Infosys vs Samsung Interview Questions
Infosys lists 105 LeetCode interview questions while Samsung lists 65. They share 20 problems — 19% of Infosys's bank and 31% of Samsung's. Focus on the overlap first, then drill into 85 Infosys-only and 45 Samsung-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 20 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Infosys and Samsung.
Step 2 — Company-specific depth: Add Infosys-specific problems like Maximum Good Subtree Score, Find Building Where Alice and Bob Can Meet, Minimum Reverse Operations and Samsung-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Samsung skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
20 Shared Questions
High-priority problems to practice for both Infosys and Samsung.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Valid Parentheses | Easy |
| Merge Sorted Array | Easy |
| Next Permutation | Medium |
| Maximum Subarray | Medium |
| Rotate Image | Medium |
| Trapping Rain Water | Hard |
| Longest Common Prefix | Easy |
| Merge Intervals | Medium |
| Generate Parentheses | Medium |
| Rotate Array | Medium |
| Coin Change | Medium |
| 3Sum | Medium |
| Move Zeroes | Easy |
| Longest Palindromic Substring | Medium |
| Number of Islands | Medium |
| Median of Two Sorted Arrays | Hard |
| Edit Distance | Medium |
| Search in Rotated Sorted Array | Medium |
Unique to Infosys (85)
Problems in Infosys's list that do not appear at Samsung.
Unique to Samsung (45)
Problems in Samsung's list that do not appear at Infosys.
Frequently Asked Questions
How many LeetCode questions do Infosys and Samsung share?
Infosys and Samsung share 20 LeetCode interview questions. 85 problems appear only in Infosys's list and 45 appear only in Samsung's list.
What topics overlap most between Infosys and Samsung?
The most common shared topics between Infosys and Samsung are Array (15 shared questions), Dynamic Programming (7 shared questions), Two Pointers (7 shared questions), String (5 shared questions), Sorting (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Infosys or Samsung?
Infosys has 32 Easy, 57 Medium, and 16 Hard questions. Samsung has 12 Easy, 36 Medium, and 17 Hard questions. Samsung has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Infosys and Samsung?
Start with the 20 shared problems since they cover what both companies ask most often. Then add 20 Infosys-specific and 20 Samsung-specific questions to round out your prep.