Epam Systems vs Yelp Interview Questions
Epam Systems lists 46 LeetCode interview questions while Yelp lists 27. They share 10 problems — 22% of Epam Systems's bank and 37% of Yelp's. Focus on the overlap first, then drill into 36 Epam Systems-only and 17 Yelp-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 10 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Epam Systems and Yelp.
Step 2 — Company-specific depth: Add Epam Systems-specific problems like Minimum Operations to Make a Uni-Value Grid, Valid Parentheses, Move Zeroes and Yelp-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Yelp skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
10 Shared Questions
High-priority problems to practice for both Epam Systems and Yelp.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Longest Common Prefix | Easy |
| Valid Anagram | Easy |
| Group Anagrams | Medium |
| String Compression | Medium |
| Merge Intervals | Medium |
| Reverse Words in a String | Medium |
| Reverse Linked List | Easy |
| Top K Frequent Elements | Medium |
Unique to Epam Systems (36)
Problems in Epam Systems's list that do not appear at Yelp.
| Problem | Difficulty |
|---|---|
| Minimum Operations to Make a Uni-Value Grid | Medium |
| Valid Parentheses | Easy |
| Move Zeroes | Easy |
| Longest Palindromic Substring | Medium |
| Merge Sorted Array | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Rotate Array | Medium |
| Reverse String | Easy |
| House Robber | Medium |
| Partition Equal Subset Sum | Medium |
| Longest Consecutive Sequence | Medium |
| Trapping Rain Water | Hard |
Unique to Yelp (17)
Problems in Yelp's list that do not appear at Epam Systems.
Frequently Asked Questions
How many LeetCode questions do Epam Systems and Yelp share?
Epam Systems and Yelp share 10 LeetCode interview questions. 36 problems appear only in Epam Systems's list and 17 appear only in Yelp's list.
What topics overlap most between Epam Systems and Yelp?
The most common shared topics between Epam Systems and Yelp are String (6 shared questions), Array (5 shared questions), Hash Table (5 shared questions), Sorting (4 shared questions), Two Pointers (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Epam Systems or Yelp?
Epam Systems has 16 Easy, 27 Medium, and 3 Hard questions. Yelp has 7 Easy, 15 Medium, and 5 Hard questions. Yelp has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Epam Systems and Yelp?
Start with the 10 shared problems since they cover what both companies ask most often. Then add 20 Epam Systems-specific and 17 Yelp-specific questions to round out your prep.