Epam Systems vs Uber Interview Questions
Epam Systems lists 46 LeetCode interview questions while Uber lists 362. They share 23 problems — 50% of Epam Systems's bank and 6% of Uber's. Focus on the overlap first, then drill into 23 Epam Systems-only and 339 Uber-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 23 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Epam Systems and Uber.
Step 2 — Company-specific depth: Add Epam Systems-specific problems like Minimum Operations to Make a Uni-Value Grid, Merge Sorted Array, Rotate Array and Uber-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Uber skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
23 Shared Questions
High-priority problems to practice for both Epam Systems and Uber.
| 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 |
| Valid Anagram | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| House Robber | Medium |
| Longest Consecutive Sequence | Medium |
| Trapping Rain Water | Hard |
| Merge Intervals | Medium |
| Generate Parentheses | Medium |
| LRU Cache | Medium |
| Add Two Numbers | Medium |
| Reverse Integer | Medium |
| Roman to Integer | Easy |
| Maximum Subarray | Medium |
| Reverse Linked List | Easy |
| Top K Frequent Elements | Medium |
| Kth Largest Element in an Array | Medium |
| Median of Two Sorted Arrays | Hard |
Unique to Epam Systems (23)
Problems in Epam Systems's list that do not appear at Uber.
| Problem | Difficulty |
|---|---|
| Minimum Operations to Make a Uni-Value Grid | Medium |
| Merge Sorted Array | Easy |
| Rotate Array | Medium |
| Reverse String | Easy |
| Partition Equal Subset Sum | Medium |
| String Compression | Medium |
| Reverse Vowels of a String | Easy |
| 3Sum | Medium |
| First Unique Character in a String | Easy |
| Palindrome Number | Easy |
| Maximum Difference Between Node and Ancestor | Medium |
| Pow(x, n) | Medium |
Unique to Uber (339)
Problems in Uber's list that do not appear at Epam Systems.
| Problem | Difficulty |
|---|---|
| Bus Routes | Hard |
| Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit | Medium |
| Alien Dictionary | Hard |
| Number of Islands | Medium |
| Number of Islands II | Hard |
| Squares of a Sorted Array | Easy |
| Construct Quad Tree | Medium |
| Kth Smallest Element in a BST | Medium |
| First Unique Number | Medium |
| Find the Closest Palindrome | Hard |
| Word Search | Medium |
| Insert Delete GetRandom O(1) | Medium |
Frequently Asked Questions
How many LeetCode questions do Epam Systems and Uber share?
Epam Systems and Uber share 23 LeetCode interview questions. 23 problems appear only in Epam Systems's list and 339 appear only in Uber's list.
What topics overlap most between Epam Systems and Uber?
The most common shared topics between Epam Systems and Uber are Array (13 shared questions), Hash Table (8 shared questions), String (8 shared questions), Dynamic Programming (6 shared questions), Sorting (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Epam Systems or Uber?
Epam Systems has 16 Easy, 27 Medium, and 3 Hard questions. Uber has 45 Easy, 215 Medium, and 102 Hard questions. Uber has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Epam Systems and Uber?
Start with the 23 shared problems since they cover what both companies ask most often. Then add 20 Epam Systems-specific and 20 Uber-specific questions to round out your prep.