific and 20 TCS-specific questions to round out your prep.