Snap vs TCS Interview Questions
Snap lists 84 LeetCode interview questions while TCS lists 228. They share 21 problems — 25% of Snap's bank and 9% of TCS's. Focus on the overlap first, then drill into 63 Snap-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 Snap and TCS.
Step 2 — Company-specific depth: Add Snap-specific problems like Meeting Rooms II, Minimum Window Substring, Design Log Storage System and TCS-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Snap 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 Snap and TCS.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Word Ladder | Hard |
| Reverse Words in a String | Medium |
| Min Stack | Medium |
| Burst Balloons | Hard |
| String Compression | Medium |
| Reverse Linked List | Easy |
| Top K Frequent Elements | Medium |
| Merge Intervals | Medium |
| Reorder List | Medium |
| Power of Two | Easy |
| Group Anagrams | Medium |
| Merge k Sorted Lists | Hard |
| Product of Array Except Self | Medium |
| Binary Tree Maximum Path Sum | Hard |
| Letter Combinations of a Phone Number | Medium |
| Add Binary | Easy |
| Search in Rotated Sorted Array | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Koko Eating Bananas | Medium |
Unique to Snap (63)
Problems in Snap's list that do not appear at TCS.
| Problem | Difficulty |
|---|---|
| Meeting Rooms II | Medium |
| Minimum Window Substring | Hard |
| Design Log Storage System | Medium |
| Making A Large Island | Hard |
| Number of Distinct Islands | Medium |
| Bus Routes | Hard |
| Word Break II | Hard |
| Basic Calculator II | Medium |
| Combination Sum | Medium |
| Bricks Falling When Hit | Hard |
| Alien Dictionary | Hard |
| Closest Binary Search Tree Value | Easy |
Unique to TCS (207)
Problems in TCS's list that do not appear at Snap.
| Problem | Difficulty |
|---|---|
| Friday Purchases I | Medium |
| Two Sum | Easy |
| Longest Palindromic Substring | Medium |
| Palindrome Number | Easy |
| Maximum Subarray | Medium |
| Move Zeroes | Easy |
| Majority Element | Easy |
| Longest Common Prefix | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Sort Colors | Medium |
| Valid Anagram | Easy |
| Find the Index of the First Occurrence in a String | Easy |
Frequently Asked Questions
How many LeetCode questions do Snap and TCS share?
Snap and TCS share 21 LeetCode interview questions. 63 problems appear only in Snap's list and 207 appear only in TCS's list.
What topics overlap most between Snap and TCS?
The most common shared topics between Snap and TCS are Array (8 shared questions), String (7 shared questions), Hash Table (6 shared questions), Linked List (4 shared questions), Two Pointers (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Snap or TCS?
Snap has 5 Easy, 52 Medium, and 27 Hard questions. TCS has 99 Easy, 108 Medium, and 21 Hard questions. Snap has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Snap and TCS?
Start with the 21 shared problems since they cover what both companies ask most often. Then add 20 Snap-specific and 20 TCS-specific questions to round out your prep.