Epam Systems vs Visa Interview Questions
Epam Systems lists 46 LeetCode interview questions while Visa lists 146. They share 29 problems — 63% of Epam Systems's bank and 20% of Visa's. Focus on the overlap first, then drill into 17 Epam Systems-only and 117 Visa-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 29 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Epam Systems and Visa.
Step 2 — Company-specific depth: Add Epam Systems-specific problems like Minimum Operations to Make a Uni-Value Grid, Move Zeroes, Reverse String and Visa-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Visa skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
29 Shared Questions
High-priority problems to practice for both Epam Systems and Visa.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Valid Parentheses | 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 |
| Partition Equal Subset Sum | Medium |
| Longest Consecutive Sequence | Medium |
| Trapping Rain Water | Hard |
| Reverse Vowels of a String | Easy |
| 3Sum | Medium |
| First Unique Character in a String | Easy |
| Merge Intervals | Medium |
| LRU Cache | Medium |
| Two Sum II - Input Array Is Sorted | Medium |
| Maximum Subarray | Medium |
| Reverse Words in a String | Medium |
| Unique Paths | Medium |
| Edit Distance | Medium |
| Reverse Linked List | Easy |
| Sort Characters By Frequency | Medium |
| Top K Frequent Elements | Medium |
| Kth Largest Element in an Array | Medium |
| Median of Two Sorted Arrays | Hard |
| Merge Two Sorted Lists | Easy |
Unique to Epam Systems (17)
Problems in Epam Systems's list that do not appear at Visa.
| Problem | Difficulty |
|---|---|
| Minimum Operations to Make a Uni-Value Grid | Medium |
| Move Zeroes | Easy |
| Reverse String | Easy |
| House Robber | Medium |
| String Compression | Medium |
| Generate Parentheses | Medium |
| Add Two Numbers | Medium |
| Palindrome Number | Easy |
| Maximum Difference Between Node and Ancestor | Medium |
| Reverse Integer | Medium |
| Pow(x, n) | Medium |
| Duplicate Emails | Easy |
Unique to Visa (117)
Problems in Visa's list that do not appear at Epam Systems.
Frequently Asked Questions
How many LeetCode questions do Epam Systems and Visa share?
Epam Systems and Visa share 29 LeetCode interview questions. 17 problems appear only in Epam Systems's list and 117 appear only in Visa's list.
What topics overlap most between Epam Systems and Visa?
The most common shared topics between Epam Systems and Visa are Array (16 shared questions), String (11 shared questions), Hash Table (9 shared questions), Two Pointers (8 shared questions), Sorting (8 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Epam Systems or Visa?
Epam Systems has 16 Easy, 27 Medium, and 3 Hard questions. Visa has 32 Easy, 92 Medium, and 22 Hard questions. Visa has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Epam Systems and Visa?
Start with the 29 shared problems since they cover what both companies ask most often. Then add 17 Epam Systems-specific and 20 Visa-specific questions to round out your prep.