Infosys vs Siemens Interview Questions
Infosys lists 105 LeetCode interview questions while Siemens lists 25. They share 13 problems — 12% of Infosys's bank and 52% of Siemens's. Focus on the overlap first, then drill into 92 Infosys-only and 12 Siemens-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 13 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Infosys and Siemens.
Step 2 — Company-specific depth: Add Infosys-specific problems like Maximum Good Subtree Score, Find Building Where Alice and Bob Can Meet, Minimum Reverse Operations and Siemens-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Siemens skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
13 Shared Questions
High-priority problems to practice for both Infosys and Siemens.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Valid Parentheses | Easy |
| Palindrome Number | Easy |
| Remove Duplicates from Sorted Array | Easy |
| Valid Anagram | Easy |
| Merge Intervals | Medium |
| Rotate Array | Medium |
| Group Anagrams | Medium |
| Longest Palindromic Substring | Medium |
| Number of Islands | Medium |
| Merge Two Sorted Lists | Easy |
| Maximum Product of Three Numbers | Easy |
Unique to Infosys (92)
Problems in Infosys's list that do not appear at Siemens.
Unique to Siemens (12)
Problems in Siemens's list that do not appear at Infosys.
| Problem | Difficulty |
|---|---|
| Minimized Maximum of Products Distributed to Any Store | Medium |
| Peaks in Array | Hard |
| The Skyline Problem | Hard |
| LRU Cache | Medium |
| First Missing Positive | Hard |
| Minimum Add to Make Parentheses Valid | Medium |
| Maximum Product Subarray | Medium |
| Angle Between Hands of a Clock | Medium |
| Single Number III | Medium |
| Top K Frequent Elements | Medium |
| Clone Graph | Medium |
| Strong Password Checker | Hard |
Frequently Asked Questions
How many LeetCode questions do Infosys and Siemens share?
Infosys and Siemens share 13 LeetCode interview questions. 92 problems appear only in Infosys's list and 12 appear only in Siemens's list.
What topics overlap most between Infosys and Siemens?
The most common shared topics between Infosys and Siemens are Array (8 shared questions), String (4 shared questions), Sorting (4 shared questions), Hash Table (3 shared questions), Math (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Infosys or Siemens?
Infosys has 32 Easy, 57 Medium, and 16 Hard questions. Siemens has 8 Easy, 13 Medium, and 4 Hard questions. Siemens has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Infosys and Siemens?
Start with the 13 shared problems since they cover what both companies ask most often. Then add 20 Infosys-specific and 12 Siemens-specific questions to round out your prep.