Google vs Siemens Interview Questions
Google lists 2,305 LeetCode interview questions while Siemens lists 25. They share 24 problems — 1% of Google's bank and 96% of Siemens's. Focus on the overlap first, then drill into 2,281 Google-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 Google and Siemens.
Step 2 — Company-specific depth: Add Google-specific problems like Add Two Numbers, Trapping Rain Water, Median of Two Sorted Arrays and Siemens-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Google 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 Google and Siemens.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Palindrome Number | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Longest Palindromic Substring | Medium |
| Valid Parentheses | Easy |
| Merge Intervals | Medium |
| Number of Islands | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Merge Two Sorted Lists | Easy |
| LRU Cache | Medium |
| Top K Frequent Elements | Medium |
| Rotate Array | Medium |
| Valid Anagram | Easy |
| Group Anagrams | Medium |
| Maximum Product Subarray | Medium |
| First Missing Positive | Hard |
| Clone Graph | Medium |
| The Skyline Problem | Hard |
| Minimum Add to Make Parentheses Valid | Medium |
| Single Number III | Medium |
| Maximum Product of Three Numbers | Easy |
| Angle Between Hands of a Clock | Medium |
| Minimized Maximum of Products Distributed to Any Store | Medium |
| Strong Password Checker | Hard |
Unique to Google (2,281)
Problems in Google's list that do not appear at Siemens.
| Problem | Difficulty |
|---|---|
| Add Two Numbers | Medium |
| Trapping Rain Water | Hard |
| Median of Two Sorted Arrays | Hard |
| Longest Common Prefix | Easy |
| Merge Sorted Array | Easy |
| Longest Substring Without Repeating Characters | Medium |
| 3Sum | Medium |
| Create Hello World Function | Easy |
| Merge Strings Alternately | Easy |
| Longest Consecutive Sequence | Medium |
| Container With Most Water | Medium |
| Recyclable and Low Fat Products | Easy |
Unique to Siemens (1)
Problems in Siemens's list that do not appear at Google.
| Problem | Difficulty |
|---|---|
| Peaks in Array | Hard |
Frequently Asked Questions
How many LeetCode questions do Google and Siemens share?
Google and Siemens share 24 LeetCode interview questions. 2281 problems appear only in Google's list and 1 appear only in Siemens's list.
What topics overlap most between Google and Siemens?
The most common shared topics between Google 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: Google or Siemens?
Google has 601 Easy, 1205 Medium, and 499 Hard questions. Siemens has 8 Easy, 13 Medium, and 4 Hard questions. Google has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Google and Siemens?
Start with the 24 shared problems since they cover what both companies ask most often. Then add 20 Google-specific and 1 Siemens-specific questions to round out your prep.