PayPal vs Twitter Interview Questions
PayPal lists 105 LeetCode interview questions while Twitter lists 53. They share 8 problems — 8% of PayPal's bank and 15% of Twitter's. Focus on the overlap first, then drill into 97 PayPal-only and 45 Twitter-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 8 overlapping problems first. These are the highest-yield questions for candidates interviewing at both PayPal and Twitter.
Step 2 — Company-specific depth: Add PayPal-specific problems like Zigzag Conversion, Minimum Absolute Difference, Longest Increasing Subsequence and Twitter-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Twitter skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
8 Shared Questions
High-priority problems to practice for both PayPal and Twitter.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Merge Intervals | Medium |
| Random Pick with Weight | Medium |
| Valid Parentheses | Easy |
| Trapping Rain Water | Hard |
| Happy Number | Easy |
| Design Twitter | Medium |
| Rotting Oranges | Medium |
Unique to PayPal (97)
Problems in PayPal's list that do not appear at Twitter.
Unique to Twitter (45)
Problems in Twitter's list that do not appear at PayPal.
| Problem | Difficulty |
|---|---|
| Regular Expression Matching | Hard |
| Integer to Roman | Medium |
| Merge k Sorted Lists | Hard |
| Multiply Strings | Medium |
| Wildcard Matching | Hard |
| Permutation Sequence | Hard |
| Pascal's Triangle | Easy |
| Word Break II | Hard |
| Time Needed to Buy Tickets | Easy |
| Max Points on a Line | Hard |
| One Edit Distance | Medium |
| Reverse Linked List | Easy |
Frequently Asked Questions
How many LeetCode questions do PayPal and Twitter share?
PayPal and Twitter share 8 LeetCode interview questions. 97 problems appear only in PayPal's list and 45 appear only in Twitter's list.
What topics overlap most between PayPal and Twitter?
The most common shared topics between PayPal and Twitter are Array (4 shared questions), Hash Table (3 shared questions), Linked List (2 shared questions), Design (2 shared questions), Math (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: PayPal or Twitter?
PayPal has 19 Easy, 69 Medium, and 17 Hard questions. Twitter has 8 Easy, 33 Medium, and 12 Hard questions. Twitter has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both PayPal and Twitter?
Start with the 8 shared problems since they cover what both companies ask most often. Then add 20 PayPal-specific and 20 Twitter-specific questions to round out your prep.