PayPal vs Siemens Interview Questions
PayPal lists 105 LeetCode interview questions while Siemens lists 25. They share 12 problems — 11% of PayPal's bank and 48% of Siemens's. Focus on the overlap first, then drill into 93 PayPal-only and 13 Siemens-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 12 overlapping problems first. These are the highest-yield questions for candidates interviewing at both PayPal and Siemens.
Step 2 — Company-specific depth: Add PayPal-specific problems like Zigzag Conversion, Minimum Absolute Difference, Longest Increasing Subsequence and Siemens-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
12 Shared Questions
High-priority problems to practice for both PayPal and Siemens.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Two Sum | Easy |
| Merge Intervals | Medium |
| Group Anagrams | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Top K Frequent Elements | Medium |
| Valid Parentheses | Easy |
| First Missing Positive | Hard |
| Valid Anagram | Easy |
| Longest Palindromic Substring | Medium |
| Maximum Product Subarray | Medium |
Unique to PayPal (93)
Problems in PayPal's list that do not appear at Siemens.
Unique to Siemens (13)
Problems in Siemens's list that do not appear at PayPal.
| Problem | Difficulty |
|---|---|
| Minimized Maximum of Products Distributed to Any Store | Medium |
| Peaks in Array | Hard |
| The Skyline Problem | Hard |
| Merge Two Sorted Lists | Easy |
| Remove Duplicates from Sorted Array | Easy |
| Maximum Product of Three Numbers | Easy |
| Minimum Add to Make Parentheses Valid | Medium |
| Palindrome Number | Easy |
| Angle Between Hands of a Clock | Medium |
| Single Number III | Medium |
| Rotate Array | Medium |
| Clone Graph | Medium |
Frequently Asked Questions
How many LeetCode questions do PayPal and Siemens share?
PayPal and Siemens share 12 LeetCode interview questions. 93 problems appear only in PayPal's list and 13 appear only in Siemens's list.
What topics overlap most between PayPal and Siemens?
The most common shared topics between PayPal and Siemens are Array (8 shared questions), Hash Table (6 shared questions), Sorting (4 shared questions), String (4 shared questions), Dynamic Programming (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: PayPal or Siemens?
PayPal has 19 Easy, 69 Medium, and 17 Hard questions. Siemens has 8 Easy, 13 Medium, and 4 Hard questions. PayPal has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both PayPal and Siemens?
Start with the 12 shared problems since they cover what both companies ask most often. Then add 20 PayPal-specific and 13 Siemens-specific questions to round out your prep.