Epam Systems vs Infosys Interview Questions
Epam Systems lists 46 LeetCode interview questions while Infosys lists 105. They share 30 problems — 65% of Epam Systems's bank and 29% of Infosys's. Focus on the overlap first, then drill into 16 Epam Systems-only and 75 Infosys-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 30 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Epam Systems and Infosys.
Step 2 — Company-specific depth: Add Epam Systems-specific problems like Minimum Operations to Make a Uni-Value Grid, Partition Equal Subset Sum, String Compression and Infosys-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Infosys skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
30 Shared Questions
High-priority problems to practice for both Epam Systems and Infosys.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Valid Parentheses | Easy |
| Move Zeroes | Easy |
| Longest Common Prefix | Easy |
| Longest Palindromic Substring | Medium |
| Merge Sorted Array | Easy |
| Valid Anagram | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| Rotate Array | Medium |
| Reverse String | Easy |
| House Robber | Medium |
| Longest Consecutive Sequence | Medium |
| Trapping Rain Water | Hard |
| 3Sum | Medium |
| Merge Intervals | Medium |
| Generate Parentheses | Medium |
| Add Two Numbers | Medium |
| Palindrome Number | Easy |
| Reverse Integer | Medium |
| Pow(x, n) | Medium |
| Two Sum II - Input Array Is Sorted | Medium |
| Roman to Integer | Easy |
| Maximum Subarray | Medium |
| Reverse Words in a String | Medium |
| Edit Distance | Medium |
| Kth Largest Element in an Array | Medium |
| Median of Two Sorted Arrays | Hard |
| Merge Two Sorted Lists | Easy |
Unique to Epam Systems (16)
Problems in Epam Systems's list that do not appear at Infosys.
| Problem | Difficulty |
|---|---|
| Minimum Operations to Make a Uni-Value Grid | Medium |
| Partition Equal Subset Sum | Medium |
| String Compression | Medium |
| Reverse Vowels of a String | Easy |
| First Unique Character in a String | Easy |
| LRU Cache | Medium |
| Maximum Difference Between Node and Ancestor | Medium |
| Duplicate Emails | Easy |
| Count Salary Categories | Medium |
| First Missing Positive | Hard |
| Multiply Strings | Medium |
| Unique Paths | Medium |
Unique to Infosys (75)
Problems in Infosys's list that do not appear at Epam Systems.
Frequently Asked Questions
How many LeetCode questions do Epam Systems and Infosys share?
Epam Systems and Infosys share 30 LeetCode interview questions. 16 problems appear only in Epam Systems's list and 75 appear only in Infosys's list.
What topics overlap most between Epam Systems and Infosys?
The most common shared topics between Epam Systems and Infosys are Array (16 shared questions), String (11 shared questions), Two Pointers (9 shared questions), Dynamic Programming (7 shared questions), Hash Table (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Epam Systems or Infosys?
Epam Systems has 16 Easy, 27 Medium, and 3 Hard questions. Infosys has 32 Easy, 57 Medium, and 16 Hard questions. Infosys has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Epam Systems and Infosys?
Start with the 30 shared problems since they cover what both companies ask most often. Then add 16 Epam Systems-specific and 20 Infosys-specific questions to round out your prep.