Amazon vs Siemens Interview Questions
Amazon lists 1,968 LeetCode interview questions while Siemens lists 25. They share 24 problems — 1% of Amazon's bank and 96% of Siemens's. Focus on the overlap first, then drill into 1,944 Amazon-only and 1 Siemens-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 24 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Amazon and Siemens.
Step 2 — Company-specific depth: Add Amazon-specific problems like Trapping Rain Water, Longest Substring Without Repeating Characters, Add Two Numbers and Siemens-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Amazon skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
24 Shared Questions
High-priority problems to practice for both Amazon and Siemens.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| LRU Cache | Medium |
| Number of Islands | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| Longest Palindromic Substring | Medium |
| Merge Intervals | Medium |
| Valid Parentheses | Easy |
| Top K Frequent Elements | Medium |
| Palindrome Number | Easy |
| Merge Two Sorted Lists | Easy |
| Valid Anagram | Easy |
| Remove Duplicates from Sorted Array | Easy |
| First Missing Positive | Hard |
| Rotate Array | Medium |
| Maximum Product Subarray | Medium |
| Clone Graph | Medium |
| Minimum Add to Make Parentheses Valid | Medium |
| Angle Between Hands of a Clock | Medium |
| Minimized Maximum of Products Distributed to Any Store | Medium |
| The Skyline Problem | Hard |
| Single Number III | Medium |
| Maximum Product of Three Numbers | Easy |
| Strong Password Checker | Hard |
Unique to Amazon (1,944)
Problems in Amazon's list that do not appear at Siemens.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Longest Substring Without Repeating Characters | Medium |
| Add Two Numbers | Medium |
| Reorganize String | Medium |
| 3Sum | Medium |
| Container With Most Water | Medium |
| Median of Two Sorted Arrays | Hard |
| Koko Eating Bananas | Medium |
| Course Schedule | Medium |
| Merge k Sorted Lists | Hard |
| Longest Common Prefix | Easy |
| Rotting Oranges | Medium |
Unique to Siemens (1)
Problems in Siemens's list that do not appear at Amazon.
| Problem | Difficulty |
|---|---|
| Peaks in Array | Hard |
Frequently Asked Questions
How many LeetCode questions do Amazon and Siemens share?
Amazon and Siemens share 24 LeetCode interview questions. 1944 problems appear only in Amazon's list and 1 appear only in Siemens's list.
What topics overlap most between Amazon and Siemens?
The most common shared topics between Amazon and Siemens are Array (14 shared questions), Hash Table (7 shared questions), String (6 shared questions), Sorting (6 shared questions), Math (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Amazon or Siemens?
Amazon has 527 Easy, 1074 Medium, and 367 Hard questions. Siemens has 8 Easy, 13 Medium, and 4 Hard questions. Amazon has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Amazon and Siemens?
Start with the 24 shared problems since they cover what both companies ask most often. Then add 20 Amazon-specific and 1 Siemens-specific questions to round out your prep.