Deloitte vs Siemens Interview Questions
Deloitte lists 43 LeetCode interview questions while Siemens lists 25. They share 10 problems — 23% of Deloitte's bank and 40% of Siemens's. Focus on the overlap first, then drill into 33 Deloitte-only and 15 Siemens-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 10 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Deloitte and Siemens.
Step 2 — Company-specific depth: Add Deloitte-specific problems like Merge k Sorted Lists, Change Null Values in a Table to the Previous Value, Second Highest Salary 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
10 Shared Questions
High-priority problems to practice for both Deloitte and Siemens.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Valid Parentheses | Easy |
| Longest Palindromic Substring | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Palindrome Number | Easy |
| Merge Intervals | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Group Anagrams | Medium |
| Rotate Array | Medium |
| Valid Anagram | Easy |
Unique to Deloitte (33)
Problems in Deloitte's list that do not appear at Siemens.
Unique to Siemens (15)
Problems in Siemens's list that do not appear at Deloitte.
| Problem | Difficulty |
|---|---|
| Minimized Maximum of Products Distributed to Any Store | Medium |
| Peaks in Array | Hard |
| Number of Islands | Medium |
| The Skyline Problem | Hard |
| Merge Two Sorted Lists | Easy |
| LRU Cache | Medium |
| First Missing Positive | Hard |
| Maximum Product of Three Numbers | Easy |
| Minimum Add to Make Parentheses Valid | Medium |
| Maximum Product Subarray | Medium |
| Angle Between Hands of a Clock | Medium |
| Single Number III | Medium |
Frequently Asked Questions
How many LeetCode questions do Deloitte and Siemens share?
Deloitte and Siemens share 10 LeetCode interview questions. 33 problems appear only in Deloitte's list and 15 appear only in Siemens's list.
What topics overlap most between Deloitte and Siemens?
The most common shared topics between Deloitte and Siemens are Array (6 shared questions), String (4 shared questions), Hash Table (3 shared questions), Two Pointers (3 shared questions), Sorting (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Deloitte or Siemens?
Deloitte has 17 Easy, 23 Medium, and 3 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 Deloitte and Siemens?
Start with the 10 shared problems since they cover what both companies ask most often. Then add 20 Deloitte-specific and 15 Siemens-specific questions to round out your prep.