Palo Alto Networks vs PayPal Interview Questions
Palo Alto Networks lists 46 LeetCode interview questions while PayPal lists 105. They share 13 problems — 28% of Palo Alto Networks's bank and 12% of PayPal's. Focus on the overlap first, then drill into 33 Palo Alto Networks-only and 92 PayPal-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 13 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Palo Alto Networks and PayPal.
Step 2 — Company-specific depth: Add Palo Alto Networks-specific problems like Find the Longest Equal Subarray, Logger Rate Limiter, String Compression and PayPal-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: PayPal skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
13 Shared Questions
High-priority problems to practice for both Palo Alto Networks and PayPal.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Search in Rotated Sorted Array | Medium |
| Group Anagrams | Medium |
| Merge Intervals | Medium |
| Median of Two Sorted Arrays | Hard |
| Top K Frequent Words | Medium |
| Subarray Sum Equals K | Medium |
| Design Twitter | Medium |
| Two Sum | Easy |
| Valid Parentheses | Easy |
| Koko Eating Bananas | Medium |
| Longest Palindromic Substring | Medium |
Unique to Palo Alto Networks (33)
Problems in Palo Alto Networks's list that do not appear at PayPal.
| Problem | Difficulty |
|---|---|
| Find the Longest Equal Subarray | Medium |
| Logger Rate Limiter | Easy |
| String Compression | Medium |
| Add Two Numbers | Medium |
| Design HashMap | Easy |
| Decode String | Medium |
| Minimum Number of Food Buckets to Feed the Hamsters | Medium |
| Min Stack | Medium |
| Binary Tree Level Order Traversal | Medium |
| Merge Sorted Array | Easy |
| Insert Delete GetRandom O(1) | Medium |
| Restore IP Addresses | Medium |
Unique to PayPal (92)
Problems in PayPal's list that do not appear at Palo Alto Networks.
Frequently Asked Questions
How many LeetCode questions do Palo Alto Networks and PayPal share?
Palo Alto Networks and PayPal share 13 LeetCode interview questions. 33 problems appear only in Palo Alto Networks's list and 92 appear only in PayPal's list.
What topics overlap most between Palo Alto Networks and PayPal?
The most common shared topics between Palo Alto Networks and PayPal are Array (8 shared questions), Hash Table (7 shared questions), String (5 shared questions), Binary Search (3 shared questions), Sorting (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Palo Alto Networks or PayPal?
Palo Alto Networks has 12 Easy, 29 Medium, and 5 Hard questions. PayPal has 19 Easy, 69 Medium, and 17 Hard questions. PayPal has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Palo Alto Networks and PayPal?
Start with the 13 shared problems since they cover what both companies ask most often. Then add 20 Palo Alto Networks-specific and 20 PayPal-specific questions to round out your prep.