Meta vs Palo Alto Networks Interview Questions
Meta lists 217 LeetCode interview questions while Palo Alto Networks lists 46. They share 27 problems — 12% of Meta's bank and 59% of Palo Alto Networks's. Focus on the overlap first, then drill into 190 Meta-only and 19 Palo Alto Networks-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 27 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Meta and Palo Alto Networks.
Step 2 — Company-specific depth: Add Meta-specific problems like Minimum Remove to Make Valid Parentheses, Valid Word Abbreviation, Binary Tree Vertical Order Traversal and Palo Alto Networks-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Meta skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
27 Shared Questions
High-priority problems to practice for both Meta and Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| Merge Sorted Array | Easy |
| Merge Intervals | Medium |
| Basic Calculator II | Medium |
| Two Sum | Easy |
| Diameter of Binary Tree | Easy |
| Subarray Sum Equals K | Medium |
| Valid Parentheses | Easy |
| Longest Common Prefix | Easy |
| Add Two Numbers | Medium |
| Longest Substring Without Repeating Characters | Medium |
| LRU Cache | Medium |
| Longest Palindromic Substring | Medium |
| Median of Two Sorted Arrays | Hard |
| Search in Rotated Sorted Array | Medium |
| Merge Two Sorted Lists | Easy |
| Group Anagrams | Medium |
| Multiply Strings | Medium |
| Binary Tree Zigzag Level Order Traversal | Medium |
| Binary Tree Level Order Traversal | Medium |
| Word Break | Medium |
| Decode String | Medium |
| Koko Eating Bananas | Medium |
| Reverse Linked List II | Medium |
| Restore IP Addresses | Medium |
| Integer to Roman | Medium |
| Path Sum | Easy |
| Path Sum II | Medium |
Unique to Meta (190)
Problems in Meta's list that do not appear at Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| Minimum Remove to Make Valid Parentheses | Medium |
| Valid Word Abbreviation | Easy |
| Binary Tree Vertical Order Traversal | Medium |
| Valid Palindrome II | Easy |
| Lowest Common Ancestor of a Binary Tree III | Medium |
| Kth Largest Element in an Array | Medium |
| Pow(x, n) | Medium |
| Binary Tree Right Side View | Medium |
| Simplify Path | Medium |
| Lowest Common Ancestor of a Binary Tree | Medium |
| Find Peak Element | Medium |
| Nested List Weight Sum | Medium |
Unique to Palo Alto Networks (19)
Problems in Palo Alto Networks's list that do not appear at Meta.
| Problem | Difficulty |
|---|---|
| Find the Longest Equal Subarray | Medium |
| Logger Rate Limiter | Easy |
| String Compression | Medium |
| Design HashMap | Easy |
| Minimum Number of Food Buckets to Feed the Hamsters | Medium |
| Min Stack | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Top K Frequent Words | Medium |
| Linked List Cycle | Easy |
| Design Twitter | Medium |
| Maximum Profit in Job Scheduling | Hard |
| Sliding Window Maximum | Hard |
Frequently Asked Questions
How many LeetCode questions do Meta and Palo Alto Networks share?
Meta and Palo Alto Networks share 27 LeetCode interview questions. 190 problems appear only in Meta's list and 19 appear only in Palo Alto Networks's list.
What topics overlap most between Meta and Palo Alto Networks?
The most common shared topics between Meta and Palo Alto Networks are String (11 shared questions), Array (9 shared questions), Hash Table (7 shared questions), Tree (5 shared questions), Binary Tree (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Meta or Palo Alto Networks?
Meta has 52 Easy, 132 Medium, and 33 Hard questions. Palo Alto Networks has 12 Easy, 29 Medium, and 5 Hard questions. Meta has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Meta and Palo Alto Networks?
Start with the 27 shared problems since they cover what both companies ask most often. Then add 20 Meta-specific and 19 Palo Alto Networks-specific questions to round out your prep.