Epam Systems vs NVIDIA Interview Questions
Epam Systems lists 46 LeetCode interview questions while NVIDIA lists 136. They share 30 problems — 65% of Epam Systems's bank and 22% of NVIDIA's. Focus on the overlap first, then drill into 16 Epam Systems-only and 106 NVIDIA-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 NVIDIA.
Step 2 — Company-specific depth: Add Epam Systems-specific problems like Minimum Operations to Make a Uni-Value Grid, Rotate Array, Partition Equal Subset Sum and NVIDIA-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: NVIDIA 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 NVIDIA.
| 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 |
| Reverse String | Easy |
| House Robber | Medium |
| Longest Consecutive Sequence | Medium |
| String Compression | Medium |
| Trapping Rain Water | Hard |
| 3Sum | Medium |
| First Unique Character in a String | Easy |
| Merge Intervals | Medium |
| Generate Parentheses | Medium |
| LRU Cache | Medium |
| Add Two Numbers | Medium |
| Pow(x, n) | Medium |
| Maximum Subarray | Medium |
| Reverse Words in a String | Medium |
| Unique Paths | Medium |
| Reverse Linked List | Easy |
| 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 (16)
Problems in Epam Systems's list that do not appear at NVIDIA.
| Problem | Difficulty |
|---|---|
| Minimum Operations to Make a Uni-Value Grid | Medium |
| Rotate Array | Medium |
| Partition Equal Subset Sum | Medium |
| Reverse Vowels of a String | Easy |
| Palindrome Number | Easy |
| Maximum Difference Between Node and Ancestor | Medium |
| Reverse Integer | Medium |
| Two Sum II - Input Array Is Sorted | Medium |
| Duplicate Emails | Easy |
| Roman to Integer | Easy |
| Count Salary Categories | Medium |
| First Missing Positive | Hard |
Unique to NVIDIA (106)
Problems in NVIDIA's list that do not appear at Epam Systems.
| Problem | Difficulty |
|---|---|
| Special Binary String | Hard |
| Merge k Sorted Lists | Hard |
| Minimum Operations to Reduce an Integer to 0 | Medium |
| Last Stone Weight | Easy |
| Maximize Greatness of an Array | Medium |
| Number of Islands | Medium |
| Maximum Number of Visible Points | Hard |
| Restore IP Addresses | Medium |
| Search in Rotated Sorted Array | Medium |
| Fizz Buzz | Easy |
| Reverse Bits | Easy |
| Missing Number | Easy |
Frequently Asked Questions
How many LeetCode questions do Epam Systems and NVIDIA share?
Epam Systems and NVIDIA share 30 LeetCode interview questions. 16 problems appear only in Epam Systems's list and 106 appear only in NVIDIA's list.
What topics overlap most between Epam Systems and NVIDIA?
The most common shared topics between Epam Systems and NVIDIA are Array (15 shared questions), String (11 shared questions), Hash Table (8 shared questions), Two Pointers (8 shared questions), Dynamic Programming (7 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Epam Systems or NVIDIA?
Epam Systems has 16 Easy, 27 Medium, and 3 Hard questions. NVIDIA has 32 Easy, 89 Medium, and 15 Hard questions. NVIDIA has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Epam Systems and NVIDIA?
Start with the 30 shared problems since they cover what both companies ask most often. Then add 16 Epam Systems-specific and 20 NVIDIA-specific questions to round out your prep.