Epam Systems vs Palo Alto Networks Interview Questions
Epam Systems lists 46 LeetCode interview questions while Palo Alto Networks lists 46. They share 14 problems — 30% of Epam Systems's bank and 30% of Palo Alto Networks's. Focus on the overlap first, then drill into 32 Epam Systems-only and 32 Palo Alto Networks-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 14 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Epam Systems and Palo Alto Networks.
Step 2 — Company-specific depth: Add Epam Systems-specific problems like Minimum Operations to Make a Uni-Value Grid, Move Zeroes, Valid Anagram and Palo Alto Networks-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Palo Alto Networks skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
14 Shared Questions
High-priority problems to practice for both Epam Systems and Palo Alto Networks.
| 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 |
| Group Anagrams | Medium |
| String Compression | Medium |
| Merge Intervals | Medium |
| LRU Cache | Medium |
| Add Two Numbers | Medium |
| Multiply Strings | Medium |
| Median of Two Sorted Arrays | Hard |
| Merge Two Sorted Lists | Easy |
Unique to Epam Systems (32)
Problems in Epam Systems's list that do not appear at Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| Minimum Operations to Make a Uni-Value Grid | Medium |
| Move Zeroes | Easy |
| Valid Anagram | 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 |
| Reverse Vowels of a String | Easy |
| 3Sum | Medium |
Unique to Palo Alto Networks (32)
Problems in Palo Alto Networks's list that do not appear at Epam Systems.
| Problem | Difficulty |
|---|---|
| Find the Longest Equal Subarray | Medium |
| Logger Rate Limiter | Easy |
| Design HashMap | Easy |
| Search in Rotated Sorted Array | Medium |
| Decode String | Medium |
| Minimum Number of Food Buckets to Feed the Hamsters | Medium |
| Min Stack | Medium |
| Binary Tree Level Order Traversal | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Restore IP Addresses | Medium |
| Top K Frequent Words | Medium |
| Integer to Roman | Medium |
Frequently Asked Questions
How many LeetCode questions do Epam Systems and Palo Alto Networks share?
Epam Systems and Palo Alto Networks share 14 LeetCode interview questions. 32 problems appear only in Epam Systems's list and 32 appear only in Palo Alto Networks's list.
What topics overlap most between Epam Systems and Palo Alto Networks?
The most common shared topics between Epam Systems and Palo Alto Networks are String (7 shared questions), Array (6 shared questions), Hash Table (4 shared questions), Two Pointers (3 shared questions), Sorting (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Epam Systems or Palo Alto Networks?
Epam Systems has 16 Easy, 27 Medium, and 3 Hard questions. Palo Alto Networks has 12 Easy, 29 Medium, and 5 Hard questions. Palo Alto Networks has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Epam Systems and Palo Alto Networks?
Start with the 14 shared problems since they cover what both companies ask most often. Then add 20 Epam Systems-specific and 20 Palo Alto Networks-specific questions to round out your prep.