ByteDance vs Palo Alto Networks Interview Questions
ByteDance lists 64 LeetCode interview questions while Palo Alto Networks lists 46. They share 19 problems — 30% of ByteDance's bank and 41% of Palo Alto Networks's. Focus on the overlap first, then drill into 45 ByteDance-only and 27 Palo Alto Networks-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 19 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ByteDance and Palo Alto Networks.
Step 2 — Company-specific depth: Add ByteDance-specific problems like Remove Duplicate Letters, Smallest Subsequence of Distinct Characters, First Day Where You Have Been in All the Rooms and Palo Alto Networks-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: ByteDance skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
19 Shared Questions
High-priority problems to practice for both ByteDance and Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Basic Calculator II | Medium |
| Merge Intervals | Medium |
| Two Sum | Easy |
| Search in Rotated Sorted Array | Medium |
| Add Two Numbers | Medium |
| Basic Calculator | Hard |
| Multiply Strings | Medium |
| Restore IP Addresses | Medium |
| Decode String | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Subarray Sum Equals K | Medium |
| Remove Zero Sum Consecutive Nodes from Linked List | Medium |
| Longest Palindromic Substring | Medium |
| Reverse Linked List II | Medium |
| Valid Parentheses | Easy |
| Binary Tree Zigzag Level Order Traversal | Medium |
| Sliding Window Maximum | Hard |
Unique to ByteDance (45)
Problems in ByteDance's list that do not appear at Palo Alto Networks.
| Problem | Difficulty |
|---|---|
| Remove Duplicate Letters | Medium |
| Smallest Subsequence of Distinct Characters | Medium |
| First Day Where You Have Been in All the Rooms | Medium |
| Number of Islands | Medium |
| Course Schedule | Medium |
| Combination Sum | Medium |
| Shortest Bridge | Medium |
| House Robber | Medium |
| Maximal Square | Medium |
| Regular Expression Matching | Hard |
| Top K Frequent Elements | Medium |
| Design Memory Allocator | Medium |
Unique to Palo Alto Networks (27)
Problems in Palo Alto Networks's list that do not appear at ByteDance.
| Problem | Difficulty |
|---|---|
| Find the Longest Equal Subarray | Medium |
| Logger Rate Limiter | Easy |
| String Compression | Medium |
| Design HashMap | Easy |
| Group Anagrams | Medium |
| Minimum Number of Food Buckets to Feed the Hamsters | Medium |
| Min Stack | Medium |
| Binary Tree Level Order Traversal | Medium |
| Merge Sorted Array | Easy |
| Median of Two Sorted Arrays | Hard |
| Top K Frequent Words | Medium |
| Integer to Roman | Medium |
Frequently Asked Questions
How many LeetCode questions do ByteDance and Palo Alto Networks share?
ByteDance and Palo Alto Networks share 19 LeetCode interview questions. 45 problems appear only in ByteDance's list and 27 appear only in Palo Alto Networks's list.
What topics overlap most between ByteDance and Palo Alto Networks?
The most common shared topics between ByteDance and Palo Alto Networks are String (8 shared questions), Hash Table (6 shared questions), Array (6 shared questions), Math (5 shared questions), Linked List (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: ByteDance or Palo Alto Networks?
ByteDance has 4 Easy, 51 Medium, and 9 Hard questions. Palo Alto Networks has 12 Easy, 29 Medium, and 5 Hard questions. ByteDance has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both ByteDance and Palo Alto Networks?
Start with the 19 shared problems since they cover what both companies ask most often. Then add 20 ByteDance-specific and 20 Palo Alto Networks-specific questions to round out your prep.