Siemens vs Twitter Interview Questions
Siemens lists 25 LeetCode interview questions while Twitter lists 53. They share 4 problems — 16% of Siemens's bank and 8% of Twitter's. Focus on the overlap first, then drill into 21 Siemens-only and 49 Twitter-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 4 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Siemens and Twitter.
Step 2 — Company-specific depth: Add Siemens-specific problems like Minimized Maximum of Products Distributed to Any Store, Peaks in Array, Number of Islands and Twitter-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Twitter skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
4 Shared Questions
High-priority problems to practice for both Siemens and Twitter.
| Problem | Difficulty |
|---|---|
| Merge Intervals | Medium |
| Valid Parentheses | Easy |
| The Skyline Problem | Hard |
| LRU Cache | Medium |
Unique to Siemens (21)
Problems in Siemens's list that do not appear at Twitter.
| Problem | Difficulty |
|---|---|
| Minimized Maximum of Products Distributed to Any Store | Medium |
| Peaks in Array | Hard |
| Number of Islands | Medium |
| Merge Two Sorted Lists | Easy |
| Two Sum | Easy |
| First Missing Positive | Hard |
| Valid Anagram | Easy |
| Remove Duplicates from Sorted Array | Easy |
| Maximum Product of Three Numbers | Easy |
| Group Anagrams | Medium |
| Minimum Add to Make Parentheses Valid | Medium |
| Longest Palindromic Substring | Medium |
Unique to Twitter (49)
Problems in Twitter's list that do not appear at Siemens.
| Problem | Difficulty |
|---|---|
| Regular Expression Matching | Hard |
| Integer to Roman | Medium |
| Merge k Sorted Lists | Hard |
| Trapping Rain Water | Hard |
| Multiply Strings | Medium |
| Wildcard Matching | Hard |
| Permutation Sequence | Hard |
| Pascal's Triangle | Easy |
| Word Break II | Hard |
| Time Needed to Buy Tickets | Easy |
| Max Points on a Line | Hard |
| One Edit Distance | Medium |
Frequently Asked Questions
How many LeetCode questions do Siemens and Twitter share?
Siemens and Twitter share 4 LeetCode interview questions. 21 problems appear only in Siemens's list and 49 appear only in Twitter's list.
What topics overlap most between Siemens and Twitter?
The most common shared topics between Siemens and Twitter are Array (2 shared questions), Sorting (2 shared questions), String (1 shared questions), Stack (1 shared questions), Divide and Conquer (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Siemens or Twitter?
Siemens has 8 Easy, 13 Medium, and 4 Hard questions. Twitter has 8 Easy, 33 Medium, and 12 Hard questions. Twitter has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Siemens and Twitter?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 20 Siemens-specific and 20 Twitter-specific questions to round out your prep.