Epam Systems vs Zeta Interview Questions
Epam Systems lists 46 LeetCode interview questions while Zeta lists 30. They share 6 problems — 13% of Epam Systems's bank and 20% of Zeta's. Focus on the overlap first, then drill into 40 Epam Systems-only and 24 Zeta-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 6 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Epam Systems and Zeta.
Step 2 — Company-specific depth: Add Epam Systems-specific problems like Two Sum, Minimum Operations to Make a Uni-Value Grid, Valid Parentheses and Zeta-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Zeta skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
6 Shared Questions
High-priority problems to practice for both Epam Systems and Zeta.
| Problem | Difficulty |
|---|---|
| Longest Substring Without Repeating Characters | Medium |
| House Robber | Medium |
| Trapping Rain Water | Hard |
| Merge Intervals | Medium |
| Maximum Subarray | Medium |
| Median of Two Sorted Arrays | Hard |
Unique to Epam Systems (40)
Problems in Epam Systems's list that do not appear at Zeta.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Minimum Operations to Make a Uni-Value Grid | 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 |
Unique to Zeta (24)
Problems in Zeta's list that do not appear at Epam Systems.
| Problem | Difficulty |
|---|---|
| Apply Operations to Make Two Strings Equal | Medium |
| Split Array Largest Sum | Hard |
| Minimum Window Substring | Hard |
| Capacity To Ship Packages Within D Days | Medium |
| Palindrome Partitioning II | Hard |
| Task Scheduler | Medium |
| Remove Boxes | Hard |
| Next Greater Element II | Medium |
| Reverse Nodes in k-Group | Hard |
| Maximal Rectangle | Hard |
| Count Univalue Subtrees | Medium |
| Insert Delete GetRandom O(1) | Medium |
Frequently Asked Questions
How many LeetCode questions do Epam Systems and Zeta share?
Epam Systems and Zeta share 6 LeetCode interview questions. 40 problems appear only in Epam Systems's list and 24 appear only in Zeta's list.
What topics overlap most between Epam Systems and Zeta?
The most common shared topics between Epam Systems and Zeta are Array (5 shared questions), Dynamic Programming (3 shared questions), Divide and Conquer (2 shared questions), Hash Table (1 shared questions), String (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Epam Systems or Zeta?
Epam Systems has 16 Easy, 27 Medium, and 3 Hard questions. Zeta has 0 Easy, 20 Medium, and 10 Hard questions. Zeta has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Epam Systems and Zeta?
Start with the 6 shared problems since they cover what both companies ask most often. Then add 20 Epam Systems-specific and 20 Zeta-specific questions to round out your prep.